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1) The document discusses using the diatom Phaeodactylum tricornutum to remove nitrate from brine water produced during drinking water purification through anion exchange columns. 2) Experiments were conducted to optimize nutrient formulation for biomass production of P. tricornutum and to characterize its acclimation response over 8 weeks to nutrient surplus and deficit conditions. 3) Results from growth rate, doubling time, and substrate coefficient experiments along with proteomic and gene expression studies were used to model a bioprocess using P. tricornutum to recover nutrients from brine waste and produce algal biomass.
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Rebecca Nelson and John Pade created the Aquaponics Journal 10 years ago and have provided a valuable service by advancing the aquaponics industry through their publication. To celebrate their achievement, the author compiled 10 important guidelines for aquaponic systems, including using a feeding rate ratio for design calculations, keeping feed input relatively constant, supplementing with calcium, potassium and iron, ensuring good aeration, removing solids, being careful with aggregates, oversizing pipes, using biological pest control, ensuring adequate biofiltration, and controlling pH.
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Uptake of pharmaceuticals by sorbent-amended struvite fertilisers recovered f...
Uptake of pharmaceuticals by sorbent-amended struvite fertilisers recovered f...
IRJET - Algal Bioreactor for the Removal of Pollution Parameter from Sugar Mi...
IRJET - Algal Bioreactor for the Removal of Pollution Parameter from Sugar Mi...
Water quality management in aquaculture production system aqc 601
Water quality management in aquaculture production system aqc 601
Microbial Flocs Spare Protein In White Shrimp Diets
Microbial Flocs Spare Protein In White Shrimp Diets
Treatment of sludge and reclaimed wastewater polluted with emerging contaminants
Treatment of sludge and reclaimed wastewater polluted with emerging contaminants
Pond preparation and biosecurity for shrimp culture
Pond preparation and biosecurity for shrimp culture
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Integrated Constructed Wetland for Wastewater Treatment, Rainwater Harvesting...
Integrated Constructed Wetland for Wastewater Treatment, Rainwater Harvesting...Quarry Life Award by HeidelbergCement
There is an intrinsic connection between biodiversity conservation, water and sanitation. With appropriate technologies, wastewater can be treated to produce fit-for-purpose water with recovery of nutrients to enhance biodiversity conservation in terms of flora and fauna. This project highlights a pilot subsurface flow Constructed Wetland unit in order to identify its performance in treating domestic wastewater and in recovering nutrients.
The project won the 1st Prize in National Quarry Life Award in 2012 in Tanzania.
Read more: http://www.quarrylifeaward.com/project/integrated-constructed-wetland-wastewater-treatment-rainwater-harvesting-nutrient-recoveryIjetr011833
ER Publication,
IJETR, IJMCTR,
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High Impact Journals,
Monthly Journal,
Good quality Journals,
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Research Papers,
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erpublication.org,
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vanamei-RAS
This document discusses management and design considerations for producing shrimp in recirculating aquaculture systems. It outlines three main types of management regimes - chemoautotrophic, heterotrophic, and photoautotrophic - that differ in how they remove ammonia and utilize organic matter. Chemoautotrophic systems rely solely on nitrifying bacteria but do not support shrimp growth well. Heterotrophic systems use heterotrophic bacteria to remove ammonia and produce organic flocs to feed shrimp, allowing lower protein feeds. Photoautotrophic systems use algae but experience unstable swings that can stress shrimp. Design must account for the type of organic matter production and removal needed to support shrimp nutrition.
waste water treatment through Algae and Cyanobacteria
Use of algae in wastewater treatment. Recently, algae have become significant organisms for biological purification of wastewater since they are able to accumulate plant nutrients, heavy metals, pesticides, organic and inorganic toxic substances and radioactive matters in their cells/bodies.
Energy paper IJTR
This document summarizes a study that cultivated the microalgae Chlorella vulgaris in liquor from chemically treated sewage sludge to produce biomass for anaerobic digestion and energy generation. Four types of sludge liquor media were tested: a control with polyelectrolyte (sample 1), two with different lime concentrations (samples 2 and 3), and one with ferric chloride (sample 4). C. vulgaris grew best in sample 1 liquor, producing 1.36 kg/m3 of biomass and providing the highest estimated energy generation of 3.07 kWh and economic value of £1.12 per cubic meter after anaerobic digestion. Samples 2 and 3 performed similarly while sample 4 supported
Phytoremediation
Phytoremediation uses plants to remove, transfer, stabilize, or destroy contaminants in soil, sediment, surface water and groundwater. It involves processes such as phytoextraction, rhizofiltration, phytostabilization, phytodegradation, rhizodegradation, phytovolatilization, and phytohydraulics. Genetic engineering approaches can be used to enhance plants' natural abilities to remediate contamination. While phytoremediation is more environmentally friendly than traditional methods, it also has disadvantages such as being a slower process and potential risks if contaminants are released back into the environment.
The role of bioremediation in water quality management
With the expansion and development of the aquaculture industry, several challenges arise. The intensification of production systems increases the pressure on the environment, which can severely affect water quality and as a consequence fish or shrimp performance and the incidence of diseases.
Performance of Fluidized Bed Biofilm Reactor for Nitrate Removal
Nitrate is present in the majority of water resources, and has reached serious level in many parts of the world, which is responsible for environmental problems. Hence it is necessary to remove nitrate. Biological denitrification provides the most economical means for nitrate removal. This paper represents the performance of Fluidized Bed Biofilm Reactor (FBBR) using bone china fine granules as biofilm carrier media for biological denitrification.
In this experimental work, the maximum average nitrogen removal efficiency of 93.71% at HRT of 30 minutes and optimum efficiency of 88.13% at HRT of 10 minutes is observed. For nitrogen loading rates varying from 0.48 to 28.80 kg N m-3 d-1, denitrification rates observed are 0.44 kg N m-3 d-1 to 17.26 kg N m-3 d-1. Optimum nitrogen loading rate and denitrification rate observed are 10.08 kg N m-3 d-1 and 8.88 kg N m-3 d-1 respectively. The results justify the usefulness of FBBR for denitrification.
Pollutants-in-aquaculture-water and soil quality in aquaculture
Pollutants of Concern for Aquaculture
Pollutants of concern often associated with aquaculture include: Total suspended solids, settleable solids. Biological wastes (metabolic waste, unconsumed feed) Floating and submerged matter
Effect of inoculation of nitrogen fixer A. Chroococcum Mac -27 and phosphate ...
Excessive use of manures and inorganic fertilizers in fish culture ponds for enhancing primary productivity has led to the deterioration of water quality which adversely affects fish growth, survival and production.
Effect of inoculation of nitrogen fixer A. Chroococcum Mac -27 and phosphate ...
Excessive use of manures and inorganic fertilizers in fish culture ponds for enhancing primary productivity has led to the deterioration of water quality which adversely affects fish growth, survival and production.
combat pollution and to reduce the excessive use of organic/inorganic fertilizers for sustaining the production system and also for assuring food security, it had become a necessary to apply newer techniques and technology that will facilitate the culture of aquatic organism without adversely affecting the pond ecology.
Therefore,attemts have been made to utilize microbial bioinoculants such as Azotobacter which is free living diazotroph in freshwater fish culture ponds to enhance pond productivity and production
High Rate of Water Biodenitrification Using Anthracite as Hyphomicrobium Deni...
Pure culture of Hyphomicrobium denitrificans DSM 1869 was immobilized on anthracite and utilized for biological denitrification in 50-ml flasks employing methanol and acetic acid as carbon source. The results demonstrate that acetic acid was a suitable carbon source for H. denitrificans to remove high nitrate concentrations. The maximum denitrification rate was 233.1 mg NO3-N/g MLSS.h and the highest NO3-N removal efficiency was obtained when using C/N ratio of 4.0 and acetic acid as the carbon source. C/N ratio can significantly affect denitrification in different operational conditions. The low C/N ratios did not allow the denitrification process to be completed in case of high NO3-Nconcentrations. High C/N ratio increased the rate of nitrate conversion when using acetic acid as a carbon source; but added a pollutant to denitrified water when using methanol as a carbon source. The results demonstrated that H. denitrificans was a suitable bacterium for denitrifying high NO3-N concentrations.
Phycoremediation of malachite green and reduction of physico chemical paramet...
Abstract
Water is the elixir of life, a precious gift of nature to all the living species on earth. It is rapidly becoming a scare commodity in most parts of the world. Only 0.35% of the total availability of water found in lakes and wetlands and 0.01% in rivers and streams which are likely getting depleted due to the discharge of the effluents such as dyes simultaneously increases the water quality parameters. Malachite green is a common textile dye being discharged in lake water situated near textile industries. The phycoremediation method employs the use of algae, say, Chlorella pyrenoidosa which helps in decolorizing the water and due to its growth in the lake water, the physico-chemical parameters higher in the polluted water found to be reduced and water can be used for various purposes. The trails were made using Chlorella pyrenoidosa and Malachite green at different concentrations. The optimum concentration for the degradation of dye was completely done at the concentration 15 mg confirming the decolorization capacity by Chlorella pyrenoidosa. The same experiment was performed with adjusting the pH at 6, 7 and 8. Optimum pH for the dye degradation was found as pH 7 at which all the concentrations Chlorella pyrenoidosa was able to degrade the dye with the decolourization capacity of above 95%. The phyico-chemical parameters checked after the decolorization by Chlorella were found to be within the limits and thus Chlorella which is available in nature can be used in the decolorization of effluent water by eco-friendly method.
Keywords: Chlorella pyrenoidosa, Malachite Green, Phycoremediation, Physico-chemical parameters
Development of integrated bioremediation and anaerobic digestion process using
This document discusses a study on the development of an integrated bioremediation and anaerobic digestion process using microalgae. Specifically, it examines using the microalgae Chlorella pyrenoidosa to treat biogas digester wastewater. The study finds that C. pyrenoidosa is able to grow well in biogas wastewater, removing up to 92.8% of nitrate nitrogen. The treated wastewater can then be used to support anaerobic digestion of the algal biomass to produce biogas. Co-digesting the microalgae with cow dung achieved higher biogas yields than digesting cow dung alone. Overall, the integrated process effectively treats biogas
FINAL PROJECT REPORT
This document discusses using algae for wastewater treatment. It begins by noting that most of India's cities lack proper sewage treatment, polluting water sources. Algae-based treatment offers advantages over conventional methods like lower costs, energy requirements, and sludge production. It can also produce useful algal biomass. The objective is to evaluate two algae species, Chlorella and Scenedesmus, for removing nutrients from municipal wastewater. If effective, algae cultivation could replace or enhance conventional treatment while providing biomass for products like biodiesel.
Investigation of the effect of initial biomass on nitrate and phosphate remov...
This study investigated the effect of initial biomass concentration on the ability of four bacterial species
(Klebsiella sp., Pseudomonas sp., Lysinibacillus sp., and Staphylococcus sp.) to remove nitrate and phosphate from synthetic wastewater. The bacteria were inoculated at different concentrations and their ability to remove nutrients was measured over 96 hours. All isolates significantly removed nitrate except Lysinibacillus sp., removing between 68-91% nitrate. Phosphate removal was slight. The study revealed the nutrient removal abilities of the isolates at different initial biomass concentrations.
Aquaponics Innovative Farming
This document describes an aquaponics system that combines aquaculture and hydroponics. In aquaponics, nutrient-rich waste from fish tanks fertilizes hydroponically grown plants. The plants act as a natural biofilter, removing toxins from the water which is then recirculated back to the fish tanks. The document discusses the design of various aquaponics systems, including factors like water quality maintenance, suitable crops, fish and plant stocking densities, and feeding. The integrated aquaponics system aims to provide a sustainable solution for food production while minimizing environmental impact.
IRJET- Water Treatment using Natural Coagulants
This document summarizes a study on using natural coagulants for water treatment. It discusses using seeds from chickpeas, nutmeg, and sesame to reduce turbidity in water. The document describes preparing stock solutions of the natural coagulants by grinding the seeds into fine powders. Jar tests were then conducted by adding the coagulant solutions to synthetically turbid water created by adding clay to tap water. The results found that a 3% solution of ground sesame seeds was most effective at reducing turbidity, making sesame seeds the best performing natural coagulant investigated in the study for household water treatment applications.
Phycoremediation of malachite green and reduction of physico chemical paramet...
Phycoremediation of malachite green and reduction of physico chemical paramet...eSAT Publishing House
1. The document discusses using the algae Chlorella pyrenoidosa to remediate polluted water contaminated with the textile dye malachite green.
2. Experiments were conducted with different concentrations of malachite green and Chlorella pyrenoidosa to determine the optimal levels for decolorization. The dye was completely degraded at a concentration of 15 mg/L with Chlorella.
3. Additional experiments adjusting the pH found that pH 7 was optimal for dye degradation, with Chlorella able to degrade the dye at over 95% efficiency across all concentrations tested.Training Material on Composting and Vermicomposting
This document provides training material on composting and vermicomposting. It discusses the impact of current sanitation practices, the differences between chemical and organic fertilizers, and various biological degradation processes like anaerobic digestion, aerobic digestion, composting, and vermicomposting. It also addresses factors that affect composting like carbon-nitrogen ratio, moisture, temperature, aeration, surface area, and pH. The document aims to educate on converting human waste into organic fertilizer through appropriate treatment methods.
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Integrated Constructed Wetland for Wastewater Treatment, Rainwater Harvesting...
Integrated Constructed Wetland for Wastewater Treatment, Rainwater Harvesting...
waste water treatment through Algae and Cyanobacteria
waste water treatment through Algae and Cyanobacteria
The role of bioremediation in water quality management
The role of bioremediation in water quality management
Performance of Fluidized Bed Biofilm Reactor for Nitrate Removal
Performance of Fluidized Bed Biofilm Reactor for Nitrate Removal
Pollutants-in-aquaculture-water and soil quality in aquaculture
Pollutants-in-aquaculture-water and soil quality in aquaculture
Effect of inoculation of nitrogen fixer A. Chroococcum Mac -27 and phosphate ...
Effect of inoculation of nitrogen fixer A. Chroococcum Mac -27 and phosphate ...
Effect of inoculation of nitrogen fixer A. Chroococcum Mac -27 and phosphate ...
Effect of inoculation of nitrogen fixer A. Chroococcum Mac -27 and phosphate ...
High Rate of Water Biodenitrification Using Anthracite as Hyphomicrobium Deni...
High Rate of Water Biodenitrification Using Anthracite as Hyphomicrobium Deni...
Phycoremediation of malachite green and reduction of physico chemical paramet...
Phycoremediation of malachite green and reduction of physico chemical paramet...
Development of integrated bioremediation and anaerobic digestion process using
Development of integrated bioremediation and anaerobic digestion process using
Investigation of the effect of initial biomass on nitrate and phosphate remov...
Investigation of the effect of initial biomass on nitrate and phosphate remov...
Phycoremediation of malachite green and reduction of physico chemical paramet...
Phycoremediation of malachite green and reduction of physico chemical paramet...
Training Material on Composting and Vermicomposting
Training Material on Composting and Vermicomposting
Abstract_VST
- 1. Media optimisation studies and characterisation of nitrate uptake rate acclimation response in Phaeodactylum tricornutum from a bioremediation perspective Víctor Sánchez Tarré1, Matthew Davey2, Louisa Norman2, Brenda Parker1 1 Department of Biochemical Engineering, University College London 2 Department of Plant Sciences, University of Cambridge Drinking water purification plants utilise anion exchange columns to remove nitrate in order to meet criteria for safe supply. The waste by-product from column regeneration is brine water with an elevated nitrate concentration. Disposal of the brine without treatment is undesirable as it increases the burden on wastewater treatment and represents a loss of valuable nutrients. Phaeodactylum tricornutum is a diatom that can tolerate higher levels of nitrate than normally present in growth media. We wish to exploit this feature for bioremediation of the concentrated brine wash waste stream. Culturing Phaeodactylum in 24 well plates, we have utilised DoE techniques to optimise nutrient formulation for optimised biomass production. Additionally, we have studied Phaeodactylum’s acclimation response to nutrient surplus and deficit over the course of 8 weeks. By looking at the change in maximum growth rate (μmax), doubling time (td) and substrate coefficient (Ks) for NO3- in F/8, F/2 (control) and 2F media, we have characterised acclimation to different nutrient environments. To support these results, proteomic studies and qPCR experiments have been performed to understand patterns in gene expression over the prolonged exposure under different nutrient regimes. Combining experimental results with values extracted from the relevant literature, we have modelled a bioprocess using Phaeodactylum to recover valuable nutrients from brine waste and to produce value added algal biomass. This research lays the groundwork for further media optimisation alongside examination of nitrate removal efficiency studies under UK conditions.