Author: Jan Dojlido
Publisher:
ISBN:
Category : Biodegradation
Languages : en
Pages : 120

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Book Description

Author: Jan R. Dojlido
Publisher:
ISBN:
Category : Biodegradation
Languages : en
Pages : 0

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Book Description

Author: Jan Dojlido
Publisher:
ISBN:
Category : Biodegradation
Languages : en
Pages : 120

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Book Description

Author: M.H. van Agteren
Publisher: Springer Science & Business Media
ISBN: 9401590621
Category : Technology & Engineering
Languages : en
Pages : 463

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Book Description
The introduction of synthetic organic chemicals into the environment during the last few decades has given rise to major concern about the ecotoxicological effects and ultimate fate of these compounds. The pollutants that are considered to be most hazardous because of their intrinsic toxicity, high exposure level, or recalcitrant behavior in the environment have been placed on blacklists and other policy priority lists. The fate of synthetic compounds that enter the environment is mainly determined by their rate of biodegradation, which therefore also has a major effect on the degree of bioaccumulation and the risk of ecotoxicological effects. The degree and rate of biodegradation is also of critical importance for the feasibility of biological techniques to clean up contaminated sites and waste streams. The biodegradation of xenobiotics has thus been the subject of numerous studies, which resulted in thousands of publications in scientific journals, books, and conference proceedings. These studies led to a deeper understanding of the diversity of biodegradation processes. As a result, it has become possible to enhance the rate of degradation of recalcitrant pollutants during biological treatment and to design completely new treatment processes. At present, much work is being done to expand the range of pollutants to which biodegradation can be applied, and to make treatment techniques less expensive and better applicable for waste streams which are difficult to handle.

Author: Mirat D. Gurol
Publisher: International Water Assn
ISBN: 9781843397021
Category : Science
Languages : en
Pages : 196

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Book Description
Investigates the capabilities of chemical oxidatio

Author: M.H. van Agteren
Publisher: Springer
ISBN: 9789401590631
Category : Technology & Engineering
Languages : en
Pages : 493

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Book Description
The introduction of synthetic organic chemicals into the environment during the last few decades has given rise to major concern about the ecotoxicological effects and ultimate fate of these compounds. The pollutants that are considered to be most hazardous because of their intrinsic toxicity, high exposure level, or recalcitrant behavior in the environment have been placed on blacklists and other policy priority lists. The fate of synthetic compounds that enter the environment is mainly determined by their rate of biodegradation, which therefore also has a major effect on the degree of bioaccumulation and the risk of ecotoxicological effects. The degree and rate of biodegradation is also of critical importance for the feasibility of biological techniques to clean up contaminated sites and waste streams. The biodegradation of xenobiotics has thus been the subject of numerous studies, which resulted in thousands of publications in scientific journals, books, and conference proceedings. These studies led to a deeper understanding of the diversity of biodegradation processes. As a result, it has become possible to enhance the rate of degradation of recalcitrant pollutants during biological treatment and to design completely new treatment processes. At present, much work is being done to expand the range of pollutants to which biodegradation can be applied, and to make treatment techniques less expensive and better applicable for waste streams which are difficult to handle.

Author: Jan R. Dojlido
Publisher:
ISBN:
Category :
Languages : en
Pages : 100

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Book Description

Author: Blaise Lindsey
Publisher: Scientific e-Resources
ISBN: 1839473428
Category :
Languages : en
Pages : 336

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Book Description
Biodegradation is the break down of organic matter by microbes. Bioremediation is an engineered technique applied by people to clean up organic matter by helping microbes with the biodegradation process. One way of doing that is to introduce oxygen into the subsurface to help more aerobic microbes grow in order to clean up oil in the soil.The potential toxicity (harmful action) inherent in a substance is manifest only when that substance comes in contact with that susceptible living biological system. A chemical normally thought of as "e;harmless"e; will evoke a toxic response if added to a biological system in sufficient amount. The toxic potency of a chemicals is defined by the relationship between dose (the amount) of the chemical and the response that is produced in a biological system. The toxicity of industrial wastes is not often managed and it has caused serious damage to earth and water. The most important aspect of environmental biotechnology is the effective management of hazardous and toxic pollutants (xenobiotics) by bioremediation. The environmental clean-up process through bioremediation can be achieved in two ways-in situ and ex situ bioremediation. The book aims to provide relevant theoretical and practical frameworks and the latest empirical research findings in this area, along with case studies. It is written for students, academicians and industry professionals who want to improve their understanding of the strategic role of biodegradation and bioremediation at different levels of the biodegradation and bioremediation research and knowledge, that is, heavy metal pollution, toxicity, remediation methods and strategies to manage the waste in industries, which are a global concern.

Author: Edwin F. Barth
Publisher:
ISBN:
Category : Biodegradation
Languages : en
Pages : 72

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Book Description

Author: M. Alexander
Publisher:
ISBN:
Category :
Languages : en
Pages : 7

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Book Description
There have been extensive studies on the occurrence, kinetics, and products of microbial transformation of organic compounds. Many of these investigations were designed to serve as models to predict what will occur in natural water, soil, sewage, and other ecosystems. Researchers assumed that if a compound was mineralized, cometabolized, or resistant to microbial conversion at the levels normally used for biodegradation tests, it would be similarly mineralized, cometabolized, or resistant at the parts-per-billion level, or even lower levels, in nature. It also was assumed that the products would be the same regardless of substrate concentration and that the kinetics would be unchanged except that rates would decline in direct proportion to substrate concentration. The purpose of this reprinted article is to show that erroneous conclusions may be reached from studies or routine tests done with organic chemicals at the levels often employed for predicting chemical fate in nature. These errors in extrapolation from high to low concentrations may occur in routine evaluations of biodegradation, careful assessments of kinetics, or the establishment of products formed in water, soil, or sediments. Additional keywords: Thresholds; Carbon Assimilation.