Read more
Informationen zum Autor Shahid-ul-Islam is a researcher at the Indian Institute of Technology, New Delhi. His current research interests include green chemistry, dyes & pigments, thermodynamics and kinetics of colorants, and polymeric nanocomposites. He has numerous academic publications in international journals of high repute to his credit. Klappentext This comprehensive book deals with the use of novel materials such as plant-derived agents and advanced nanocomposites for the removal of heavy metals, nitrates, and synthetic dyes. Water is an essential component for living organisms on planet earth and its pollution is one of the critical global environmental issues today. The influx of significant quantities of organic and inorganic waste, sediments, surfactants, synthetic dyes, sewage, and heavy metals into all types of water bodies has been increasing substantially over the past century due to rapid industrialization, population growth, agricultural activities, and other geological and environmental changes. These pollutants are very dangerous and are posing serious threat to us all. Advanced Materials for Wastewater Treatment brings together innovative methodologies and research strategies to remove toxic effluents from wastewaters. With contributions from leading scientists from all around the world, the book provides a comprehensive coverage of the current literature, up-to-date overviews of all aspects of toxic chemical remediation including the role of nanomaterials. Together they showcase in a very lucid manner an array of technologies that complement the traditional as well as advanced treatment practices of textile effluents. In particular, the book provides: Up-to-date overviews of all aspects of toxic chemical remediation The role of plants and abundantly available agro-wastes in the remediation of wastewater The removal of nitrates from wastewater using nanocomposites Audience Advanced Materials for Wastewater Treatment will be equally valuable to academicians, industry scientists and students involved with water treatment from a materials science, chemical engineering and nanotechnology perspective. Inhaltsverzeichnis Preface xv 1 Arsenic: Toxic Effects and Remediation 1 Sharf Ilahi Siddiqui and Saif Ali Chaudhry 1.1 Introduction 1 1.2 Arsenic Concentration in Water 2 1.3 Exposure of Arsenic in Human Body 3 1.4 Metabolism and Excretion of Arsenious Compounds 4 1.5 Arsenic Toxicity and Mechanism 6 1.5.1 Oxidative Stress 6 1.5.2 Binding to Sulfhydryl Group 7 1.5.3 Replacement of Phosphate Group 8 1.5.4 Alternation in the Gene Expression 9 1.5.5 Arsenic Impairs Glucose Catabolism 9 1.6 Detoxification of Arsenic 10 1.6.1 Antioxidants Agents 10 1.6.2 Chelating Agents 11 1.7 Arsenic Remediation Technologies 12 1.8 Adsorption and Recent Advancement 15 1.9 Conclusion 16 Acknowledgment 17 Abbreviations 17 References 18 2 Recent Trends in Textile Effluent Treatments: A Review 29 Shumaila Kiran, Shahid Adeel, Sofia Nosheen, Atya Hassan, Muhammad Usman and Muhammad Asim Rafique 2.1 Introduction 30 2.2 Industrial Dyes, Dying Practices, and Associated Problems 31 2.3 Wastewater Remediation 31 2.4 Physical Methods 33 2.4.1 Adsorption 35 2.4.2 Coagulation and Flocculation 35 2.4.3 Membrane Processes 35 2.4.4 Ultra Filtration 36 2.4.5 Micellar-Enhanced Ultrafiltration (MEUF) 36 2.4.6 Reverse Osmosis 36 2.4.7 Nanofiltration 37 2.5 Chemical Methods 37 2.5.1 Photo Catalytic Degradation of Dyes 37 2.5.2 Oxidation and Photocatalysis with Hydrogen Peroxide 38 2.5.3 Ozonation 39 2.5.4 Degradation of Dyes Using Sodium Hypochlorite (NaOCl) 39 2....
