Abstract ICMNS 2006 @ITB; Dr. Iriawati&Rina Fitriana, S.Si.
•
0 likes•29 views
This abstract describe the ttitle of my past research during pursuing my bachelor degree. At the end of the day, this has driven me to learn deeper on how phytoremediation can take place as one of the approaches in "a friendly" environmental management.
Report
Share
Report
Share
Download to read offline
![CADMIUM TOXICITY ON ROOT GROWTH OF WATER HYACINTH
[Eichornia crassipes (Mart.) Solms]
Iriawati & Rina Fitriana
School of Life Sciences and Technology, Bandung Institute of Technology
Jl Ganesa 10, Bandung - INDONESIA
ABSTRACT
Cadmium (Cd) is a phytotoxic non-essensial heavy metal. It can inhibit growth
or even caused cell death. One of the potential plants to accumulate Cd in
phytoremediation is water hyacinth. This study observed the effect of Cd on root
growth of water hyacinth. Experiments were carried out with water hyacinth, sampled
from Cikole Village, Bandung – West Java. Water hyacinth were washed and cultured
in the basket containing 5 L tap water. After 3 weeks acclimatization, those plants
were treated with either 0.25 ppm; 0.50 ppm; 0.75 ppm or 1.00 ppm CdCl2 for 12
days. Assays and analysis were taken in four days intervals on Cd content on root, and
radial – sectioned roots. Quantitative analysis of sectioned roots was conducted on
hypodermal cell layers number, hypodermal and cortical thickness, root and stele
diameter, as well as cortical cell layers number. The results showed that root could
absorb and accumulate Cd. As many as 1088,466 mg Cd/kg dry weight was found in
root of 1.00 ppm treated plant after 12 days of culture. However, cadmium toxicity in
root was also observed in this 1.00 ppm treated plants. It was indicated by the
reduction of hypodermal cell layers number and thickness, cortical cell layers number
and Cd accumulation rate on root. Lower concentration of Cd used did not
significantly affect root growth. As conclusion, water hyacinth can tolerate cadmium
up to 0.75 ppm of CdCl2 and cadmium toxicity symptom in root was detected after
water hyacinth exposed to 1.00 ppm.](https://image.slidesharecdn.com/abstracticmns2006-iriawatirina-200825081959/85/Abstract-ICMNS-2006-ITB-Dr-Iriawati-Rina-Fitriana-S-Si-1-320.jpg)
Recommended
Clean Water For All
Using low cost nanotechnology, CCT has developed passive water purification technology that can purify a contaminated river into certifiable clean drinking water affordable to the majority of the world's population.
Assessment of heavy metal contamination in green leafy
This document analyzes heavy metal contamination in two leafy green vegetables, palak and coriander, grown in five areas of Bangalore, India that receive wastewater. Samples of the vegetables, soil, and water were tested for levels of copper, zinc, lead, chromium, cadmium, and manganese. Results found high levels of lead in both vegetables across all areas, exceeding safe limits. Zinc also exceeded limits in some areas. Chromium and cadmium were detected at some sites. The high metal levels found indicate contamination from automobile exhaust, pesticides, and industrial waste in the wastewater used for irrigation. Cytological studies on the plants showed chromosomal abnormalities, suggesting genetic effects from the
Biochar Conserving Water for Plants
The document describes innovative methods for conserving water and nutrients for plants called biochar rootigation, biochar sapigation, and floatigation. Biochar rootigation involves placing biochar compost in pouches attached to plant roots or in pits surrounding roots. Biochar sapigation applies a layer of biochar powder to exposed sap wood to absorb water and nutrients. Floatigation grows plants on floats where water is absorbed through capillary action in biochar. These methods aim to reduce water and fertilizer loss by allowing plants to slowly take up precisely what they need.
Water Pollution Prevention and Treatment using Nanotechnology
If nanotechnology is to represent societal as well as technical progress, It will have to contribute to the solution of global problems such as water quality. Providing clean and affordable water to meet human needs is a grand challenge of the 21st century. Worldwide, water supply struggles to keep up with the fast growing demand, which is exacerbated by population growth, global climate change, and water quality deterioration. The need for technological innovation to enable integrated water management cannot be overstated. Nanotechnology holds great potential in advancing water and wastewater treatment to improve treatment efficiency as well as to augment water supply through safe use of unconventional water sources.
Given the importance of clean water to people in developed and developing countries, numerous organizations are considering the potential application of nanoscience to solve technical challenges associated with the removal of water contaminants. Technology developers and others claim that these technologies offer more effective, efficient, durable, and affordable approaches to removing specific types of pollutants from water. A range of water treatment
devices that incorporate nanotechnology are already on the market and others are in advanced stages of development. These nanotechnology applications include:
• Nanofiltration membranes, including desalination technologies;
• Attapulgite clay, zeolite, and polymer filters;
• Nanocatalysts;
• Magnetic nanoparticles; and
• Nanosensors for the detection of contaminants
Influence of Silicon on Cadmium uptake in durum wheat cultivars
These slides narrates a research project about effect of Si on uptake of radioactive isotope Cadmium in wheat plant.
A.F. Ismail (presentation)
This presentation outlines research on nano-enabled membranes for water and wastewater treatment. It discusses the global water crisis and factors contributing to it. It then introduces membrane technology and how nanomaterials can enhance membranes' performance. Several studies are summarized that developed membranes incorporating nanomaterials like iron-manganese binary oxides, TiO2, and graphene oxide to improve arsenic removal, photocatalytic degradation, and desalination, respectively. Challenges and opportunities for commercializing nano-enabled water treatment are addressed. The presentation concludes by highlighting some commercial products developed by the speaker's research center.
12 water and waste water treatment
Nano materials have properties that make them well suited for addressing issues with current water treatment technologies. Their large surface area and reactivity allows them to more effectively adsorb contaminants. Nano adsorbents like carbon nanotubes and metal oxides can remove higher levels of pollutants. Nano catalysts like titanium dioxide and zinc oxide use photoactivity to break down chemicals. Nanoscale filters made of alumina or carbon nanotubes can remove bacteria and viruses. While nanotechnology shows promise for improving water treatment, further research is needed to assess environmental and health risks and make the techniques economically viable at large scales.
Water Pollution Due to IDOL Immersion in Water Bodies of Kolkata
This document discusses water pollution due to idol immersion in water bodies in Kolkata, India. It analyzes water quality parameters before and after idol immersion in a site in Garia. Idols are made of materials like plaster of Paris, metals, and paints containing heavy metals. These materials pollute the water by increasing acidity and heavy metal content. Parameters like pH, turbidity, dissolved oxygen, and biochemical oxygen demand significantly changed after immersion. The study found idol immersion increases pollution and negatively impacts aquatic life and humans who use the water. Guidelines for safer idol immersion are needed to control pollution.
Recommended
Clean Water For All
Using low cost nanotechnology, CCT has developed passive water purification technology that can purify a contaminated river into certifiable clean drinking water affordable to the majority of the world's population.
Assessment of heavy metal contamination in green leafy
This document analyzes heavy metal contamination in two leafy green vegetables, palak and coriander, grown in five areas of Bangalore, India that receive wastewater. Samples of the vegetables, soil, and water were tested for levels of copper, zinc, lead, chromium, cadmium, and manganese. Results found high levels of lead in both vegetables across all areas, exceeding safe limits. Zinc also exceeded limits in some areas. Chromium and cadmium were detected at some sites. The high metal levels found indicate contamination from automobile exhaust, pesticides, and industrial waste in the wastewater used for irrigation. Cytological studies on the plants showed chromosomal abnormalities, suggesting genetic effects from the
Biochar Conserving Water for Plants
The document describes innovative methods for conserving water and nutrients for plants called biochar rootigation, biochar sapigation, and floatigation. Biochar rootigation involves placing biochar compost in pouches attached to plant roots or in pits surrounding roots. Biochar sapigation applies a layer of biochar powder to exposed sap wood to absorb water and nutrients. Floatigation grows plants on floats where water is absorbed through capillary action in biochar. These methods aim to reduce water and fertilizer loss by allowing plants to slowly take up precisely what they need.
Water Pollution Prevention and Treatment using Nanotechnology
If nanotechnology is to represent societal as well as technical progress, It will have to contribute to the solution of global problems such as water quality. Providing clean and affordable water to meet human needs is a grand challenge of the 21st century. Worldwide, water supply struggles to keep up with the fast growing demand, which is exacerbated by population growth, global climate change, and water quality deterioration. The need for technological innovation to enable integrated water management cannot be overstated. Nanotechnology holds great potential in advancing water and wastewater treatment to improve treatment efficiency as well as to augment water supply through safe use of unconventional water sources.
Given the importance of clean water to people in developed and developing countries, numerous organizations are considering the potential application of nanoscience to solve technical challenges associated with the removal of water contaminants. Technology developers and others claim that these technologies offer more effective, efficient, durable, and affordable approaches to removing specific types of pollutants from water. A range of water treatment
devices that incorporate nanotechnology are already on the market and others are in advanced stages of development. These nanotechnology applications include:
• Nanofiltration membranes, including desalination technologies;
• Attapulgite clay, zeolite, and polymer filters;
• Nanocatalysts;
• Magnetic nanoparticles; and
• Nanosensors for the detection of contaminants
Influence of Silicon on Cadmium uptake in durum wheat cultivars
These slides narrates a research project about effect of Si on uptake of radioactive isotope Cadmium in wheat plant.
A.F. Ismail (presentation)
This presentation outlines research on nano-enabled membranes for water and wastewater treatment. It discusses the global water crisis and factors contributing to it. It then introduces membrane technology and how nanomaterials can enhance membranes' performance. Several studies are summarized that developed membranes incorporating nanomaterials like iron-manganese binary oxides, TiO2, and graphene oxide to improve arsenic removal, photocatalytic degradation, and desalination, respectively. Challenges and opportunities for commercializing nano-enabled water treatment are addressed. The presentation concludes by highlighting some commercial products developed by the speaker's research center.
12 water and waste water treatment
Nano materials have properties that make them well suited for addressing issues with current water treatment technologies. Their large surface area and reactivity allows them to more effectively adsorb contaminants. Nano adsorbents like carbon nanotubes and metal oxides can remove higher levels of pollutants. Nano catalysts like titanium dioxide and zinc oxide use photoactivity to break down chemicals. Nanoscale filters made of alumina or carbon nanotubes can remove bacteria and viruses. While nanotechnology shows promise for improving water treatment, further research is needed to assess environmental and health risks and make the techniques economically viable at large scales.
Water Pollution Due to IDOL Immersion in Water Bodies of Kolkata
This document discusses water pollution due to idol immersion in water bodies in Kolkata, India. It analyzes water quality parameters before and after idol immersion in a site in Garia. Idols are made of materials like plaster of Paris, metals, and paints containing heavy metals. These materials pollute the water by increasing acidity and heavy metal content. Parameters like pH, turbidity, dissolved oxygen, and biochemical oxygen demand significantly changed after immersion. The study found idol immersion increases pollution and negatively impacts aquatic life and humans who use the water. Guidelines for safer idol immersion are needed to control pollution.
Nanotechnology in water treatment
1. Nanotechnology shows potential for improving water treatment through the use of nanomaterials for filtration, remediation, sensing, and disinfection. Various nanomaterials under research include carbon nanotubes, nanoparticles, and dendrimers for filtration and zeolites, carbon nanotubes, and nanoparticles for remediation.
2. While nanotechnology could address issues like water scarcity and quality, research is still needed to fully understand the toxicity of engineered nanoparticles. More data is needed on their environmental and health impacts before large-scale use in water applications.
3. Overall, nanotechnology represents an emerging area that may lead to novel solutions for water treatment through the unique properties of nanomaterials. However, more
Nano technology in ervironmental engineering
Nano technology has the potential to address current problems in water treatment by utilizing unique properties of nanomaterials. Nanoparticles can be used for nanoadsorption, nanocatalysis, nanofiltration, and nanoremediation to more efficiently treat water and wastewater. However, further development is needed to prove safety and reduce costs before wide applications. Research on environmental risks from nanoparticles in water systems is also important.
woodchip bioreactots for nitrate removal in agricultural land drainage
Wood chip bioreactors can be used to remove nitrate from agricultural drainage water. They work by routing drainage water through trenches filled with wood chips that provide carbon as a food source for denitrifying bacteria. These bacteria convert nitrate into harmless nitrogen gas. Key factors that affect the performance of bioreactors include hydraulic retention time, influent nitrate concentration, temperature, and available carbon sources within the wood chips. Pilot and field-scale studies have shown that bioreactors can effectively remove 30-80% of nitrate from drainage areas of 30-120 acres. While requiring some management, bioreactors provide a cost-effective solution to nitrate contamination compared to other options such as wetlands or changing fertil
Nanotechnology in water pollution treatment
Water pollution and scarcity are increasingly pressing issues that could surpass concerns over oil. Nanotechnology offers a potential solution by enabling efficient removal of toxic contaminants from water. The document outlines various sources and health impacts of water pollution, as well as conventional treatment methods and their limitations. It then describes how scientists in India developed a nanotechnology-based treatment using nano-silica-silver composite that can purify water and remove pathogens simultaneously without chemicals. Nanoscale zero-valent iron is also discussed as another nanotechnology approach for heavy metal removal through redox, cementation, adsorption and precipitation processes.
A study on the removal of metal ions by Eichhornia Crassipes
The document summarizes a study on using water hyacinth (Eichhornia Crassipes) to remove metal ions from water. It discusses the objectives of studying the plant's efficiency in removing metals and the effect of pH. It reviews literature on the plant's removal of metals like copper, cadmium, and chromium from over 90% within 25 days. The methodology discusses preparing synthetic wastewater with metals like iron, aluminum, copper and chromium at different pH levels and concentrations. Results show the plant removed over 90% of chromium at pH 4.5 but only 33-77% at other pH levels. Iron removal was 78-80% on average. The plant absorbed more iron than other metals.
The use of Engineered Nanomaterials in Environmental Remediation: Environment...
The use of Engineered Nanomaterials in Environmental Remediation: Environment...Gregory P Nichols, MPH, CPH
Nanotechnology is the purposeful manipulation of matter on an atomic scale. Materials created in this manner often exhibit unique physical and chemical properties, which have useful applications in various industries. A growing use for some types of engineered nanomaterials is in the area of environmental remediation, termed nanoremediation. While this technique appears to be effective for cleanup, there are still many unanswered questions regarding its long-term impact to environmental quality and human health. No long-term studies exist regarding the potential environmental impact of nanoremediation. While animal studies have shown the potential for adverse health effects, limited data regarding human health are available. The US Environmental Protection Agency is currently adapting existing regulations to cover the use of nanomaterials in remediation, but this approach is limited. Many questions still remain regarding fate and transport, verification of clean-up, and potential occupational and community exposures.IRJET- Green Synthesis, Characterization of Agnps by using Annona Cherimola L...
This document summarizes research on the green synthesis of silver nanoparticles (AgNPs) using the leaf extract of Annona cherimola. Key points:
1) AgNPs were successfully synthesized using the leaf extract as a reducing and stabilizing agent. Formation of AgNPs was confirmed using UV-Vis spectroscopy.
2) Characterization of the AgNPs using SEM, TEM, XRD, and anti-microbial testing showed they were spherical, crystalline, and between 30-35nm in size.
3) The AgNPs demonstrated antimicrobial activity against several pathogens such as E. coli, Xanthomonas, Pseudomonas, Bacillus, and Staphyloc
Removal of Heavy Metals from Waste Water Using Water Hyacinth
Water pollution has become one of the most serious
problems of today’s civilization. In the last few years
considerable amount of research has been done on the
potential of aquatic macrophytes for pollutant removal or even
as bio-indicators for heavy metals in aquatic ecosystems. Water
hyacinth is one of the aquatic plant species successfully used
for wastewater treatment. It is very efficient in removing
pollutants like suspended solids, BOD, organic matter, heavy
metals and pathogens. This paper mainly focuses on the
treatment of waste water using the plant ‘water hyacinth’ and
has given emphasis to the removal of heavy metals by the
plant. Water hyacinth’ could grow in sewage; they absorb and
digest the pollutants in wastewater, thus converting sewage
effluents to relatively clean water. Thus, the plants hold
promise as a natural water purification system, which could
be established at a fraction of the cost of a conventional sewage
treatment facility. The study conducted in this regard revealed
how efficiently wastewater could be treated using the plant
‘Water hyacinth’.
Water nanaotechnology
The document discusses various applications of nanotechnology for water treatment, including adsorption, membranes, photocatalysis, disinfection, and sensing. It summarizes several studies that used nanomaterials like nanozeolites, polymer-modified magnetic nanoparticles, and titanium dioxide for removing pollutants from water through adsorption and degradation. The studies demonstrated these nanomaterials can effectively remove substances like nitrophenols, hormones, and heavy metals from water sources. The integrated use of technologies like UV photolysis and nanofiltration was also shown to remove a variety of micropollutants.
One page presentation quality
Recent studies found higher levels of dissolved metals, suspended particles, and other pollutants in popular brands of bottled water compared to tap water from major Canadian cities. Bottled water is not regularly tested for all contaminants like pesticides. Studies suggest that reverse osmosis water has the lowest levels of contaminants, followed by activated carbon treated water, then bottled water, with tap water having higher contaminant levels. Separate studies by health and environmental agencies found pesticides, particles, metals and other contaminants in bottled water brands.
Nanotechnology for Water Treatment
Nanotechnology is the emerging technology in almost all fields of science ..It is preferred and studied due to its high efficiency in all fields of its application... Also being used in overcoming or eliminating environmental pollution to a greater level, this presentation is all about how Nanotechnology is useful in treating polluted water
Flax fiber production
This document discusses different techniques for retting flax, which is a microbial process that degrades tissues and separates fibers from non-fiber materials in plants. It describes stand retting, water retting, and enzyme retting. Water retting can occur anaerobically in cold water or warm water and has advantages like low cost but disadvantages like pollution. Aerating the retting liquor in water retting reduces odor and waste accumulation. After retting, the fibers go through scutching to remove straw and pith, then drying and dressing.
Home Inspector Series - Nitrite in Drinking Water
Home Inspector Series for Nitrite in Drinking Water
Learn about EPA safe levels, harmful effects of nitrite, correct sampling procedures, and other great info from a professional analyst certified in drinking water analysis.
Ella Maru Portfolio
This document contains summaries of articles from several nanotechnology and materials science journals, including Nature Materials, Nature Nanotechnology, Advanced Functional Materials, Small, and Nature Nanotechnology. The summaries discuss topics such as biomineralization, palladium nanocrystals, 2D semiconductors, metamaterials, crystal growth, supercapacitors, implanted hydrogels, elastic shells, artificial viruses, two-dimensional materials, molecular motors, and biocomputing with nanoparticles.
Heavy metal pollution and Human health concern
Heavy metals, distribution and its impact on human and soil health and how it will affect on yield of different crops
Aqueous Stable Silver Nanoparticles Derived from Nimble Leaves of Psidium Gua...
Aqueous Stable Silver Nanoparticles Derived from Nimble Leaves of Psidium Gua...Conference-Proceedings-CrimsonPublishers
Here, we report the synthesis of silver nanoparticles (AgNPs) by utilizing extract of Psidium guajava. In
this study leaf was with extricated alcohol, further this extract is utilized for the preparation of nanoparticles followed by treatment with silver nitrate solution. Color change from colorless to dark-yellow and
SPR band (UV-Vis) 420nm which indicates the synthesis of plant reduced silver nanoparticles. The presences of proteins as capping agent, which increase the stability of AgNPs in the colloids, are characterized
by Fourier transform infrared spectroscopy (FTIR). Transmission electron microscopy (TEM) demonstrated the presence at spherical AgNPs in the range of 15-30nm. The bactericidal activity of standard
antibiotics was essentially expanded in the presence of AgNPs against pathogenic bacteria, S Aureus,
Staphylococcus, E Coli, P Putida and fungus A Niger.Nanotechnology in waste water treatment
This document discusses how nanotechnology can be used for waste water treatment. It explains that nanoparticles are effective at removing pollutants from water due to their high surface area. Various nanomaterials like metal nanoparticles, carbon nanomaterials, and zeolites can be used. Specifically, nano sorbents can sorbe a wide variety of organic and inorganic contaminants, nano catalysts can increase reaction rates to degrade contaminants, and biomimetic membranes allow for efficient desalination using reverse osmosis. Molecularly imprinted polymers also selectively remove pollutants even at low concentrations. Overall, nanotechnology provides effective, efficient, and eco-friendly approaches to water treatment.
GS-LSAMP-Poster
This study investigated the potential of Poplar Deltoides for phytoremediation of zinc (Zn) contaminated soil. Poplar plants were grown in soil either contaminated with Zn or uncontaminated control soil. After three weeks, the plants were harvested and analyzed. The results showed the Zn contaminated plants stored significantly more Zn in their roots, indicating the plants immobilized the Zn underground. However, increased Zn concentrations were also found in the leaves and leaf litter, raising concerns about potential Zn migration after leaf litter deposition. Further research is needed to evaluate using Poplar Deltoides for other metal pollutants and at larger scales.
Water chemistry for kindasa 2
This presentation is in two parts made by me for non technical staff of Kindasa water during my tenure, any person may use this for education purpose with my identity,
A study on physiological, anatomical characterization of selected carrot plan...
Carrots were first used for medical purposes and gradually used as food. It is also a good source of magnesium and manganese. Cadmium is a nonessential element that adversely affects plant growth and development. It is considered as one of the significant pollutants due to its high toxicity and more solubility in water. Experiment was conducted in Old Botanical Garden of University of Agriculture Faisalabad to check the response of carrot genotypes grown under Cadmium Chloride stress (0µM, 10µM, 15µM and 20µM). Variety of carrot (gajar) used was Red Gold. Seeds were sown in 12 pots, which were filled with sand, in 2nd week of November. Germination observed after one week of sowing. The experiment was laid out in a completely randomized design with three replicates. Seeds of carrot (red gold) were purchased from Ayyub Agriculture Research Institute (AARI) Faisalabad and sown directly in the plastic pot. 8 seeds per pot were distributed. Hogland solution was also applied to replicates and then I applied Cadmium Chloride stress to the plants to start my experiment. Cadmium stress decreased the uptake and distribution of essential elements in plant. Studies had revealed that heavy metals cause adverse effects on plant growth, which further lead to decrease plant yield and inhibition of enzymatic activities.In the present study, plant growth characteristics, root length and shoot length decreased under Cd stress. In fact, salt stress decreased all attributes in carrot when the concentrations of Cadmium chloride increased higher and higher.
Evaluation of Cadmium tolerant Fungi in the dying Staff and their removal Pot...
Cadmium tolerance and bioremediation capacity of seven isolates including Aspergilus versicolor, Aspergillus fumigatus, Paecilomyces sp.9, Paecilomyces sp.G, Terichoderma sp, Microsporum sp,Cladosporium sp were determined. Minimum inhibitory concentration values among 2,000-6,000 mg lˉ1proved great ability of isolated strains to survive in cadmium polluted environments. The most tolerant fungi, Aspergilus versicolor, showed tolerance index of 0.93 in 100 mg lˉ1 cadmium agar media. Fungal resistance against cadmium is depended directly on strain’s biological function. A. versicolor was found to bioaccumulation over 7.67mg of cadmium per 1 g of mycelium, followed by 6.546, 6.354, and 6.286, 6.134 by Paecilomyces sp, Aspergilus fumigatus, Microsporum sp and Terichoderma sp, respectively. It can be noted that tolerance of the strains appears to be independent from bioaccumulation capacity. Finally, the results indicated that A. versicolor could be a prospective candidate for bioremediation processes.
Physiological Characteristics of Maize under Chelators Induced Phytoextractio...
Physiological Characteristics of Maize under Chelators Induced Phytoextractio...Conferenceproceedings
9th International Scientific Conference on Applied
Sciences and Engineering
6-7 June 2016
Nippon Hotel, İstanbul-TurkeyMore Related Content
What's hot
Nanotechnology in water treatment
1. Nanotechnology shows potential for improving water treatment through the use of nanomaterials for filtration, remediation, sensing, and disinfection. Various nanomaterials under research include carbon nanotubes, nanoparticles, and dendrimers for filtration and zeolites, carbon nanotubes, and nanoparticles for remediation.
2. While nanotechnology could address issues like water scarcity and quality, research is still needed to fully understand the toxicity of engineered nanoparticles. More data is needed on their environmental and health impacts before large-scale use in water applications.
3. Overall, nanotechnology represents an emerging area that may lead to novel solutions for water treatment through the unique properties of nanomaterials. However, more
Nano technology in ervironmental engineering
Nano technology has the potential to address current problems in water treatment by utilizing unique properties of nanomaterials. Nanoparticles can be used for nanoadsorption, nanocatalysis, nanofiltration, and nanoremediation to more efficiently treat water and wastewater. However, further development is needed to prove safety and reduce costs before wide applications. Research on environmental risks from nanoparticles in water systems is also important.
woodchip bioreactots for nitrate removal in agricultural land drainage
Wood chip bioreactors can be used to remove nitrate from agricultural drainage water. They work by routing drainage water through trenches filled with wood chips that provide carbon as a food source for denitrifying bacteria. These bacteria convert nitrate into harmless nitrogen gas. Key factors that affect the performance of bioreactors include hydraulic retention time, influent nitrate concentration, temperature, and available carbon sources within the wood chips. Pilot and field-scale studies have shown that bioreactors can effectively remove 30-80% of nitrate from drainage areas of 30-120 acres. While requiring some management, bioreactors provide a cost-effective solution to nitrate contamination compared to other options such as wetlands or changing fertil
Nanotechnology in water pollution treatment
Water pollution and scarcity are increasingly pressing issues that could surpass concerns over oil. Nanotechnology offers a potential solution by enabling efficient removal of toxic contaminants from water. The document outlines various sources and health impacts of water pollution, as well as conventional treatment methods and their limitations. It then describes how scientists in India developed a nanotechnology-based treatment using nano-silica-silver composite that can purify water and remove pathogens simultaneously without chemicals. Nanoscale zero-valent iron is also discussed as another nanotechnology approach for heavy metal removal through redox, cementation, adsorption and precipitation processes.
A study on the removal of metal ions by Eichhornia Crassipes
The document summarizes a study on using water hyacinth (Eichhornia Crassipes) to remove metal ions from water. It discusses the objectives of studying the plant's efficiency in removing metals and the effect of pH. It reviews literature on the plant's removal of metals like copper, cadmium, and chromium from over 90% within 25 days. The methodology discusses preparing synthetic wastewater with metals like iron, aluminum, copper and chromium at different pH levels and concentrations. Results show the plant removed over 90% of chromium at pH 4.5 but only 33-77% at other pH levels. Iron removal was 78-80% on average. The plant absorbed more iron than other metals.
The use of Engineered Nanomaterials in Environmental Remediation: Environment...
The use of Engineered Nanomaterials in Environmental Remediation: Environment...Gregory P Nichols, MPH, CPH
Nanotechnology is the purposeful manipulation of matter on an atomic scale. Materials created in this manner often exhibit unique physical and chemical properties, which have useful applications in various industries. A growing use for some types of engineered nanomaterials is in the area of environmental remediation, termed nanoremediation. While this technique appears to be effective for cleanup, there are still many unanswered questions regarding its long-term impact to environmental quality and human health. No long-term studies exist regarding the potential environmental impact of nanoremediation. While animal studies have shown the potential for adverse health effects, limited data regarding human health are available. The US Environmental Protection Agency is currently adapting existing regulations to cover the use of nanomaterials in remediation, but this approach is limited. Many questions still remain regarding fate and transport, verification of clean-up, and potential occupational and community exposures.IRJET- Green Synthesis, Characterization of Agnps by using Annona Cherimola L...
This document summarizes research on the green synthesis of silver nanoparticles (AgNPs) using the leaf extract of Annona cherimola. Key points:
1) AgNPs were successfully synthesized using the leaf extract as a reducing and stabilizing agent. Formation of AgNPs was confirmed using UV-Vis spectroscopy.
2) Characterization of the AgNPs using SEM, TEM, XRD, and anti-microbial testing showed they were spherical, crystalline, and between 30-35nm in size.
3) The AgNPs demonstrated antimicrobial activity against several pathogens such as E. coli, Xanthomonas, Pseudomonas, Bacillus, and Staphyloc
Removal of Heavy Metals from Waste Water Using Water Hyacinth
Water pollution has become one of the most serious
problems of today’s civilization. In the last few years
considerable amount of research has been done on the
potential of aquatic macrophytes for pollutant removal or even
as bio-indicators for heavy metals in aquatic ecosystems. Water
hyacinth is one of the aquatic plant species successfully used
for wastewater treatment. It is very efficient in removing
pollutants like suspended solids, BOD, organic matter, heavy
metals and pathogens. This paper mainly focuses on the
treatment of waste water using the plant ‘water hyacinth’ and
has given emphasis to the removal of heavy metals by the
plant. Water hyacinth’ could grow in sewage; they absorb and
digest the pollutants in wastewater, thus converting sewage
effluents to relatively clean water. Thus, the plants hold
promise as a natural water purification system, which could
be established at a fraction of the cost of a conventional sewage
treatment facility. The study conducted in this regard revealed
how efficiently wastewater could be treated using the plant
‘Water hyacinth’.
Water nanaotechnology
The document discusses various applications of nanotechnology for water treatment, including adsorption, membranes, photocatalysis, disinfection, and sensing. It summarizes several studies that used nanomaterials like nanozeolites, polymer-modified magnetic nanoparticles, and titanium dioxide for removing pollutants from water through adsorption and degradation. The studies demonstrated these nanomaterials can effectively remove substances like nitrophenols, hormones, and heavy metals from water sources. The integrated use of technologies like UV photolysis and nanofiltration was also shown to remove a variety of micropollutants.
One page presentation quality
Recent studies found higher levels of dissolved metals, suspended particles, and other pollutants in popular brands of bottled water compared to tap water from major Canadian cities. Bottled water is not regularly tested for all contaminants like pesticides. Studies suggest that reverse osmosis water has the lowest levels of contaminants, followed by activated carbon treated water, then bottled water, with tap water having higher contaminant levels. Separate studies by health and environmental agencies found pesticides, particles, metals and other contaminants in bottled water brands.
Nanotechnology for Water Treatment
Nanotechnology is the emerging technology in almost all fields of science ..It is preferred and studied due to its high efficiency in all fields of its application... Also being used in overcoming or eliminating environmental pollution to a greater level, this presentation is all about how Nanotechnology is useful in treating polluted water
Flax fiber production
This document discusses different techniques for retting flax, which is a microbial process that degrades tissues and separates fibers from non-fiber materials in plants. It describes stand retting, water retting, and enzyme retting. Water retting can occur anaerobically in cold water or warm water and has advantages like low cost but disadvantages like pollution. Aerating the retting liquor in water retting reduces odor and waste accumulation. After retting, the fibers go through scutching to remove straw and pith, then drying and dressing.
Home Inspector Series - Nitrite in Drinking Water
Home Inspector Series for Nitrite in Drinking Water
Learn about EPA safe levels, harmful effects of nitrite, correct sampling procedures, and other great info from a professional analyst certified in drinking water analysis.
Ella Maru Portfolio
This document contains summaries of articles from several nanotechnology and materials science journals, including Nature Materials, Nature Nanotechnology, Advanced Functional Materials, Small, and Nature Nanotechnology. The summaries discuss topics such as biomineralization, palladium nanocrystals, 2D semiconductors, metamaterials, crystal growth, supercapacitors, implanted hydrogels, elastic shells, artificial viruses, two-dimensional materials, molecular motors, and biocomputing with nanoparticles.
Heavy metal pollution and Human health concern
Heavy metals, distribution and its impact on human and soil health and how it will affect on yield of different crops
Aqueous Stable Silver Nanoparticles Derived from Nimble Leaves of Psidium Gua...
Aqueous Stable Silver Nanoparticles Derived from Nimble Leaves of Psidium Gua...Conference-Proceedings-CrimsonPublishers
Here, we report the synthesis of silver nanoparticles (AgNPs) by utilizing extract of Psidium guajava. In
this study leaf was with extricated alcohol, further this extract is utilized for the preparation of nanoparticles followed by treatment with silver nitrate solution. Color change from colorless to dark-yellow and
SPR band (UV-Vis) 420nm which indicates the synthesis of plant reduced silver nanoparticles. The presences of proteins as capping agent, which increase the stability of AgNPs in the colloids, are characterized
by Fourier transform infrared spectroscopy (FTIR). Transmission electron microscopy (TEM) demonstrated the presence at spherical AgNPs in the range of 15-30nm. The bactericidal activity of standard
antibiotics was essentially expanded in the presence of AgNPs against pathogenic bacteria, S Aureus,
Staphylococcus, E Coli, P Putida and fungus A Niger.Nanotechnology in waste water treatment
This document discusses how nanotechnology can be used for waste water treatment. It explains that nanoparticles are effective at removing pollutants from water due to their high surface area. Various nanomaterials like metal nanoparticles, carbon nanomaterials, and zeolites can be used. Specifically, nano sorbents can sorbe a wide variety of organic and inorganic contaminants, nano catalysts can increase reaction rates to degrade contaminants, and biomimetic membranes allow for efficient desalination using reverse osmosis. Molecularly imprinted polymers also selectively remove pollutants even at low concentrations. Overall, nanotechnology provides effective, efficient, and eco-friendly approaches to water treatment.
GS-LSAMP-Poster
This study investigated the potential of Poplar Deltoides for phytoremediation of zinc (Zn) contaminated soil. Poplar plants were grown in soil either contaminated with Zn or uncontaminated control soil. After three weeks, the plants were harvested and analyzed. The results showed the Zn contaminated plants stored significantly more Zn in their roots, indicating the plants immobilized the Zn underground. However, increased Zn concentrations were also found in the leaves and leaf litter, raising concerns about potential Zn migration after leaf litter deposition. Further research is needed to evaluate using Poplar Deltoides for other metal pollutants and at larger scales.
Water chemistry for kindasa 2
This presentation is in two parts made by me for non technical staff of Kindasa water during my tenure, any person may use this for education purpose with my identity,
What's hot (19)
woodchip bioreactots for nitrate removal in agricultural land drainage
woodchip bioreactots for nitrate removal in agricultural land drainage
A study on the removal of metal ions by Eichhornia Crassipes
A study on the removal of metal ions by Eichhornia Crassipes
The use of Engineered Nanomaterials in Environmental Remediation: Environment...
The use of Engineered Nanomaterials in Environmental Remediation: Environment...
IRJET- Green Synthesis, Characterization of Agnps by using Annona Cherimola L...
IRJET- Green Synthesis, Characterization of Agnps by using Annona Cherimola L...
Removal of Heavy Metals from Waste Water Using Water Hyacinth
Removal of Heavy Metals from Waste Water Using Water Hyacinth
Aqueous Stable Silver Nanoparticles Derived from Nimble Leaves of Psidium Gua...
Aqueous Stable Silver Nanoparticles Derived from Nimble Leaves of Psidium Gua...
Similar to Abstract ICMNS 2006 @ITB; Dr. Iriawati&Rina Fitriana, S.Si.
A study on physiological, anatomical characterization of selected carrot plan...
Carrots were first used for medical purposes and gradually used as food. It is also a good source of magnesium and manganese. Cadmium is a nonessential element that adversely affects plant growth and development. It is considered as one of the significant pollutants due to its high toxicity and more solubility in water. Experiment was conducted in Old Botanical Garden of University of Agriculture Faisalabad to check the response of carrot genotypes grown under Cadmium Chloride stress (0µM, 10µM, 15µM and 20µM). Variety of carrot (gajar) used was Red Gold. Seeds were sown in 12 pots, which were filled with sand, in 2nd week of November. Germination observed after one week of sowing. The experiment was laid out in a completely randomized design with three replicates. Seeds of carrot (red gold) were purchased from Ayyub Agriculture Research Institute (AARI) Faisalabad and sown directly in the plastic pot. 8 seeds per pot were distributed. Hogland solution was also applied to replicates and then I applied Cadmium Chloride stress to the plants to start my experiment. Cadmium stress decreased the uptake and distribution of essential elements in plant. Studies had revealed that heavy metals cause adverse effects on plant growth, which further lead to decrease plant yield and inhibition of enzymatic activities.In the present study, plant growth characteristics, root length and shoot length decreased under Cd stress. In fact, salt stress decreased all attributes in carrot when the concentrations of Cadmium chloride increased higher and higher.
Evaluation of Cadmium tolerant Fungi in the dying Staff and their removal Pot...
Cadmium tolerance and bioremediation capacity of seven isolates including Aspergilus versicolor, Aspergillus fumigatus, Paecilomyces sp.9, Paecilomyces sp.G, Terichoderma sp, Microsporum sp,Cladosporium sp were determined. Minimum inhibitory concentration values among 2,000-6,000 mg lˉ1proved great ability of isolated strains to survive in cadmium polluted environments. The most tolerant fungi, Aspergilus versicolor, showed tolerance index of 0.93 in 100 mg lˉ1 cadmium agar media. Fungal resistance against cadmium is depended directly on strain’s biological function. A. versicolor was found to bioaccumulation over 7.67mg of cadmium per 1 g of mycelium, followed by 6.546, 6.354, and 6.286, 6.134 by Paecilomyces sp, Aspergilus fumigatus, Microsporum sp and Terichoderma sp, respectively. It can be noted that tolerance of the strains appears to be independent from bioaccumulation capacity. Finally, the results indicated that A. versicolor could be a prospective candidate for bioremediation processes.
Physiological Characteristics of Maize under Chelators Induced Phytoextractio...
Physiological Characteristics of Maize under Chelators Induced Phytoextractio...Conferenceproceedings
9th International Scientific Conference on Applied
Sciences and Engineering
6-7 June 2016
Nippon Hotel, İstanbul-TurkeyE041013242
This document summarizes a study that investigated the biosorption of cadmium (Cd) from aqueous solution onto sweet potato skin (SPS). The amount of Cd adsorbed was found to depend on solution pH, contact time, and initial Cd concentration. Equilibrium data fit the Freundlich isotherm model best. Thermodynamic parameters indicated the adsorption process was spontaneous and endothermic in nature. The study characterized the functional groups of SPS and evaluated it as a potential low-cost biosorbent for removing heavy metals like Cd from wastewater.
Treatment of industrial effluent
This document summarizes a study on using the aquatic plant Eichhornia crassipes (water hyacinth) to treat tannery effluent through phytoremediation. The study involved collecting tannery effluent samples, analyzing their physicochemical properties, treating the effluent with water hyacinth for 20 days, and re-analyzing the treated effluent. Key findings were that the water hyacinth significantly reduced parameters like pH, TDS, BOD, COD, and improved the overall quality of the effluent, demonstrating its potential for low-cost, effective phytoremediation of tannery wastewater.
EcologyFinal Christy Twilight
The study analyzed the effects of excess copper on Sedum reflexum seedlings over 22 days. Plants were subjected to copper concentrations of 0, 6, 12, and 24 μM added on days 1, 3, 9, and 15. Visual analysis found decreased growth, whitening stems, and leaf curling at higher concentrations. Chlorophyll-a levels significantly decreased with increasing copper concentration over time. While biomass initially increased at some concentrations after 6 days, further analysis is needed to determine if this was due to copper sequestration. Despite negative effects on growth and chlorophyll, no plant senescence occurred. This suggests Sedum reflexum may have similar hyperaccumulation mechanisms as Sedum alfredii to tolerate
Bioaccumulation of Cadmium Heavy Metal And its Effect on the Level of Chlorop...
Cadmium is known to inhibit the biosynthesis of chlorophyll and can disrupt the photosynthesis process. This research aimed at investigating the ability of the accumulation of cadmium heavy metals (Cd) by Thalassia hemprichii in the waters of the Ambon Island and its effect on the levels of chlorophyll and carotenoid in the leaves. Cd heavy metal analysis was carried out on samples of sea water, sediments, as well as the roots and leaves of T. hemprichii using Atomic Absorption Spectrometer (AAS). The ability of accumulation and translocation of Cd heavy metals T. hemprichii was determined by calculating the Bioconcentration Factor (BCF) and translocation factor (TF). The analysis of chlorophyll and carotenoid content used UV-Vis Spectrophotometer. The results of the research showed that the BCF value of T. hemprichii reached 141.04, while the TF value was 7.63. The BCF and TF value which was more than one indicated that T. hemprichii had the potential to be metal accumulators. The effect of the levels of Cd heavy metals in the leaves and the level of chlorophyll showed a negative correlation, but not significant. The level of Cd heavy metals in the leaves also could increase the levels of carotenoids of the leaves of T. hemprichii. These results indicate that T. hemprichii had the potential as phytoremediator in the waters of Ambon island that have been contaminated with heavy metals Cd.
PHYTOREMEDIATION
This document discusses phytoremediation, which uses plants to remove contaminants from soil, water, or sediment. It describes various phytoremediation processes like phytoextraction, rhizofiltration, phytostabilization, and phytotransformation. Case studies examine using water hyacinth and duckweed to remove heavy metals like cadmium and zinc from wastewater. While low-cost and environmentally friendly, phytoremediation has disadvantages like slow cleanup times and potential for contaminants to enter the food chain. Overall, phytoremediation can play a role in remediating contaminated sites in an ecological and sustainable manner.
Chromium-induced growth inhibition and alteration of biochemical parameters i...
The hydroponically grown plants of Ocimum basilicum L. were exposed to varying levels of K2Cr2O7 (0, 5, 10, 25 -µM). The plants were tested for various morphological and biochemical parameters on 3rd and 5th day after treatment. Chromium (Cr) resulted in reduction of plant length and biomass. The deleterious effects of the hexavalent chromium on O. basilicum were further confirmed by the reductions in chlorophyll a and b contents, soluble protein and while as the free amino acid and proline contents were increased. The study concludes that chromium causes stress in the Ocimum basilicum plants and thus alters various morphological and biochemical parameters. Ruqaya Jabeen"Chromium-induced growth inhibition and alteration of biochemical parameters in Ocimum basilicum L." Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-2 , February 2018, URL: http://www.ijtsrd.com/papers/ijtsrd8329.pdf http://www.ijtsrd.com/chemistry/other/8329/chromium-induced-growth-inhibition-and-alteration-of--biochemical-parameters-in-ocimum-basilicum-l/ruqaya-jabeen
IRJET- Wastewater Treatment using Duckweed and Comparative Study of Cost ...
This study investigated using duckweed (Lemna minor) to treat wastewater from Astamudi Lake in India over seven days. Water quality parameters like pH, dissolved oxygen, COD, BOD, lead, and cadmium were analyzed initially and after treatment. Duckweed increased pH and dissolved oxygen while decreasing COD, BOD, lead, and cadmium, showing its phytoremediation potential. Solar disinfection with lemon juice and neem extract was the most cost-effective disinfection method compared due to chemicals' antimicrobial properties. Duckweed is a promising low-cost wastewater treatment method for removing pollutants and heavy metals.
INTRACANAL IRRIGANTS
Endodontics is blessed with wide range of irrigants. Biomehcanical peparation of root canal system is not only based on shaping the dentinal walls but also on the biological debridement of the canal and periapical region. Irrigation dynamics is the key behind the every successful root canal procedure.
Antifungal activity
1) The document discusses a study on the antifungal activity of silver/silicon dioxide nanocomposites (Ag/SiO2NC) on faba bean plants infected with Botrytis cinerea, the causal agent of chocolate spot disease.
2) Ag/SiO2NC were biosynthesized and characterized, then applied to faba bean plants both infected and uninfected with B. cinerea. Growth parameters, yield, silver content, and ultrastructural features were analyzed and compared.
3) Results showed that Ag/SiO2NC treated infected plants had reduced disease symptoms and higher growth and yield compared to untreated infected plants. Ag/SiO2NC also
Cahpter book 2020.pdf
This document discusses the development of an ex vivo model to study the effects of Didymosphenia geminata, commonly known as rock snot, on freshwater fish cells and gametes. It first reviews D. geminata as an invasive nuisance species found in rivers internationally. It then describes preliminary work maintaining D. geminata in an artificial river system and observing effects on cell lines. The document proposes building upon this to explore chronic effects of contaminated water and extracts on cells. It also reviews maintaining D. geminata viability in the lab and the need for a complete river model to better understand its growth requirements and impacts on aquatic systems.
Cd cr y pb on growth and uptake in typha annotated
This document summarizes a study that investigated the effects of chromium, cadmium, and lead on the growth, metal uptake, and antioxidant capacity of Typha angustifolia (narrow-leaved cattail). The study found that T. angustifolia showed high tolerance to 1 mM concentrations of Cr, Cd, and Pb with no visible toxicity symptoms. Exposure to Cd and Pb increased plant height and biomass, especially in Pb treatment. Cr, Cd, and Pb uptake increased along with increased uptake of nutrients like Ca and Fe. Antioxidant enzyme activities like SOD, POD, CAT, APX, and GPX increased in response to Cr, Cd, and Pb stress
shail sir.pptx
solvents, separation agents, etc.) should be made unnecessary
wherever possible and innocuous when used.
Design for Energy Efficiency: Energy requirements of chemical
processes should be recognized for their environmental and economic
impacts and should be minimized. If possible, synthetic methods
should be conducted at ambient temperature and pressure.
Use of Renewable Feed stocks: A raw material or feedstock should
be renewable rather than depleting whenever technically and
economically practicable.
Reduce Derivatives: Unnecessary derivatization (use of blocking
groups, protection/ deprotection, temporary modification of physical/
chemical processes) should be minimized or avoided if possible,
because such steps require additional reagents and can generate
waste.
Catalysis: Catalytic reagents (as selective as possible) are superior to
stoichiometric reagents.
Design for Degradation: Chemical products should be designed so
that at the end of their function they break down into innocuous
degradation products and do not persist in the environment.
Real-time analysis for Pollution Prevention: Analytical methodologies
need to be further developed to allow for real-time, in-process
monitoring and control prior to the formation of hazardous substances.
Inherently Safer Chemistry for Accident Prevention: Substances and
the form of a substance used in a chemical process should be chosen
to minimize the potential for chemical accidents, including releases,
explosions, and fires.[8]
Green chemistry in day-to-day life
Green Dry Cleaning of Clothes: Perchloroethylene (PERC) is commonly
being used as a solvent for dry cleaning. It is now known that PERC
which contaminates ground water and is a suspected carcinogen.
A technology, known as Micell technology developed by Joseph De
Simons, Timothy Romark, and James McClain made use of liquid CO2
and a surfactant for dry cleaning clothes, thereby replacing PERC. Dry
cleaning machines have now been developed using this technique.
Micell Technology has also evolved a metal cleaning system that uses
CO2 and a surfactant thereby eliminating the need of halogenated
solvents. [9]
Versatile Bleaching Agents: It is common knowledge that paper is
manufactured from wood (which contains about 70% polysaccharides
and about 30% lignin). For good quality paper, the lignin must be
completely removed. Initially, lignin is removed by placing small
chipped pieces wood into a bath of sodium hydroxide (NaOH) and
sodium sulphide (Na2S). By this process about 80-90% of lignin is
decomposed. The remaining lignin was so far removed through
reaction with chlorine gas (Cl2). The use of chlorine removes all the
lignin (to give good quality white paper) but causes environmental
problems. Chlorine also reacts with aromatic rings of the lignin to
produce dioxins, such as 2,3,4-tetrachloropdioxin and chlorinated
furans. These compounds are potential carcinogens and cause
other health problems. These chaloe
Alterations in macro and micronutrient uptake by Jambu (Acmella oleracea (L.)...
Alterations in macro and micronutrient uptake by Jambu (Acmella oleracea (L.)...Open Access Research Paper
The Jambu, an herbaceous plant widely consumed in the Amazon in typical dishes and in natura, is also found in Central America, Asia, and even in Europe. Its behavior when exposed to heavy metals is unknown and, being Cd one of the most phytotoxic metals, the objective is to elucidate how Cd influences nutrient uptake by jambu. The experimental design was entirely randomized with five treatments and six repetitions, in a hydroponic culture system. Four doses of Cd (1, 3, 6 and 9mg/L), plus a control were used. At the end of the experiment, chemical analyses were performed to quantify the content of K, Mg, Ca, Fe, Zn, Mn and Cu in the leaf, stem, inflorescence and root. The results were submitted to ANOVA and regression analysis and show a significant increase in K, Mg and Ca, up to a dose of 6mg/L of Cd. The micronutrients Fe, Zn, Mn and Cu also showed a significant increase in the absorption, until the dose of 6mg/L. The difference in uptake ranged from 23.02% for Cu to 151.9% for Ca in relation to the uptake of the nutrients by the control plants. The dose of 9mg/L, produced an antagonistic effect, with a reduction in the uptake of the nutrients, with the exception of Ca. In general, Cd in small doses produced in the jambu a stimulant effect and in larger doses, a toxic effect. This behavior indicates a hormetic effect of jambu against Cd.
role of nano particles in enhancing the vase life of cut flowers
this gives the information about the role of nanoparticles in enhancing the vase life of cut flower =s along with some case studies
Efficacy of aquatic_plants_for_removal_of_heavy_metals_from_wastewater
Efficacy of aquatic_plants_for_removal_of_heavy_metals_from_wastewaterSSR Institute of International Journal of Life Sciences
ABSTRACT- Wastewater treatment is a problem of grave concern in most developing countries. In the last two decades, there has been a lot of research to develop appropriate technologies to alleviate pollution in water resources. Efficient wastewater treatments through conventional methods are expensive and difficult to get optimum results. Currently, phytoremediation is an effective and affordable solution used to remediate toxic pollutants from aquatic ecosystems. The review describes various aquatic plants, which have high potential to remove heavy metals from wastewater. Key-words- Water pollution, Heavy metals, Phytoremediation, Aquatic plants, Wastewater treatmentChrlorine dioxide inactivation of cryptosporidium parvum oocysts and bacteria...
This study evaluated the inactivation of Cryptosporidium parvum oocysts and bacterial spore indicators by chlorine dioxide. Two viability methods, in vitro excystation and cell culture infectivity assay, produced significantly different results for C. parvum inactivation, suggesting excystation is not an adequate viability assay. Purified oocysts from three suppliers showed marked differences in resistance to chlorine dioxide inactivation. Ct values required for a 2-log inactivation ranged from 75 to 1,000 mg-min/L depending on the oocyst source. Bacterial spores were more sensitive to chlorine dioxide than C. parvum oocysts and could not be used
Similar to Abstract ICMNS 2006 @ITB; Dr. Iriawati&Rina Fitriana, S.Si. (20)
A study on physiological, anatomical characterization of selected carrot plan...
A study on physiological, anatomical characterization of selected carrot plan...
Evaluation of Cadmium tolerant Fungi in the dying Staff and their removal Pot...
Evaluation of Cadmium tolerant Fungi in the dying Staff and their removal Pot...
Physiological Characteristics of Maize under Chelators Induced Phytoextractio...
Physiological Characteristics of Maize under Chelators Induced Phytoextractio...
Bioaccumulation of Cadmium Heavy Metal And its Effect on the Level of Chlorop...
Bioaccumulation of Cadmium Heavy Metal And its Effect on the Level of Chlorop...
Chromium-induced growth inhibition and alteration of biochemical parameters i...
Chromium-induced growth inhibition and alteration of biochemical parameters i...
IRJET- Wastewater Treatment using Duckweed and Comparative Study of Cost ...
IRJET- Wastewater Treatment using Duckweed and Comparative Study of Cost ...
Cd cr y pb on growth and uptake in typha annotated
Cd cr y pb on growth and uptake in typha annotated
Alterations in macro and micronutrient uptake by Jambu (Acmella oleracea (L.)...
Alterations in macro and micronutrient uptake by Jambu (Acmella oleracea (L.)...
role of nano particles in enhancing the vase life of cut flowers
role of nano particles in enhancing the vase life of cut flowers
Efficacy of aquatic_plants_for_removal_of_heavy_metals_from_wastewater
Efficacy of aquatic_plants_for_removal_of_heavy_metals_from_wastewater
Chrlorine dioxide inactivation of cryptosporidium parvum oocysts and bacteria...
Chrlorine dioxide inactivation of cryptosporidium parvum oocysts and bacteria...
Recently uploaded
Wildlife-AnIntroduction.pdf so that you know more about our environment
All about wildlife, if you are fond of animals and wildlife then do follow us for more content like this
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...Open Access Research Paper
Water polluted by dyestuffs compounds is a global threat to health and the environment; accordingly, we prepared a green novel sorbent chemical and Physical system from an algae, chitosan and chitosan nanoparticle and impregnated with algae with chitosan nanocomposite for the sorption of Malachite green dye from water. The algae with chitosan nanocomposite by a simple method and used as a recyclable and effective adsorbent for the removal of malachite green dye from aqueous solutions. Algae, chitosan, chitosan nanoparticle and algae with chitosan nanocomposite were characterized using different physicochemical methods. The functional groups and chemical compounds found in algae, chitosan, chitosan algae, chitosan nanoparticle, and chitosan nanoparticle with algae were identified using FTIR, SEM, and TGADTA/DTG techniques. The optimal adsorption conditions, different dosages, pH and Temperature the amount of algae with chitosan nanocomposite were determined. At optimized conditions and the batch equilibrium studies more than 99% of the dye was removed. The adsorption process data matched well kinetics showed that the reaction order for dye varied with pseudo-first order and pseudo-second order. Furthermore, the maximum adsorption capacity of the algae with chitosan nanocomposite toward malachite green dye reached as high as 15.5mg/g, respectively. Finally, multiple times reusing of algae with chitosan nanocomposite and removing dye from a real wastewater has made it a promising and attractive option for further practical applications.
原版制作(Manitoba毕业证书)曼尼托巴大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(Manitoba毕业证书)曼尼托巴大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Lessons from operationalizing integrated landscape approaches
Presented by James Reed at "9th Landscape Sustainability Science Forum" on 11 May 2024
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
The incorporation of a 3DCSM and completion of HRSC provided a tool for enhanced, data-driven, decisions to support a change in remediation closure strategies. Currently, an approved pilot study has been obtained to shut-down the remediation systems (ISCO, P&T) and conduct a hydraulic study under non-pumping conditions. A separate micro-biological bench scale treatability study was competed that yielded positive results for an emerging innovative technology. As a result, a field pilot study has commenced with results expected in nine-twelve months. With the results of the hydraulic study, field pilot studies and an updated risk assessment leading site monitoring optimization cost lifecycle savings upwards of $15MM towards an alternatively evolved best available technology remediation closure strategy.
Improving the Management of Peatlands and the Capacities of Stakeholders in I...
Improving the Management of Peatlands and the Capacities of Stakeholders in I...Global Landscapes Forum (GLF)
Presented by Sonya Dewi at GLF Peatlands 2024 - 360 Degree Approach to Improving Capacity of Multiple Stakeholders to Manage Peatland Sustainably原版制作(Newcastle毕业证书)纽卡斯尔大学毕业证在读证明一模一样
学校原件一模一样【微信：741003700 】《(Newcastle毕业证书)纽卡斯尔大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Enhanced action and stakeholder engagement for sustainable peatland management
Enhanced action and stakeholder engagement for sustainable peatland managementGlobal Landscapes Forum (GLF)
Presented by Jan Peters at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and ActionMicrobial characterisation and identification, and potability of River Kuywa ...
Microbial characterisation and identification, and potability of River Kuywa ...Open Access Research Paper
Water contamination is one of the major causes of water borne diseases worldwide. In Kenya, approximately 43% of people lack access to potable water due to human contamination. River Kuywa water is currently experiencing contamination due to human activities. Its water is widely used for domestic, agricultural, industrial and recreational purposes. This study aimed at characterizing bacteria and fungi in river Kuywa water. Water samples were randomly collected from four sites of the river: site A (Matisi), site B (Ngwelo), site C (Nzoia water pump) and site D (Chalicha), during the dry season (January-March 2018) and wet season (April-July 2018) and were transported to Maseno University Microbiology and plant pathology laboratory for analysis. The characterization and identification of bacteria and fungi were carried out using standard microbiological techniques. Nine bacterial genera and three fungi were identified from Kuywa river water. Clostridium spp., Staphylococcus spp., Enterobacter spp., Streptococcus spp., E. coli, Klebsiella spp., Shigella spp., Proteus spp. and Salmonella spp. Fungi were Fusarium oxysporum, Aspergillus flavus complex and Penicillium species. Wet season recorded highest bacterial and fungal counts (6.61-7.66 and 3.83-6.75cfu/ml) respectively. The results indicated that the river Kuywa water is polluted and therefore unsafe for human consumption before treatment. It is therefore recommended that the communities to ensure that they boil water especially for drinking.
Global Peatlands Map and Hotspot Explanation Atlas
Presented by Alexandra Barthelmes at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
Epcon is One of the World's leading Manufacturing Companies.
Epcon is One of the World's leading Manufacturing Companies. With over 4000 installations worldwide, EPCON has been pioneering new techniques since 1977 that have become industry standards now. Founded in 1977, Epcon has grown from a one-man operation to a global leader in developing and manufacturing innovative air pollution control technology and industrial heating equipment.
RoHS stands for Restriction of Hazardous Substances, which is also known as t...
RoHS stands for Restriction of Hazardous Substances, which is also known as the Directive 2002/95/EC. It includes the restrictions for the use of certain hazardous substances in electrical and electronic equipment. RoHS is a WEEE (Waste of Electrical and Electronic Equipment).
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
Results of geophysics and pneumatic injection pilot tests during 2003 – 2007 yielded significant positive results for injection delivery design and contaminant mass treatment, resulting in permanent shut-down of an existing groundwater Pump & Treat system.
Accessible source areas were subsequently removed (2011) by soil excavation and treated with the placement of Emulsified Vegetable Oil EVO and zero-valent iron ZVI to accelerate treatment of impacted groundwater in overburden and weathered fractured bedrock. Post pilot test and post remediation groundwater monitoring has included analyses of CVOCs, organic fatty acids, dissolved gases and QuantArray® -Chlor to quantify key microorganisms (e.g., Dehalococcoides, Dehalobacter, etc.) and functional genes (e.g., vinyl chloride reductase, methane monooxygenase, etc.) to assess potential for reductive dechlorination and aerobic cometabolism of CVOCs.
In 2022, the first commercial application of MetaArray™ was performed at the site. MetaArray™ utilizes statistical analysis, such as principal component analysis and multivariate analysis to provide evidence that reductive dechlorination is active or even that it is slowing. This creates actionable data allowing users to save money by making important site management decisions earlier.
The results of the MetaArray™ analysis’ support vector machine (SVM) identified groundwater monitoring wells with a 80% confidence that were characterized as either Limited for Reductive Decholorination or had a High Reductive Reduction Dechlorination potential. The results of MetaArray™ will be used to further optimize the site’s post remediation monitoring program for monitored natural attenuation.
Overview of the Global Peatlands Assessment
Presented by Patrick Scheel at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
Peatland Management in Indonesia, Science to Policy and Knowledge Education
Peatland Management in Indonesia, Science to Policy and Knowledge EducationGlobal Landscapes Forum (GLF)
Presented by Feri Johana at GLF Peatlands 2024 - 360 Degree Approach to Improving Capacity of Multiple Stakeholders to Manage Peatland SustainablyImproving the viability of probiotics by encapsulation methods for developmen...
Improving the viability of probiotics by encapsulation methods for developmen...Open Access Research Paper
The popularity of functional foods among scientists and common people has been increasing day by day. Awareness and modernization make the consumer think better regarding food and nutrition. Now a day’s individual knows very well about the relation between food consumption and disease prevalence. Humans have a diversity of microbes in the gut that together form the gut microflora. Probiotics are the health-promoting live microbial cells improve host health through gut and brain connection and fighting against harmful bacteria. Bifidobacterium and Lactobacillus are the two bacterial genera which are considered to be probiotic. These good bacteria are facing challenges of viability. There are so many factors such as sensitivity to heat, pH, acidity, osmotic effect, mechanical shear, chemical components, freezing and storage time as well which affects the viability of probiotics in the dairy food matrix as well as in the gut. Multiple efforts have been done in the past and ongoing in present for these beneficial microbial population stability until their destination in the gut. One of a useful technique known as microencapsulation makes the probiotic effective in the diversified conditions and maintain these microbe’s community to the optimum level for achieving targeted benefits. Dairy products are found to be an ideal vehicle for probiotic incorporation. It has been seen that the encapsulated microbial cells show higher viability than the free cells in different processing and storage conditions as well as against bile salts in the gut. They make the food functional when incorporated, without affecting the product sensory characteristics.
Peatlands of Latin America and the Caribbean
Presented by The Global Peatlands Assessment: Mapping, Policy, and Action at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
Environment Conservation Rules 2023 (ECR)-2023.pptx
Bangladesh Environment Conservation Rules 2023 (ECR-2023).
在线办理(lboro毕业证书)拉夫堡大学毕业证学历证书一模一样
学校原件一模一样【微信：741003700 】《(lboro毕业证书)拉夫堡大学毕业证学历证书》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Recently uploaded (20)
Wildlife-AnIntroduction.pdf so that you know more about our environment
Wildlife-AnIntroduction.pdf so that you know more about our environment
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Lessons from operationalizing integrated landscape approaches
Lessons from operationalizing integrated landscape approaches
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
Improving the Management of Peatlands and the Capacities of Stakeholders in I...
Improving the Management of Peatlands and the Capacities of Stakeholders in I...
world-environment-day-2024-240601103559-14f4c0b4.pptx
world-environment-day-2024-240601103559-14f4c0b4.pptx
Enhanced action and stakeholder engagement for sustainable peatland management
Enhanced action and stakeholder engagement for sustainable peatland management
Microbial characterisation and identification, and potability of River Kuywa ...
Microbial characterisation and identification, and potability of River Kuywa ...
Global Peatlands Map and Hotspot Explanation Atlas
Global Peatlands Map and Hotspot Explanation Atlas
Epcon is One of the World's leading Manufacturing Companies.
Epcon is One of the World's leading Manufacturing Companies.
RoHS stands for Restriction of Hazardous Substances, which is also known as t...
RoHS stands for Restriction of Hazardous Substances, which is also known as t...
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
Peatland Management in Indonesia, Science to Policy and Knowledge Education
Peatland Management in Indonesia, Science to Policy and Knowledge Education
Improving the viability of probiotics by encapsulation methods for developmen...
Improving the viability of probiotics by encapsulation methods for developmen...
Environment Conservation Rules 2023 (ECR)-2023.pptx
Environment Conservation Rules 2023 (ECR)-2023.pptx
Abstract ICMNS 2006 @ITB; Dr. Iriawati&Rina Fitriana, S.Si.
- 1. CADMIUM TOXICITY ON ROOT GROWTH OF WATER HYACINTH [Eichornia crassipes (Mart.) Solms] Iriawati & Rina Fitriana School of Life Sciences and Technology, Bandung Institute of Technology Jl Ganesa 10, Bandung - INDONESIA ABSTRACT Cadmium (Cd) is a phytotoxic non-essensial heavy metal. It can inhibit growth or even caused cell death. One of the potential plants to accumulate Cd in phytoremediation is water hyacinth. This study observed the effect of Cd on root growth of water hyacinth. Experiments were carried out with water hyacinth, sampled from Cikole Village, Bandung – West Java. Water hyacinth were washed and cultured in the basket containing 5 L tap water. After 3 weeks acclimatization, those plants were treated with either 0.25 ppm; 0.50 ppm; 0.75 ppm or 1.00 ppm CdCl2 for 12 days. Assays and analysis were taken in four days intervals on Cd content on root, and radial – sectioned roots. Quantitative analysis of sectioned roots was conducted on hypodermal cell layers number, hypodermal and cortical thickness, root and stele diameter, as well as cortical cell layers number. The results showed that root could absorb and accumulate Cd. As many as 1088,466 mg Cd/kg dry weight was found in root of 1.00 ppm treated plant after 12 days of culture. However, cadmium toxicity in root was also observed in this 1.00 ppm treated plants. It was indicated by the reduction of hypodermal cell layers number and thickness, cortical cell layers number and Cd accumulation rate on root. Lower concentration of Cd used did not significantly affect root growth. As conclusion, water hyacinth can tolerate cadmium up to 0.75 ppm of CdCl2 and cadmium toxicity symptom in root was detected after water hyacinth exposed to 1.00 ppm.