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Biodegradation of Azo Dyes

Biodegradation of Azo Dyes
Author: Hatice Atacag Erkurt
Publisher: Springer Science & Business Media
Total Pages: 221
Release: 2010-04-21
Genre: Science
ISBN: 3642118461
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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.

Nanoscience and Biotechnology for Environmental Applications

Nanoscience and Biotechnology for Environmental Applications
Author: K M Gothandam
Publisher: Springer
Total Pages: 264
Release: 2019-02-05
Genre: Science
ISBN: 3319979221
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This book presents the complete guide for readers to understand the applications, and pros and cons of nanotechnology applications in environmental remediation, although there are few critical reviews and textbooks available on environmental biotechnology. Water pollution has become one of the biggest concerns of the world. After the industrialisation and urbanisation, environmental pollution has become an enormous concern. Water pollution results in biomagnifications by entering the food chain. As a result water pollution and its risks need to be considered seriously and solutions need to be researched. This volume looks into such topics as bioremediation, nanobiotechnology, biosensors, and enzyme degradation to find solutions to these problems.

Microbial Degradation of Synthetic Dyes in Wastewaters

Microbial Degradation of Synthetic Dyes in Wastewaters
Author: Shree Nath Singh
Publisher: Springer
Total Pages: 374
Release: 2014-10-16
Genre: Science
ISBN: 3319109421
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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.

Dye Biodegradation, Mechanisms and Techniques

Dye Biodegradation, Mechanisms and Techniques
Author: Subramanian Senthilkannan Muthu
Publisher: Springer Nature
Total Pages: 290
Release: 2021-10-27
Genre: Science
ISBN: 981165932X
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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​

Biodegradation of Azo Dyes

Biodegradation of Azo Dyes
Author: Hatice Atacag Erkurt
Publisher: Springer
Total Pages: 216
Release: 2010-10-22
Genre: Science
ISBN: 9783642118913
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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 Remediation of Azo Dyes with Prokaryotes

Microbial Remediation of Azo Dyes with Prokaryotes
Author: Maulin P Shah
Publisher: CRC Press
Total Pages: 361
Release: 2022-02-21
Genre: Technology & Engineering
ISBN: 1000534251
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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.

Biodegradation of Azo Dyes by Bacterial Strains Isolated from Mill Creek Wastewater Treatment Plant, Cincinnati, Ohio

Biodegradation of Azo Dyes by Bacterial Strains Isolated from Mill Creek Wastewater Treatment Plant, Cincinnati, Ohio
Author: Michael F. Coughlin
Publisher:
Total Pages: 316
Release: 2001
Genre:
ISBN:
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Biodegradable because it is toxic and chemically unstable in an oxygenated environment. The other reduction product of Acid Orange 7 is sulfanilic acid (4-aminobenzenesulfonic acid). Due to the presence of the xenobiotic sulfonate group, sulfanilic acid is regarded as a recalcitrant compound. However a sulfanilic acid degrading organism SAD4i was also isolated from the Mill Creek Wastewater Treatment Plant. Under axenic batch culture conditions, these strains are able to mineralize Acid Orange 7 and form a biofilm community. A Rotating Drum Bioreactor (RDBR) seeded with both strains also developed a visible biofilm and was able to mineralize Acid Orange 7 when it was present as the sole source of carbon/energy and nitrogen. Subsequently, it was demonstrated that SAD4i could be incorporated into an existing biofilm that has formed when the RDBR was operated as a pilot wastewater treatment plant. These data suggest that it may be possible to use these strains to populate industrial bioreactors or wastewater treatment plants that receive azo dye waste from industrial manufactures or consumers of azo dyes.

Biodegradable Green Composites

Biodegradable Green Composites
Author: Susheel Kalia
Publisher: John Wiley & Sons
Total Pages: 377
Release: 2016-02-29
Genre: Technology & Engineering
ISBN: 1118911091
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This book comprehensively addresses surface modification of natural fibers to make them more effective, cost-efficient, and environmentally friendly. Topics include the elucidation of important aspects surrounding chemical and green approaches for the surface modification of natural fibers, the use of recycled waste, properties of biodegradable polyesters, methods such as electrospinning, and applications of hybrid composite materials.

Microbial Remediation of Azo Dyes with Prokaryotes

Microbial Remediation of Azo Dyes with Prokaryotes
Author: Maulin P Shah
Publisher: CRC Press
Total Pages: 434
Release: 2022-02-21
Genre: Technology & Engineering
ISBN: 1000534294
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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.

Water Pollution and Remediation: Photocatalysis

Water Pollution and Remediation: Photocatalysis
Author: Inamuddin
Publisher: Springer Nature
Total Pages: 443
Release: 2020-10-29
Genre: Science
ISBN: 303054723X
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In the context of climate change and fossil fuel pollution, solar energy appears as a cheap and sustainable fuel for many environmental applications, yet the efficiency of techniques has to be improved. This book reviews recent methods and applications of photocatalysis for the treatment of wastewater containing bacteria, heavy metals, organic pollutants, dyes and tannery effluents. Basics of water pollution, polluted river ecosystems and membranes are also detailed.