Dyes are versatile compounds that have been successfully used in textile printing, rubber, cosmetics, plastic, pharmaceutical, and leather industries to color the products. Dye-using industries, particularly textile or printing industries are responsible for the generation of a great amount of colored wastewater that are polluting and threatening the environment. Many of these dyes are carcinogenic, mutagenic, and teratogenic, as well as harmful to human, aquatic life, and other living things and their elimination from wastewater is highly essential. Various approaches have been implemented in the efforts to mitigate the issue related to textile wastewater, such as adsorption, biological processes, advanced oxidation processes, membrane technology, etc. In this Volume 1, the application of various types of polymers in different wastewater treatment technologies are presented. The synthesis procedure of some polymers, the polymer modification, the effect of operational parameters onpolymer efficiency, the interactions between polymers dyes, etc are discussed.

Ali Khadir is an environmental engineer and a member of the Young Researcher and Elite Club, Islamic Azad University of Shahre Rey Branch, Tehran, Iran. He has published several articles and book chapters in reputed international publishers, including Elsevier, Springer, Taylor& Francis, and Wiley. His articles have been published in journals with IF of greater than 4, including Journal of Environmental Chemical Engineering and International Journal of Biological Macromolecules. He also has been the reviewer of journals and international conferences. His research interests center on emerging pollutants, dyes, and pharmaceuticals in aquatic media, advanced water and wastewater remediation techniques and technology.

Dr. Subramanian Senthilkannan Muthu currently works for SgT Group as Head of Sustainability, and is based out of Hong Kong. He earned his PhD from The Hong Kong Polytechnic University, and is a renowned expert in the areas of EnvironmentalSustainability in Textiles& Clothing Supply Chain, Product Life Cycle Assessment (LCA) and Product Carbon Footprint Assessment (PCF) in various industrial sectors. He has five years of industrial experience in textile manufacturing, research and development and textile testing and over a decade's of experience in life cycle assessment (LCA), carbon and ecological footprints assessment of various consumer products. He has published more than 100 research publications, written numerous book chapters and authored/edited over 100 books in the areas of Carbon Footprint, Recycling, Environmental Assessment and Environmental Sustainability.

Polymer technology coupling with physical, chemical and biological methods in textile wastewater.- Evaluation of Fe-Mn-Zr Trimetal Oxide/ Polyaniline Nanocomposite as Potential Adsorbent for Abatement of Toxic Dye From Aqueous Solution.- Silica-polymer composite for dyes removal.- Polymer-based photocatalysis for remediation of wastewater contaminated with organic dyes.- Application of hybrid polymeric materials as photocatalyst in textile wastewater.- Synthesis of Pillared Clay Adsorbents and their Applications in Treatment of Dye Containing Wastewater.- Versatile Fabrication and Use of Polyurethane in Textile Wastewater Dye Removal via Adsorption and Degradation.- Application of Polymer/Carbon nanocomposite for Organic Wastewater Treatment.- Environmental issues concerned with Poly (vinyl alcohol) (PVA) in textile wastewater.- Nanoparticles Functionalized Electrospun Polymer nanofibers: Synthesis and Adsorptive Removal of Textile Dyes.