Bioremediation
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Bioremediation, principle and types
This document discusses bioremediation, which uses living organisms like microbes and plants to break down and consume environmental pollutants. It can be done through microbial remediation using intrinsic or engineered microbes, or phyto-remediation using plants. Methods include in-situ techniques like bioventing and biosparging as well as ex-situ ones like biopiles and landfarming. While bioremediation is natural and can control pollution, it is limited to biodegradable wastes and specific processes, and ex-situ methods may disperse pollutants.
Bioremediation
This document discusses bioremediation, which uses microorganisms to remove pollution from soil, water, and air. There are two types of bioremediation - in situ, which treats pollution at the site, and ex situ, which treats pollution off site. In situ bioremediation can be intrinsic, using native microbes, or engineered, by adding nutrients or microbes. Ex situ involves removing contaminated material and treating it through methods like slurry phase bioremediation, which mixes soil and water, or solid phase bioremediation using land farming or piles. Bioremediation is effective but performance is difficult to evaluate and volatile organic compounds remain challenging to degrade.
Bioremediation
• Bioremediation – process of cleaning up environmental sites contaminated with chemical pollutants by using living organisms to degrade hazardous materials into less toxic substances
Bioremediation
xenobiotic compounds, recalcitrant compounds, Halocarbons
Polychlorinated biphenyls (PCB), Synthetic polymers, Alkyl benzyl sulphonate, Oil mixture, biodegradation, biosaparging, bioventing, biostimulation, in - situ bioremediation, ex - situ bio remediation , intrinsic and extrinsic bioremediation, bioremediation of heavy metals, pesticides, oil spills, plastic
Intrinsic in Situ Bioremediation
This document discusses intrinsic in situ bioremediation. It explains that intrinsic bioremediation uses microorganisms already present in the environment to degrade contaminants, requiring no human intervention and being the cheapest form of bioremediation. Intrinsic bioremediation is tested at the lab and field levels before use to assess the microorganisms' ability to metabolize contaminants. Factors like moisture, pH, temperature, nutrients, electron acceptors, and toxin concentration affect the rate of intrinsic bioremediation. In situ bioremediation cleans up contaminated sites directly where pollution occurred, with options like biostimulation or bioaugmentation. It has advantages of being cost-effective with minimal exposure but
A Recent Technique for Contaminated Soils: Bioremediation
This document discusses bioremediation techniques for cleaning up contaminated soils. It defines bioremediation as using microorganisms, fungi or plants to restore a natural environment impacted by pollution. Methods include stimulating indigenous bacteria to break down oil spills or other contaminants, and augmenting soils with bacteria to degrade pollutants. Bioremediation can occur in situ or ex situ and examples provided are bioventing and phytoremediation using plants to extract heavy metals. The advantages highlighted are lower costs than traditional methods while preserving the natural environment.
In Situ Bioremediation;Types, Advantages and limitations
In situ bioremediation uses microorganisms to treat hazardous waste in place, without removing the contaminated material. It can be applied in both the unsaturated zone (e.g. bioventing) and saturated zones (groundwater). Intrinsic bioremediation relies on naturally occurring microbes, while engineered approaches accelerate degradation by supplying oxygen, nutrients, or other stimulants. Successful in situ bioremediation is evidenced by measuring increased microbial activity, growth of degrading populations, and production of degradation byproducts at the site.
Microbes in bioremediation
This ppt contains all types of Microbial Bioremediation methods . Everyone can understand clearly . Explaining with neat pictures and animation . Useful for presentation about Microbes in bioremediation . At last it contains a small animated video which helps to get clear view .
Recommended
Bioremediation, principle and types
This document discusses bioremediation, which uses living organisms like microbes and plants to break down and consume environmental pollutants. It can be done through microbial remediation using intrinsic or engineered microbes, or phyto-remediation using plants. Methods include in-situ techniques like bioventing and biosparging as well as ex-situ ones like biopiles and landfarming. While bioremediation is natural and can control pollution, it is limited to biodegradable wastes and specific processes, and ex-situ methods may disperse pollutants.
Bioremediation
This document discusses bioremediation, which uses microorganisms to remove pollution from soil, water, and air. There are two types of bioremediation - in situ, which treats pollution at the site, and ex situ, which treats pollution off site. In situ bioremediation can be intrinsic, using native microbes, or engineered, by adding nutrients or microbes. Ex situ involves removing contaminated material and treating it through methods like slurry phase bioremediation, which mixes soil and water, or solid phase bioremediation using land farming or piles. Bioremediation is effective but performance is difficult to evaluate and volatile organic compounds remain challenging to degrade.
Bioremediation
• Bioremediation – process of cleaning up environmental sites contaminated with chemical pollutants by using living organisms to degrade hazardous materials into less toxic substances
Bioremediation
xenobiotic compounds, recalcitrant compounds, Halocarbons
Polychlorinated biphenyls (PCB), Synthetic polymers, Alkyl benzyl sulphonate, Oil mixture, biodegradation, biosaparging, bioventing, biostimulation, in - situ bioremediation, ex - situ bio remediation , intrinsic and extrinsic bioremediation, bioremediation of heavy metals, pesticides, oil spills, plastic
Intrinsic in Situ Bioremediation
This document discusses intrinsic in situ bioremediation. It explains that intrinsic bioremediation uses microorganisms already present in the environment to degrade contaminants, requiring no human intervention and being the cheapest form of bioremediation. Intrinsic bioremediation is tested at the lab and field levels before use to assess the microorganisms' ability to metabolize contaminants. Factors like moisture, pH, temperature, nutrients, electron acceptors, and toxin concentration affect the rate of intrinsic bioremediation. In situ bioremediation cleans up contaminated sites directly where pollution occurred, with options like biostimulation or bioaugmentation. It has advantages of being cost-effective with minimal exposure but
A Recent Technique for Contaminated Soils: Bioremediation
This document discusses bioremediation techniques for cleaning up contaminated soils. It defines bioremediation as using microorganisms, fungi or plants to restore a natural environment impacted by pollution. Methods include stimulating indigenous bacteria to break down oil spills or other contaminants, and augmenting soils with bacteria to degrade pollutants. Bioremediation can occur in situ or ex situ and examples provided are bioventing and phytoremediation using plants to extract heavy metals. The advantages highlighted are lower costs than traditional methods while preserving the natural environment.
In Situ Bioremediation;Types, Advantages and limitations
In situ bioremediation uses microorganisms to treat hazardous waste in place, without removing the contaminated material. It can be applied in both the unsaturated zone (e.g. bioventing) and saturated zones (groundwater). Intrinsic bioremediation relies on naturally occurring microbes, while engineered approaches accelerate degradation by supplying oxygen, nutrients, or other stimulants. Successful in situ bioremediation is evidenced by measuring increased microbial activity, growth of degrading populations, and production of degradation byproducts at the site.
Microbes in bioremediation
This ppt contains all types of Microbial Bioremediation methods . Everyone can understand clearly . Explaining with neat pictures and animation . Useful for presentation about Microbes in bioremediation . At last it contains a small animated video which helps to get clear view .
Bioremediation - prospects for the future application of innovative applied
1) Bioremediation uses biological processes to eliminate, attenuate, or transform polluting substances. Traditional techniques like biopiling and landfarming rely on microbial degradation of contaminants in soil. Phytoremediation uses plants and their rhizospheres to uptake or degrade contaminants.
2) Phytobial remediation combines phytoremediation and bioremediation by using microbes like Trichoderma harzianum colonized in plant roots to efficiently degrade toxicants while providing an energy source from plant root exudates.
3) Initial experiments found T. harzianum could detoxify cyanides and metallocyanides in soil, allowing plant
bioremediation
This document discusses bioremediation, which is a process that uses microorganisms or plant enzymes to treat contaminated media like water or soil. There are two main types of bioremediation: in-situ, which remediates contamination at the site, and ex-situ, which treats contaminated materials after removing them from the site. Selection of bioremediation technologies depends on factors like the type of microorganisms, pollutant concentration, environment, and nutrient availability. Common in-situ technologies include biostimulation, bioaugmentation, bioventing, and biosparging.
introduction to Bioremediation and its type
introduction to bioremediation and its type i.e., insitu and exsitu
Bioremediation clean environment
Bioremediation uses microorganisms like bacteria and fungi to degrade contaminants in soil and water. It works by stimulating natural microbial activity to break down harmful pollutants into harmless substances. Various technologies can be used including treating excavated soil in biopiles or bioreactors, injecting nutrients and oxygen into contaminated groundwater and soil, and planting vegetation that helps remove toxins from the environment. The microbes metabolize the pollutants for food and energy through aerobic or anaerobic processes, transforming contaminants into less toxic or non-toxic forms.
Bioremediation
This document discusses bioremediation, which uses microorganisms to degrade environmental pollutants. It defines bioremediation and describes how it works to break down hazardous substances. There are three main types of bioremediation: biostimulation adds nutrients to stimulate microbial growth; bioaugmentation adds microbes to degrade specific contaminants; and intrinsic bioremediation relies on natural attenuation. Methods of bioremediation include in-situ and ex-situ approaches. In-situ techniques like bioventing treat pollution on-site, while ex-situ methods involve removing material to above-ground bioreactors for treatment. Bioremediation has applications in controlling water, soil and air
Bioremediation by shoyeb, GEBT, JUST
This document provides an overview of bioremediation presented by Md. Shoyeb. It defines bioremediation as using organisms or their enzymes to return polluted environments to their original condition. The mechanisms, principles, strategies (in situ and ex situ), types (bioventing, biosparging, bioaugmentation), advantages and disadvantages are summarized. Key contaminants amenable to bioremediation are identified along with persistent pollutants that are difficult to degrade.
Enzymes and their roles in the bioremediation
This document discusses bioremediation and the enzymes used in the process. It begins with background information on bioremediation and enzymes. Major enzymes that aid in bioremediation are then outlined, including peroxidases, oxygenases, and dioxygenases. An example is given of lignin peroxidase and its effectiveness in bioremediating pollutants. The advantages of bioremediation include it being relatively inexpensive and allowing toxic waste to naturally break down. Limitations include difficulty controlling bacteria and potential to spread illness. In conclusion, bioremediation offers a safer, more cost-effective cleaning method for contaminated sites.
Role of Bioremediation in Environment
Bioremediation is the process in which the micro-organisms are used to degrade the pollutants from the environment. Plants and micro-organisms are used to clean up the environment. Bioremediation is carried out by microbes and their metabolisms are used to remove the contaminants. Microbes have the ability to resolve the issue of contaminated ecosystem1. To improve or better living style the degradation of contaminated areas is very important. Importance of the biodegradation is increasing due to the expensiveness of the chemicals. So bioremediation is the best choice. The effluents should be degraded from the environment because they are very dangerous and have a bad impact on human beings. These pollutants sink into the water and cause pollution. These pollutants are treated with the help of microbes in bioremediation process. It is the best method because it is cost effective and eco-friendly. Different techniques of bioremediation are used to convert toxic substances into less toxic substances.
In Situ Bioremediation
Bioremediation is the use of microorganisms (e.g., bacteria, fungi), plants (termed phytoremediation), or biological enzymes to achieve treatment of hazardous waste. Treatment can target a variety of media (wastewater, groundwater, soil/sludge, gas) with several possible objectives (e.g., mineralization of organic compounds, immobilzation of contaminants). In situ bioremediation (ISB) is the application of bioremediation in the subsurface – as compared to ex situ bioremediation, which applies to media readily accessible aboveground (e.g., in treatment cells/soil piles or bioreactors). In situ bioremediation may be applied in the unsaturated/vadoze zone (e.g., bioventing) or in saturated soils and groundwater (Sharma S. 2012).
Bioremediaion
The document discusses bioremediation techniques for treating fish processing waste. It provides background on the large quantities of solid waste and wastewater generated by fish processing plants. Both aerobic and anaerobic bioremediation techniques can be used, including intrinsic and accelerated bioremediation which use indigenous or added microorganisms. Specific in situ techniques mentioned are bioventing, biostimulation, and bioaugmentation. Essential factors for effective microbial bioremediation include suitable microbial populations, oxygen, water, nutrients, temperature, and pH. Bioremediation is seen as a cost effective and environmentally friendly way to treat fish processing waste and other pollutants.
Seminar presentation
This is the brief description of the boiremediation esp. phytoremediation. May be helpful for the learners.
Phytoremediation
Phytoremediation is defined as the use of higher plants for the cost-effective, environmentally friendly rehabilitation of soil and groundwater contaminated by toxic metals and organic compounds.
Dissertation ppt biostimulation- a potential practice for wastewater treaat...
Phycoremediation is a green technology that supports the direct use of living green microalgae for in situ, or in place removal, degradation, of contaminants in soils, sludge, sediments, surface water and ground waters by the mechanisms of bio-transformation, bio-accumulation, bio-concentration, bio-sparging.
It can be said by the current study that microalgae has a great potential for the treatment of industrial and municipal wastewaters as compared to the chemical treatments available commercially. Biological systems are much more efficient in cleaning the excess nutrients from the waste water followed by generation of valuable biomass which can be applied in the food, fertilizer, energy production as use of inorganic chemicals like lime and ferrous sulphate generates huge amount of sludge in textile industries, but on the other hand static anaerobic treatment using acclimatized MLSS gives better colour reduction with zero sludge generation. Microalgal cells can be used in free form to treat waste waters containing high C.O.D., high ammonical nitrogen and high TDS. It not only provides a better reduction of chemicals from wastewaters but it also helps to reduce the operational cost of ETP. Microalgaes not only helps to remediate industrial waste waters but also to treat sweage water and to restore natural water bodies like lakes and ponds. As they are active in remediating the chemicals but also it shows an antagonistic effect against some pathogenic germs like total coliforms and fecal coliforms.
These microalgal cells can also be combined with bacterial biomass of activated sludge process to develop an Algal-Bacterial consortium (ALBA) for better enhancement in the reduction of chemicals from the wastewaters as this symbiotic relation of algae and bacteria provides high satiability of the microalgae along with MLSS and faceable in terms of price and economy for instance the bacterial biomass provides carbon dioxide to algal cells for photosynthesis and in return the bacteria acquires oxygen from algae. The harvested biomass from the ETP’s can be used as bio-fertilizers as it consists of appropriate ratio of vital macro and micro nutrients like N,P,K etc. which enhance the growth of plantlets. It can also be used as aqua feeds for shrimps, fishes and molluscs. Furthermore these microlgal cells are non-toxic in the environment as it becomes a part of food chain and do not cause eutrophication. Therefore, micro-algal based treatment is most suitable for the treating the waste waters and restoring the natural water bodies as compared to other chemical treatments.
Bioremediation
•Introduction of bioremediation: Bioremediation refers to the process of using microorganisms to remove the environmental pollutants i.e. toxic wastes found in soil, water, air etc.
•In situ bioremediation:
It involves a direct approach for the microbial
degradation of xenobiotics at the sites of pollution
(soil, ground water).
•Types of in situ bioremediation:
Natural attenuation.
Engineered in situ bioremediation.
- Bioventing, biosparging, bioslurping,
phytoremediation.
•Ex situ bioremediation:
Waste or toxic pollutants can be collected from the polluted sites and bioremediation can be carried out at a designated place or site.
• Types of ex situ bioremediation
Land farming, windrow, biopiles, bioreactors.
•Microorganisms use in bioremediation:
A number of naturally occurring marine microbes
such as Pseudomonas sp. is capable of degrading oil and other hydrocarbons.
•Factors affecting bioremediation:
Nutrient availability, moisture content, pH, temperature, contaminant availability.
•References:
Satyanarayana U. Biotechnology. BOOKS AND ALLIED (P) Ltd.
Sharma P.D. Environmental Microbiology. RASTOGI PUBLICATIONS.
Gupta P.K. Biotechnology and Genomics. RASTOGI PUBLICATIONS.
Dubey R.C. A Textbook of Biotechnology. S Chand And Company Ltd.
Dubey R.C. A Textbook of Microbiology. S Chand And Company Ltd.
Willey/Sherwood/Woolverton. Prescott’s Microbiology. McGRAW-HILL INTERNATIONAL EDITION.
www.sciencedirect.com/bioremediation.
Bioremediation.
The document discusses bioremediation, which uses microorganisms to degrade environmental pollutants. It describes different types of bioremediation including in situ and ex situ methods. In situ bioremediation occurs on-site and can be intrinsic or engineered, while ex situ involves removing contaminated material for treatment using methods like land farming, composting, or biopiles. The document also outlines factors influencing bioremediation and lists some advantages and limitations.
Bioremediation and phytoremediation 45
there is no planet B,So save the earth.this planet is polluted by mankind so its our responsibility to save our land.
Bioremediation
This document provides information about bioremediation. It begins with an introduction defining bioremediation as using microorganisms to degrade hazardous chemicals into less toxic forms. It then discusses the types of microorganisms involved, including Pseudomonas genus and Xenobiotics-degrading microorganisms. Several examples of pollutants and degrading microorganisms are given. The mechanisms of bioremediation include aerobic and anaerobic transformations such as respiration, fermentation, and methane fermentation. Factors affecting bioremediation like moisture, nutrients, oxygen levels, pH, temperature, and pollutant characteristics are outlined. Methods of bioremediation include in-situ and ex-situ techniques
Techniques for bioremediation
Bioremediation uses microorganisms to break down hazardous substances into less toxic forms. There are two main techniques: in-situ treats contaminated soil and groundwater in place without excavation, while ex-situ excavates soil prior to treatment using methods like biopiles, bioreactors, land farming, and windrows that optimize conditions for microorganisms. The document discusses various enhanced bioremediation methods for both in-situ and ex-situ treatment.
Describe Bioremediation
composting, elimination, rhizofiltration, landfarming, bioaugmentation, bioreactors, what is bioremediation
Bioremediation.
The document discusses bioremediation, which uses microorganisms to break down environmental pollutants and clean contaminated sites. It describes different types of bioremediation including microbial remediation, which uses bacteria and fungi, and phytoremediation, which uses plants. The goals, methods, applications, advantages and limitations of bioremediation are summarized. Key bioremediation techniques mentioned are bioventing, land-farming, bioaugmentation, and biopiles.
Bioremediation
This document discusses bioremediation, which uses microorganisms like bacteria and fungi to degrade environmental pollutants. It defines bioremediation and describes how it works by stimulating existing microbes or adding specialized microbes. The key factors for effective bioremediation like nutrients, water, oxygen and temperature are outlined. In-situ and ex-situ bioremediation methods are compared, and applications to treat soil, groundwater, marine spills and air are reviewed. Advantages like low cost are balanced with longer timescales. Related technologies like phytoremediation and bioventing are also mentioned.
Role of microbes in bioremediation
This document discusses the roles of microbes in bioremediation. It defines bioremediation as using microorganisms such as bacteria and fungi to degrade contaminants in soils, groundwater, and sediments. The key factors that affect microbial bioremediation are discussed, including the microbial population, oxygen, water, nutrients, temperature, and pH. Different types of bioremediation techniques are described, as well as examples of bioremediation applications in soils, groundwater, marine oil spills, and air pollution control.
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Bioremediation - prospects for the future application of innovative applied
1) Bioremediation uses biological processes to eliminate, attenuate, or transform polluting substances. Traditional techniques like biopiling and landfarming rely on microbial degradation of contaminants in soil. Phytoremediation uses plants and their rhizospheres to uptake or degrade contaminants.
2) Phytobial remediation combines phytoremediation and bioremediation by using microbes like Trichoderma harzianum colonized in plant roots to efficiently degrade toxicants while providing an energy source from plant root exudates.
3) Initial experiments found T. harzianum could detoxify cyanides and metallocyanides in soil, allowing plant
bioremediation
This document discusses bioremediation, which is a process that uses microorganisms or plant enzymes to treat contaminated media like water or soil. There are two main types of bioremediation: in-situ, which remediates contamination at the site, and ex-situ, which treats contaminated materials after removing them from the site. Selection of bioremediation technologies depends on factors like the type of microorganisms, pollutant concentration, environment, and nutrient availability. Common in-situ technologies include biostimulation, bioaugmentation, bioventing, and biosparging.
introduction to Bioremediation and its type
introduction to bioremediation and its type i.e., insitu and exsitu
Bioremediation clean environment
Bioremediation uses microorganisms like bacteria and fungi to degrade contaminants in soil and water. It works by stimulating natural microbial activity to break down harmful pollutants into harmless substances. Various technologies can be used including treating excavated soil in biopiles or bioreactors, injecting nutrients and oxygen into contaminated groundwater and soil, and planting vegetation that helps remove toxins from the environment. The microbes metabolize the pollutants for food and energy through aerobic or anaerobic processes, transforming contaminants into less toxic or non-toxic forms.
Bioremediation
This document discusses bioremediation, which uses microorganisms to degrade environmental pollutants. It defines bioremediation and describes how it works to break down hazardous substances. There are three main types of bioremediation: biostimulation adds nutrients to stimulate microbial growth; bioaugmentation adds microbes to degrade specific contaminants; and intrinsic bioremediation relies on natural attenuation. Methods of bioremediation include in-situ and ex-situ approaches. In-situ techniques like bioventing treat pollution on-site, while ex-situ methods involve removing material to above-ground bioreactors for treatment. Bioremediation has applications in controlling water, soil and air
Bioremediation by shoyeb, GEBT, JUST
This document provides an overview of bioremediation presented by Md. Shoyeb. It defines bioremediation as using organisms or their enzymes to return polluted environments to their original condition. The mechanisms, principles, strategies (in situ and ex situ), types (bioventing, biosparging, bioaugmentation), advantages and disadvantages are summarized. Key contaminants amenable to bioremediation are identified along with persistent pollutants that are difficult to degrade.
Enzymes and their roles in the bioremediation
This document discusses bioremediation and the enzymes used in the process. It begins with background information on bioremediation and enzymes. Major enzymes that aid in bioremediation are then outlined, including peroxidases, oxygenases, and dioxygenases. An example is given of lignin peroxidase and its effectiveness in bioremediating pollutants. The advantages of bioremediation include it being relatively inexpensive and allowing toxic waste to naturally break down. Limitations include difficulty controlling bacteria and potential to spread illness. In conclusion, bioremediation offers a safer, more cost-effective cleaning method for contaminated sites.
Role of Bioremediation in Environment
Bioremediation is the process in which the micro-organisms are used to degrade the pollutants from the environment. Plants and micro-organisms are used to clean up the environment. Bioremediation is carried out by microbes and their metabolisms are used to remove the contaminants. Microbes have the ability to resolve the issue of contaminated ecosystem1. To improve or better living style the degradation of contaminated areas is very important. Importance of the biodegradation is increasing due to the expensiveness of the chemicals. So bioremediation is the best choice. The effluents should be degraded from the environment because they are very dangerous and have a bad impact on human beings. These pollutants sink into the water and cause pollution. These pollutants are treated with the help of microbes in bioremediation process. It is the best method because it is cost effective and eco-friendly. Different techniques of bioremediation are used to convert toxic substances into less toxic substances.
In Situ Bioremediation
Bioremediation is the use of microorganisms (e.g., bacteria, fungi), plants (termed phytoremediation), or biological enzymes to achieve treatment of hazardous waste. Treatment can target a variety of media (wastewater, groundwater, soil/sludge, gas) with several possible objectives (e.g., mineralization of organic compounds, immobilzation of contaminants). In situ bioremediation (ISB) is the application of bioremediation in the subsurface – as compared to ex situ bioremediation, which applies to media readily accessible aboveground (e.g., in treatment cells/soil piles or bioreactors). In situ bioremediation may be applied in the unsaturated/vadoze zone (e.g., bioventing) or in saturated soils and groundwater (Sharma S. 2012).
Bioremediaion
The document discusses bioremediation techniques for treating fish processing waste. It provides background on the large quantities of solid waste and wastewater generated by fish processing plants. Both aerobic and anaerobic bioremediation techniques can be used, including intrinsic and accelerated bioremediation which use indigenous or added microorganisms. Specific in situ techniques mentioned are bioventing, biostimulation, and bioaugmentation. Essential factors for effective microbial bioremediation include suitable microbial populations, oxygen, water, nutrients, temperature, and pH. Bioremediation is seen as a cost effective and environmentally friendly way to treat fish processing waste and other pollutants.
Seminar presentation
This is the brief description of the boiremediation esp. phytoremediation. May be helpful for the learners.
Phytoremediation
Phytoremediation is defined as the use of higher plants for the cost-effective, environmentally friendly rehabilitation of soil and groundwater contaminated by toxic metals and organic compounds.
Dissertation ppt biostimulation- a potential practice for wastewater treaat...
Phycoremediation is a green technology that supports the direct use of living green microalgae for in situ, or in place removal, degradation, of contaminants in soils, sludge, sediments, surface water and ground waters by the mechanisms of bio-transformation, bio-accumulation, bio-concentration, bio-sparging.
It can be said by the current study that microalgae has a great potential for the treatment of industrial and municipal wastewaters as compared to the chemical treatments available commercially. Biological systems are much more efficient in cleaning the excess nutrients from the waste water followed by generation of valuable biomass which can be applied in the food, fertilizer, energy production as use of inorganic chemicals like lime and ferrous sulphate generates huge amount of sludge in textile industries, but on the other hand static anaerobic treatment using acclimatized MLSS gives better colour reduction with zero sludge generation. Microalgal cells can be used in free form to treat waste waters containing high C.O.D., high ammonical nitrogen and high TDS. It not only provides a better reduction of chemicals from wastewaters but it also helps to reduce the operational cost of ETP. Microalgaes not only helps to remediate industrial waste waters but also to treat sweage water and to restore natural water bodies like lakes and ponds. As they are active in remediating the chemicals but also it shows an antagonistic effect against some pathogenic germs like total coliforms and fecal coliforms.
These microalgal cells can also be combined with bacterial biomass of activated sludge process to develop an Algal-Bacterial consortium (ALBA) for better enhancement in the reduction of chemicals from the wastewaters as this symbiotic relation of algae and bacteria provides high satiability of the microalgae along with MLSS and faceable in terms of price and economy for instance the bacterial biomass provides carbon dioxide to algal cells for photosynthesis and in return the bacteria acquires oxygen from algae. The harvested biomass from the ETP’s can be used as bio-fertilizers as it consists of appropriate ratio of vital macro and micro nutrients like N,P,K etc. which enhance the growth of plantlets. It can also be used as aqua feeds for shrimps, fishes and molluscs. Furthermore these microlgal cells are non-toxic in the environment as it becomes a part of food chain and do not cause eutrophication. Therefore, micro-algal based treatment is most suitable for the treating the waste waters and restoring the natural water bodies as compared to other chemical treatments.
Bioremediation
•Introduction of bioremediation: Bioremediation refers to the process of using microorganisms to remove the environmental pollutants i.e. toxic wastes found in soil, water, air etc.
•In situ bioremediation:
It involves a direct approach for the microbial
degradation of xenobiotics at the sites of pollution
(soil, ground water).
•Types of in situ bioremediation:
Natural attenuation.
Engineered in situ bioremediation.
- Bioventing, biosparging, bioslurping,
phytoremediation.
•Ex situ bioremediation:
Waste or toxic pollutants can be collected from the polluted sites and bioremediation can be carried out at a designated place or site.
• Types of ex situ bioremediation
Land farming, windrow, biopiles, bioreactors.
•Microorganisms use in bioremediation:
A number of naturally occurring marine microbes
such as Pseudomonas sp. is capable of degrading oil and other hydrocarbons.
•Factors affecting bioremediation:
Nutrient availability, moisture content, pH, temperature, contaminant availability.
•References:
Satyanarayana U. Biotechnology. BOOKS AND ALLIED (P) Ltd.
Sharma P.D. Environmental Microbiology. RASTOGI PUBLICATIONS.
Gupta P.K. Biotechnology and Genomics. RASTOGI PUBLICATIONS.
Dubey R.C. A Textbook of Biotechnology. S Chand And Company Ltd.
Dubey R.C. A Textbook of Microbiology. S Chand And Company Ltd.
Willey/Sherwood/Woolverton. Prescott’s Microbiology. McGRAW-HILL INTERNATIONAL EDITION.
www.sciencedirect.com/bioremediation.
Bioremediation.
The document discusses bioremediation, which uses microorganisms to degrade environmental pollutants. It describes different types of bioremediation including in situ and ex situ methods. In situ bioremediation occurs on-site and can be intrinsic or engineered, while ex situ involves removing contaminated material for treatment using methods like land farming, composting, or biopiles. The document also outlines factors influencing bioremediation and lists some advantages and limitations.
Bioremediation and phytoremediation 45
there is no planet B,So save the earth.this planet is polluted by mankind so its our responsibility to save our land.
Bioremediation
This document provides information about bioremediation. It begins with an introduction defining bioremediation as using microorganisms to degrade hazardous chemicals into less toxic forms. It then discusses the types of microorganisms involved, including Pseudomonas genus and Xenobiotics-degrading microorganisms. Several examples of pollutants and degrading microorganisms are given. The mechanisms of bioremediation include aerobic and anaerobic transformations such as respiration, fermentation, and methane fermentation. Factors affecting bioremediation like moisture, nutrients, oxygen levels, pH, temperature, and pollutant characteristics are outlined. Methods of bioremediation include in-situ and ex-situ techniques
Techniques for bioremediation
Bioremediation uses microorganisms to break down hazardous substances into less toxic forms. There are two main techniques: in-situ treats contaminated soil and groundwater in place without excavation, while ex-situ excavates soil prior to treatment using methods like biopiles, bioreactors, land farming, and windrows that optimize conditions for microorganisms. The document discusses various enhanced bioremediation methods for both in-situ and ex-situ treatment.
Describe Bioremediation
composting, elimination, rhizofiltration, landfarming, bioaugmentation, bioreactors, what is bioremediation
Bioremediation.
The document discusses bioremediation, which uses microorganisms to break down environmental pollutants and clean contaminated sites. It describes different types of bioremediation including microbial remediation, which uses bacteria and fungi, and phytoremediation, which uses plants. The goals, methods, applications, advantages and limitations of bioremediation are summarized. Key bioremediation techniques mentioned are bioventing, land-farming, bioaugmentation, and biopiles.
What's hot (20)
Bioremediation - prospects for the future application of innovative applied
Bioremediation - prospects for the future application of innovative applied
Dissertation ppt biostimulation- a potential practice for wastewater treaat...
Dissertation ppt biostimulation- a potential practice for wastewater treaat...
Similar to Bioremediation
Bioremediation
This document discusses bioremediation, which uses microorganisms like bacteria and fungi to degrade environmental pollutants. It defines bioremediation and describes how it works by stimulating existing microbes or adding specialized microbes. The key factors for effective bioremediation like nutrients, water, oxygen and temperature are outlined. In-situ and ex-situ bioremediation methods are compared, and applications to treat soil, groundwater, marine spills and air are reviewed. Advantages like low cost are balanced with longer timescales. Related technologies like phytoremediation and bioventing are also mentioned.
Role of microbes in bioremediation
This document discusses the roles of microbes in bioremediation. It defines bioremediation as using microorganisms such as bacteria and fungi to degrade contaminants in soils, groundwater, and sediments. The key factors that affect microbial bioremediation are discussed, including the microbial population, oxygen, water, nutrients, temperature, and pH. Different types of bioremediation techniques are described, as well as examples of bioremediation applications in soils, groundwater, marine oil spills, and air pollution control.
Bioremediation.pdf
Bioremediation
Bioremediation refers to the use of either naturally occurring or
deliberately introduced microorganisms to consume and break down
environmental pollutants, in order to clean a polluted site.
The process of bioremediation enhances the rate of the natural
microbial degradation of contaminants by supplementing the
indigenous microorganisms (bacteria or fungi) with nutrients, carbon
sources, or electron donors (biostimulation, biorestoration) or by
adding an enriched culture of microorganisms that have specific
characteristics that allow them to degrade the desired contaminant at
a quicker rate (bioaugmentation).
It is a cleaning process that degrades dangerous contaminants using
naturally existing microbes. These bacteria may consume and
degrade organic chemicals as a source of food and energy, degrade
organic substances that are dangerous to living creatures, including
humans, and degrade the organic pollutants into inert products.
Because the bacteria already exist in nature, they offer no pollution
concern
Bioremediation is the use of
microorganisms or microbial processes
to detoxify and degrade environmental
contaminants.
Microorganisms have been used for the
routine treatment and transformation
of waste products for several decades
Bioremediation strategies rely on
having the correct microorganisms in
the right location at the right time in the
right environment for degradation to
occur. The appropriate microorganisms
are bacteria and fungi that have the
physiological and metabolic
competence to breakdown pollutants
Objective of Bioremediation
The objective of bioremediation is to decrease pollutant levels to
undetectable, nontoxic, or acceptable levels, i.e., within regulatory
limits, or, ideally, to totally mineralize organopollutants to carbon
dioxide
BIOREMEDIATION AND THEIR IMPORTANCE IN ENVIRONMENT
PROTECTION
Bioremediation is defined as ‘the process of using microorganisms to remove
the environmental pollutants where microbes serve as scavengers’.
• The removal of organic wastes by microbes leads to environmental clean-up.
The other names/terms used for bioremediation are biotreatment,
bioreclamation, and biorestoration.
• The term “Xenobiotics” (xenos means foreign) refers to the unnatural, foreign
and synthetic chemicals, such as pesticides, herbicides, refrigerants, solvents
and other organic compounds.
• The microbial degradation of xenobiotics also helps in reducing the
environmental pollution. Pseudomonas which is a soil microorganism
effectively degrades xenobiotics.
• Different strains of Pseudomonas that are capable of detoxifying more than
100 organic compounds (e.g. phenols, biphenyls, organophosphates,
naphthalene, etc.) have been identified.
• Some other microbial strains are also known to have the capacity to degrade
xenobiotics such as Mycobacterium, Alcaligenes, Norcardia, etc.
Factors affecting biodegradation
The factors that affect the
biodegradation are:
• the chemical nature of
xenobiotics,
• the conc
bioremediation_of_contaminated_soils_ppt.pptx
This document discusses bioremediation of contaminated soils. It defines bioremediation as using microorganisms or their enzymes to degrade soil contaminants like heavy metals, pesticides, and hydrocarbons. Two main types are discussed - intrinsic bioremediation which uses native microbes, and engineered bioremediation which introduces microbes. Engineered techniques include biostimulation to improve conditions for native microbes, bioventing to add oxygen, and bioaugmentation to add specific degrading microbes. The document provides details on various bioremediation processes and criteria for their effective use.
Bioremadiation
This document discusses various types of bioremediation techniques used to clean up contaminated soil and groundwater. It defines bioremediation as using living microorganisms to degrade environmental pollutants or prevent pollution. The two main types of bioremediation are in situ, which treats contaminants in place, and ex situ, which involves removing contaminated material to be treated elsewhere. Specific techniques discussed include bioaugmentation, bioslurping, biosparging, natural attenuation, bioventing, and biostimulation. The advantages and limitations of bioremediation are also summarized.
Bioremediation.pptx
This document discusses bioremediation, which uses microorganisms to degrade environmental contaminants into less toxic forms. It describes various methods of bioremediation including bioaugmentation, biostimulation, and intrinsic bioremediation. Bioaugmentation involves adding microbes that can degrade specific contaminants, biostimulation provides nutrients to promote existing microbial growth, and intrinsic bioremediation relies on natural microbial activity. The document also outlines the types of microbes used in bioremediation such as bacteria, fungi, algae, and plants. It concludes that bioremediation is an effective technique for reducing environmental toxicity and discusses using algae to treat wastewater and metal-hyperaccumulating plants for ph
Bioremediation - A METHOD TO SAVE EARTH
Micro-organisms are well known for their ability to break down a huge range of organic compounds and absorb inorganic substances. Currently, microbes are used to clean up pollution treatment in processes known as ‘bioremediation’.
Bioremediation as a treatment method.pdf
This document provides an overview of bioremediation, which uses microorganisms like bacteria and fungi to degrade contaminants in soil, water, and other environments. It discusses how bioremediation works, essential factors for effective microbial bioremediation, different bioremediation methods, microbes involved, advantages and disadvantages, applications, and related technologies. The key points are that bioremediation relies on microbes breaking down pollutants into less toxic forms, various methods can be used like biostimulation or bioaugmentation, and it has benefits of being low-cost and minimizing site disruption while drawbacks include being time-consuming and not working for all compounds.
Bioremediation introduction
The document discusses bioremediation, which uses microorganisms to break down environmental pollutants. It can be used to treat sites contaminated with substances like oil, solvents, and pesticides. There are two main types - microbial remediation which uses bacteria and fungi, and phytoremediation which uses various plant species. The goal is to reduce pollutant levels to safe levels set by regulatory agencies through stimulating microbial growth and degradation of contaminants.
Bioremediation its types
Bioremediation is a process that uses microorganisms to degrade contaminants in various media like water, soil, and subsurface materials. There are three main types of bioremediation: biostimulation adds nutrients to stimulate microbial growth; bioaugmentation adds specialized microbes to sites where indigenous microbes cannot fully degrade contaminants; and intrinsic bioremediation relies on natural microbial attenuation in soils and waters. Bioremediation depends on microbial metabolism, where microbes use contaminants for energy and building cell materials through catabolic and anabolic processes.
Bioremediation.pptx
Bioremediation uses microorganisms like bacteria and fungi to degrade environmental pollutants into less toxic forms. It can occur in situ, with the contaminants treated on site, or ex situ by removing the contaminated soil or water for treatment. The mechanisms involve microbes breaking down pollutants for food and energy. Key types are bacterioremediation using bacteria, phytoremediation using plants, and mycoremediation using fungi. Bioremediation can transform or mineralize organic wastes into innocuous substances like carbon dioxide and water.
Bioremediation lecture.pptx
The document discusses various methods of bioremediation and biodegradation to remediate contaminated soil and groundwater. It defines bioremediation as using biological organisms such as bacteria and fungi to solve environmental problems through technological innovation. Biodegradation is the natural breakdown of materials by microorganisms. The document then describes various in situ and ex situ bioremediation techniques in detail, including bioventing, biosparging, bioslurping, phytoremediation, land farming, biopiles, and windrows. The key factors in selecting a bioremediation method are the contaminants present, their accessibility to microbes, and any environmental conditions that could inhibit microbial activity.
Bioremediation
Bioremediation uses microorganisms to break down contaminants in soil and water. There are three main types: biostimulation adds nutrients to encourage microbial growth; bioaugmentation adds microbes that degrade specific contaminants; and intrinsic bioremediation relies on naturally occurring microbes. Microbes metabolize contaminants through anabolism and catabolism, using contaminants for energy and building cell structures. Factors like microbial populations, contaminant availability, temperature, and nutrients influence bioremediation effectiveness.
Bioremadiation-.pdf types of Bioremediation process
It's a basic knowledge about Bioremediation and type of Bioremediation process and instiu and exsitu Bioremediation type
BIOREMEDIATION PHYTOREMEDIATION (1).pptx
This document provides an overview of bioremediation and phytoremediation. It defines bioremediation as using biological organisms like microbes and plants to treat contaminated soil and water. The document discusses the history of bioremediation and categorizes different bioremediation techniques. It also outlines the pros and cons of various in-situ and ex-situ bioremediation methods like bioventing, bioaugmentation, biostimulation, biosparging, land farming and composting. Finally, it introduces the concept of phytoremediation and notes that it involves using plants to remediate environmental contaminants.
Environment pollution_Bioremediation.pptx
Biodegradation is very fruitful and attractive option to remediating, cleaning, managing and recovering technique for solving polluted environment through microbial activity. The speed of undesirable waste substances degradation is determined in competition within biological agents like fungi, bacterial, algae inadequate supply with essential nutrient, uncomfortable external abiotic conditions (aeration, moisture, pH, temperature), and low bioavailability. Bioremediation depending on several factors, which include but not limited to cost, site characteristics, type and concentration of pollutants. The leading step to a successful bioremediation is site description, which helps create the most suitable and promising bioremediation technique (ex-situ or in-situ).
Bioremediation & Phytoremediation
Bioremediation uses microorganisms such as bacteria, fungi, and plants to degrade environmental pollutants into non-toxic matter. It can be used to treat contaminated soil and groundwater in situ (where it is found) or ex situ by removing the contaminated material and treating it elsewhere. There are various types of bioremediation depending on the technique used such as bioaugmentation, biostimulation, and phytoremediation. It is an effective and often low-cost approach to cleanup, but can be difficult to control and may not reduce contaminant concentrations to regulatory levels.
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This document discusses bioremediation, which is the process of using microorganisms to break down hazardous contaminants in soil and water into nontoxic substances. It notes that rapid industrialization has contaminated the environment through emissions, spills, and effluents. Bioremediation can be used to naturally break down pollutants like petroleum hydrocarbons, chlorinated compounds, and nitroaromatics. There are two main types of bioremediation: in situ treats contaminants on-site, while ex situ involves removing and treating contaminated materials elsewhere. Technologies include bioventing, bioaugmentation, biosparging, land farming, composting, and bioreactors. Bioremediation has
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This document provides an overview of various applications of environmental biotechnology including bioremediation, biomining, biomarkers, biodegradation, sewage treatment, biosorption, biofiltration, biosensors, and more. Environmental biotechnology uses biological processes like microorganisms and plants to solve environmental problems and protect ecosystems in a sustainable way. It summarizes key concepts and methods within each application area.
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Bioremediation
- 1. Bioremediation Aakifah Amreen H. E 2nd MSc (BT)
- 2. Content • Definition • Principle • Types of Bioremediation • Methodologies involved • Phytoremediation
- 3. Bioremediation Defined as, Bioremediation is a means of cleaning up contaminated environments by exploiting the diverse metabolic abilities of microorganisms to convert contaminants to harmless products by mineralization, generation of carbon dioxide and water, or by conversion into microbial biomass
- 4. Principle • It's main role is to return polluted environments to their natural state. • The pollutants that can be sequestered or removed by microorganisms include toxic heavy metals such as lead, cadmium, arsenic and radioactive metals.
- 5. Cont'd.... In general, Bioremediation methodologies focus on- 1. Enhancing the abundance of certain species or groups of microorganisms that can metabolize toxic chemicals (Bioagumentation) 2. Optimizing environmental conditions for the actions of these organisms. It focuses on rapidly increasing the abundance of naturally occurring ubiquitous microorganisms.
- 6. Types of Bioremediation On the basis of place where wastes are removed, there are principally two ways of bioremediation: 1. Insitu bioremediation 2. Exsitu bioremediation
- 8. Insitu bioremediation • Treating polluted substance at the site of pollution • Doesn't require excavation • This technique is less expensive • Intrinsic or natural bioremediation is a process where no enhancement is require ment • It can be used to treat successfully chlorinated solvents, dyes, heavy metal & hydrocarbon
- 9. Two types of in situ bioremediation are distinguished based on the origin of the microorganisms applied as bioremediants: (i) Intrinsic bioremediation- • Is carried out without direct microbial amendment • Through intermediation in ecological conditions of the contaminated region • Fortification of the natural populations and the metabolic activities of indigenous or naturally existing microfauna by improving nutritional and ventilation conditions.
- 10. (ii) Engineered in situ bioremediation— • Is performed through the introduction of certain microorgansims to contamination site. • The conditions of contamination sites are most often unfavorable for the establishment and bioactivity of the exogenously amended microorganisms • therefore, the environment is modified in a way that improved physico-chemical conditions are provided.
- 11. Extrinsic bioremediation • It is done somewhere out from Contaminated site i.e., excavating contaminated soil or pumping out the ground water to sit of bioremediation • Techniques based on - the cost of treatment ;depth of pollution ;geology of polluted site. • Depending on the state of the contaminant in the step of bioremediation, ex situ bioremediation is classified as:
- 12. • Solid phase system —The system is used in order to bioremediate organic wastes and problematic domestic and industrial wastes, sewage sludge, and municipal solid wastes. • Slurry phase systems - Slurry phase bioremediation is a relatively more rapid process compared to the other treatment processes.
- 14. Bioventing It's a process of stimulating the natural onsite bioremediation of contaminants in soul by providing air or oxygen to existing soil microorganisms. Biovenrung useslow air flow rates to provide oxygen to sustain mictibial activity in the vadise zone This technique is used in restoring sites pollutted with Petroleum products to bit light
- 15. Biosparging • involves injection of air under pressure below the water level to increase ground water concentration • To enhance rate of biological degradation of contaminants by naturally occurring bacteria
- 16. Biopile • Are hybrid of land n composting • Typically used for treatment of surface contaminants • It provides a favorable environment for indigenous aerobic and anaerobic microorganisms
- 18. Land farming • Is a simple technique • Here contaminated soil is excavated and spread over a bed prepared bed and periodically tilled until pollutants are degraded • The practice is limited to treatment of superficial 10 - 35cm of soil
- 20. Phytoremediation remediation • Phytoremediation is a technology that uses plants to degrade, assimilate, metabolize, or detoxify metal and organic chemical contamination. • Phytoremediation can provide a low-cost and sustainable way to improve the economies of developing countries.
- 22. • Phytoremediation basically refers to the use of plants and associated soil microbes to reduce the concentrations or toxic effects of contaminants in the environment. Phytoremediation is widely accepted as a cost-effective environmental restoration technology.