Providing safe drinking water is one of the top priorities for scientists and industrialists working on humanitarian projects, and one particular problem is the contamination of groundwater with toxic organic and inorganic compounds released by various industries. The presence of contaminants or industrial effluents in drinking water systems has increasingly become a major environmental challenge. To address the problem, a number of methods, including ion exchange, membrane filtration, advanced oxidation, biological degradation, photocatalytic degradation, electro-coagulation, and adsorption, are in operation for removing or minimizing these wastes. The purification process of wastewater using conventional methods has proved to be markedly ineffective, very difficult, and highly expensive. On the other hand, for the remediation of water resources, a concept like green chemistry, based on the application of biological agents including polymers, bacteria, and fungi, has received great scientific attention as it helps to avoid the toxic by-products of conventional techniques and enhances eco-friendly wastewater treatment approaches. This book, Green Chemistry for Sustainable Water Purification, is written with the goal of providing significant and up-to-date research advances on chemical water treatments based on green materials and nanocomposites. Specifically, several case studies have been included to demonstrate the feasibility of low-cost materials for the successful treatment of organic and inorganic contaminants.

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