Microbial Degradation of Synthetic Dyes in Wastewaters

Microbial Degradation of Synthetic Dyes in Wastewaters PDF Author: Shree Nath Singh
Publisher: Springer
ISBN: 3319109421
Category : Science
Languages : en
Pages : 374

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Book Description
Today synthetic dyes are used extensively in the textile dyeing, paper printing, color photography, pharmaceuticals, food and drink, cosmetic and leather industries. As of now, over 100,000 different dyes are available, with an annual production of over 700,000 metric tons. These industries discharge an enormous amount of colored effluents into natural water bodies, with or without treatment. The textile industry alone discharges 280,000 tons of dyes every year, making it the largest contributor to colored effluent discharge. Although a variety of treatment technologies are available, including adsorption, chemical oxidation, precipitation, coagulation, filtration electrolysis and photodegradation, biological and microbiological methods employing activated sludge, pure cultures, microbial consortia and degradative enzymes are economically viable, effective and environmentally responsible options. As such, this book gathers review articles from international experts working on the microbial degradation of synthetic dyes, offering readers the latest information on the subject. It is intended as a quick reference guide for academics, scientists and industrialists around the world.

Microbial Degradation of Synthetic Dyes in Wastewaters

Microbial Degradation of Synthetic Dyes in Wastewaters PDF Author: Shree Nath Singh
Publisher: Springer
ISBN: 3319109421
Category : Science
Languages : en
Pages : 374

Get Book Here

Book Description
Today synthetic dyes are used extensively in the textile dyeing, paper printing, color photography, pharmaceuticals, food and drink, cosmetic and leather industries. As of now, over 100,000 different dyes are available, with an annual production of over 700,000 metric tons. These industries discharge an enormous amount of colored effluents into natural water bodies, with or without treatment. The textile industry alone discharges 280,000 tons of dyes every year, making it the largest contributor to colored effluent discharge. Although a variety of treatment technologies are available, including adsorption, chemical oxidation, precipitation, coagulation, filtration electrolysis and photodegradation, biological and microbiological methods employing activated sludge, pure cultures, microbial consortia and degradative enzymes are economically viable, effective and environmentally responsible options. As such, this book gathers review articles from international experts working on the microbial degradation of synthetic dyes, offering readers the latest information on the subject. It is intended as a quick reference guide for academics, scientists and industrialists around the world.

Biodegradation of Azo Dyes

Biodegradation of Azo Dyes PDF Author: Hatice Atacag Erkurt
Publisher: Springer Science & Business Media
ISBN: 3642118461
Category : Science
Languages : en
Pages : 221

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Book Description
Azo dyes play an important role as coloring agents in the textile, food, and pharmaceutical industry. Due to the toxicity, mutagenicity and carcinogenicity of azo dyes and their breakdown products, their removal from industrial wastewaters has been an urgent challenge. Promising and cost-effective methods are based on their biodegradation, which is treated in this volume. The topics presented by experts in the field include: the classification of azo dyes; toxicity caused by azo dyes; aerobic and anaerobic azo dye biodegradation mechanisms; the role of bacteria, fungi, algae and their enzymes in biodegradation; the impact of redox mediators on azo dye reduction; the integration of biological with physical and chemical processes; the biotransformation of aromatic amines; reactor modelling for azo dye conversion; the biodegradation of azo dyes by immobilized bacteria and fungi; and factors affecting the complete mineralization of azo dyes.

Microbial Decolorization and Degradation of Azo Dyes

Microbial Decolorization and Degradation of Azo Dyes PDF Author: Manjinder Singh
Publisher: LAP Lambert Academic Publishing
ISBN: 9783843378895
Category :
Languages : en
Pages : 184

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Book Description
The textile processing industries produce huge quantities of colored effluents containing significant amount of unreacted dyes. These dyes are xenobiotic in nature and are thus of environmental concern. Most of the physico-chemical methods used for dye removal are cost intensive and have limited versatility. Alternatively, biological treatment methods hold promise as relatively inexpensive way to remove dyes from wastewater. This book discussed the results of the successful implementation of biological treatment process for degradation of azo dyes. An efficient microbial inoculum was developed having wide versatility to work under both anoxic and aerobic conditions and surviving the shock loading concentrations of azo dyes and their metabolic intermediates. A sequential anoxic-aerobic bioreactor was developed using enriched consortium for the continuous treatment of synthetic textile industry wastewater. The intermediates and final products after treatment of azo dyes with bioreactor were characterized. The toxic potential of the selected azo dyes and their degradation products was assessed for the validation of treatment process.

Biodegradation of Azo Dyes

Biodegradation of Azo Dyes PDF Author: Hatice Atacag Erkurt
Publisher: Springer
ISBN: 364211847X
Category : Science
Languages : en
Pages : 221

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Book Description
Azo dyes play an important role as coloring agents in the textile, food, and pharmaceutical industry. Due to the toxicity, mutagenicity and carcinogenicity of azo dyes and their breakdown products, their removal from industrial wastewaters has been an urgent challenge. Promising and cost-effective methods are based on their biodegradation, which is treated in this volume. The topics presented by experts in the field include: the classification of azo dyes; toxicity caused by azo dyes; aerobic and anaerobic azo dye biodegradation mechanisms; the role of bacteria, fungi, algae and their enzymes in biodegradation; the impact of redox mediators on azo dye reduction; the integration of biological with physical and chemical processes; the biotransformation of aromatic amines; reactor modelling for azo dye conversion; the biodegradation of azo dyes by immobilized bacteria and fungi; and factors affecting the complete mineralization of azo dyes.

Recent Advances in Decolorization and Degradation of Dyes in Textile Effluent by Biological Approaches

Recent Advances in Decolorization and Degradation of Dyes in Textile Effluent by Biological Approaches PDF Author: Ram Lakhan Singh
Publisher: CRC Press
ISBN: 0429534531
Category : Science
Languages : en
Pages : 92

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Book Description
Recent Advances in Decolorization and Degradation of Dyes in Textile Effluent by Biological Approaches outlines various eco-friendly, cost effective methods for removal of toxic textile dyes. Large amounts of dye are unbound and released into the environment due to inefficient dyeing processes. The release of wastewater containing dye into the environment has several adverse effects as it is toxic, mutagenic and has other undesirable effects on living organisms. Hence, it is necessary to remove these dyes from industrial effluents to have a sustainable environment. This book deals with conventional as well as advanced effective treatment methods for the removal of dyes in order to increase the domain knowledge of readers. Salient features: Describes physico-chemical characteristics of textile effluent, dye classes and toxicity of dyes commonly used in the textile industry Assembles effective approaches which are used to remove dyes from textile effluent prior to their release into the environment Presents several advanced approaches such as genetic engineering, nanotechnology, immobilized cells or enzymes, biofilms and microbial fuel cells, etc. for the removal of dyes.

Microbial Remediation of Azo Dyes with Prokaryotes

Microbial Remediation of Azo Dyes with Prokaryotes PDF Author: Maulin P Shah
Publisher: CRC Press
ISBN: 1000534251
Category : Technology & Engineering
Languages : en
Pages : 361

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Book Description
This book details microbial remediation of azo dyes from wastewater including information on existing methods and technologies, their graduation, the emergence of new technologies, industrial practices, and real-case studies. Emphasis is placed on industrial applications and the elimination of toxic pollutants from wastewater through bacterial approach. Specific aspects discussed include effective separation through new adsorbents / newcomers, ion exchange process, coagulation / formulations, separations, and biological methods from wastewater. This book explains a paradigm shift towards the recovery of materials and energy from azo dye containing wastewater. Features: Provides information on the topic of prokaryotic-based technologies for azo dye degradation in wastewater treatment plant. Describes microbial enzymes and their role in bioremediation of environmental pollutants. Covers industrial acid mine tailing wastes, plastic wastes, distillery, and pulp paper industry effluent. Discusses critical insight into limitations of related technologies. Explains concepts through illustrations, figures, tables, and trivia boxes. This book aims at Researchers, Professionals, Graduate Students in Bioremediation and Environmental Protection, Waste Management, Applied Microbiology, Botany and Plant Biotechnology.

Microbial Degradation of Xenobiotics

Microbial Degradation of Xenobiotics PDF Author: Shree Nath Singh
Publisher: Springer Science & Business Media
ISBN: 3642237894
Category : Science
Languages : en
Pages : 488

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Book Description
Our interest in the microbial biodegradation of xenobiotics has increased many folds in recent years to find out sustainable ways for environmental cleanup. Bioremediation and biotransformation processes harness the naturally occurring ability of microbes to degrade, transform or accumulate a wide range of organic pollutants. Major methodological breakthroughs in recent years through detailed genomic, metagenomic, proteomic, bioinformatic and other high-throughput analyses of environmentally relevant microorganisms have provided us unprecedented insights into key biodegradative pathways and the ability of organisms to adapt to changing environmental conditions. The degradation of a wide spectrum of organic pollutants and wastes discharged into the environment by anthropogenic activities is an emerging need today to promote sustainable development of our society with low environmental impact. Microbial processes play a major role in the removal of recalcitrant compounds taking advantage of the astonishing catabolic versatility of microorganisms to degrade or transform such compounds. New breakthroughs in sequencing, genomics, proteomics, bioinformatics and imaging are generating vital information which opens a new era providing new insights of metabolic and regulatory networks, as well as clues to the evolution of degradation pathways and to the molecular adaptation strategies to changing environmental conditions. Functional genomic and metagenomic approaches are increasing our understanding of the relative importance of different pathways and regulatory networks to carbon flux in particular environments and for particular compounds. New approaches will certainly accelerate the development of bioremediation technologies and biotransformation processes in coming years for natural attenuation of contaminated environments

Dye Biodegradation, Mechanisms and Techniques

Dye Biodegradation, Mechanisms and Techniques PDF Author: Subramanian Senthilkannan Muthu
Publisher: Springer Nature
ISBN: 981165932X
Category : Science
Languages : en
Pages : 290

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Book Description
An enormous amount of synthetic dyes is used annually in the textile, leather, plastics, paper, and dye industries due to their coloring properties. Although dyes give color to materials, they are prone to increase the level of pollution in the environment. The colored wastewater produced in industrial sectors is released into water bodies, posing threats to the ecosystem. To reduce the adverse effects of dyes in the environment, it is necessary to implement feasible and cost-effective strategies. '"Dye Biodegradation Mechanisms and Techniques - Recent Advances'' provides fundamental principles and pathways of bio-based mechanisms in dye removal. This edition firstly discusses dye classification and pollution, then concentrates on the application of fungi, mesophilic bacteria, microflora, and enzymes in dye degradation. This book also highlights the performance of sequential batch reactor systems, moving bed biofilm reactors, and hybrid bioreactors for dye biodegradation​

Organic Pollutants Ten Years After the Stockholm Convention

Organic Pollutants Ten Years After the Stockholm Convention PDF Author: Tomasz Puzyn
Publisher: BoD – Books on Demand
ISBN: 9533079177
Category : Technology & Engineering
Languages : en
Pages : 486

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Book Description
Ten years after coming into force of the Stockholm Convention on Persistent Organic Pollutants (POPs), a wide range of organic chemicals (industrial formulations, plant protection products, pharmaceuticals and personal care products, etc.) still poses the highest priority environmental hazard. The broadening of knowledge of organic pollutants (OPs) environmental fate and effects, as well as the decontamination techniques, is accompanied by an increase in significance of certain pollution sources (e.g. sewage sludge and dredged sediments application, textile industry), associated with a potential generation of new dangers for humans and natural ecosystems. The present book addresses these aspects, especially in the light of Organic Pollutants risk assessment as well as the practical application of novel analytical methods and techniques for removing OPs from the environment. Providing analytical and environmental update, this contribution can be particularly valuable for engineers and environmental scientists.

Waste Bioremediation

Waste Bioremediation PDF Author: Sunita J. Varjani
Publisher: Springer
ISBN: 9811074135
Category : Science
Languages : en
Pages : 384

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Book Description
This book discusses the bioremediation of both solid and liquid waste, including regional solutions for India as well as globally relevant applications. The topics covered include pollutant reduction through composting, solutions for petroleum refinery waste, use of microorganisms in the bioremediation of industrial waste and toxicity reduction, microbial fuel cells, and microbial depolymerisation. The book also explores the biosorption of metals and the bioremediation of leachates, especially with regard to soil and groundwater remediation. It is a valuable resource for researchers, professionals, and policy makers alike.