Biodegradation Of Azo Dyes
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| Author | : Hatice Atacag Erkurt |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 221 |
| Release | : 2010-04-21 |
| Genre | : Science |
| ISBN | : 3642118461 |
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.
| Author | : Subramanian Senthilkannan Muthu |
| Publisher | : Springer Nature |
| Total Pages | : 290 |
| Release | : 2021-10-27 |
| Genre | : Science |
| ISBN | : 981165932X |
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
| Author | : K M Gothandam |
| Publisher | : Springer |
| Total Pages | : 264 |
| Release | : 2019-02-05 |
| Genre | : Science |
| ISBN | : 3319979221 |
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.
| Author | : Shree Nath Singh |
| Publisher | : Springer |
| Total Pages | : 374 |
| Release | : 2014-10-16 |
| Genre | : Science |
| ISBN | : 3319109421 |
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.
| Author | : Hatice Atacag Erkurt |
| Publisher | : Springer |
| Total Pages | : 216 |
| Release | : 2010-10-22 |
| Genre | : Science |
| ISBN | : 9783642118913 |
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.
| Author | : Maulin P Shah |
| Publisher | : CRC Press |
| Total Pages | : 361 |
| Release | : 2022-02-21 |
| Genre | : Technology & Engineering |
| ISBN | : 1000534251 |
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.
| Author | : Michael F. Coughlin |
| Publisher | : |
| Total Pages | : 316 |
| Release | : 2001 |
| Genre | : |
| ISBN | : |
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.
| Author | : Sushma Dave |
| Publisher | : Elsevier |
| Total Pages | : 796 |
| Release | : 2021-08-09 |
| Genre | : Technology & Engineering |
| ISBN | : 0128242027 |
Photocatalytic Degradation of Dyes: Current Trends and Future Perspectives covers in detail current trends and future aspects on photocatalytic degradation of organic dyes using novel photocatalytic techniques such as metallic nanoparticles, heterogeneous and hybrid systems using visible light irradiation. It highlights the most recent scientific and technological achievements and importance of degradation of dyes in the textile effluent by simple environmental friendly approaches using eco-friendly catalysts. It is of assistance to everyone interested in bioremediation of effluents: professionals, consulting engineers, academicians, and research scholars as well. Describes the basic photocatalytic techniques and their application in wastewater treatment Covers the key reactive species accounting for the photodegradation of different dyes, providing helpful guidelines that could be applied to foster the development of efficient photodegradation systems Includes Description of a wide variety of catalysts and their application in degradation of dyes in the effluent of variable matrices (such as textile effluent, pharmaceutical industry effluent, food industry effluent) Presents the application of doped semiconductors in the degradation of dyes, hybrid systems and their importance in the dye degradation Describes the biological synthesis of metallic nanostructures and their use in dye degradation using visible range of light irradiation Discusses the mechanistic aspect of the dye degradation using photo catalysts
| Author | : Ahmet Gürses |
| Publisher | : Springer |
| Total Pages | : 88 |
| Release | : 2016-05-04 |
| Genre | : Science |
| ISBN | : 3319338927 |
In this book the authors go back to basics to describe the structural differences between dyes and pigments, their mechanisms of action, properties and applications. They set the scene by explaining the reasons behind these differences and show how dyes are predominately organic compounds that dissolve or react with substrates, whereas pigments are (predominantly) finely ground inorganic substances that are insoluble and therefore have a different mode of coloring. They also describe the role of functional groups and their effect on dyeing ability, contrasting this with the way in which pigments cause surface reflection (or light absorption) depending on their chemical and crystalline structure and relative particle size. The book explores the environmental impact of dyes in a section that covers the physical, chemical, toxicological, and ecological properties of dyes and how these are used to assess their effect on the environment and to estimate whether a given product presents a potential hazard. Lastly, it assesses how, in addition to their traditional uses in the textile, leather, paper, paint and varnish industries, dyes and pigments are indispensable in other fields such as microelectronics, medical diagnostics, and in information recording techniques.
| Author | : Futoshi Kurisu |
| Publisher | : Springer |
| Total Pages | : 247 |
| Release | : 2016-09-29 |
| Genre | : Science |
| ISBN | : 331939259X |
This book brings together and integrates contributions on water quality modeling, monitoring and assessment techniques; wastewater treatment technologies; and sociological approaches in a single text. Divided into twenty chapters, it offers a comprehensive reference for students, professionals and researchers working on various aspects of water environment technology. The papers published in this book – selected from those presented at the 1st International Forum on Asian Water Environment Technology, held in 2013 in New Delhi, India – highlight the water environmental problems in Asia and respective countermeasures. This book addresses water quality requirements, emphasizing the factors that affect the water environment. Treated wastewater as a new source of water is also examined, introducing readers to important aspects of water reuse. Selecting the most effective and proper wastewater treatment approach is actually the most essential part of generating a new water resource, as well as protecting the receiving water environments. Thus, the fundamental principles of wastewater treatment and monitoring are a major focus in this book, which is intended to help readers effectively address various water environmental problems in Asian countries.
