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Photo-oxidation Technologies for Advanced Water Treatment

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Advanced Nano-Bio Technologies for Water and Soil Treatment

Abstract

Providing a sustainable source of clean and fresh water represents the most serious global challenge facing humanity today. Major factors that contribute towards impairing the quality of water are industrial and agricultural runoffs containing toxic contaminants including dyes, pesticides, and other organic moeities. They have identified to be highly problematic since they enter the food chain, which leads to a large number of disorders. Such a critical issue indeed calls for urgent action. The need to address this challenge has also been reflected in the 2030 Agenda for Sustainable Development, which ranks water quality among the 17 primary goals. Photo-oxidation technologies that rely on the power of absorbed ultraviolet components of solar radiation to oxidize or reduce different substances in diverse environmental strata have emerged as one of the most promising and economically viable techniques for advanced water cleanup. This chapter provides a detailed account of the progress that has been made in this field ranging from the fundamental concept behind the UV radiation mediated processes to all the engineered photooxidative technologies that are widely employed. A special emphasis is put on various potential and commercial photocatalytic reactors that have been designed with the specific aim of degrading pollutants. In addition, a special section has been devoted to the recently developed nano-photocatalytic systems that offer excellent prospects for managing water pollution. A few case studies illustrate practical implementation of UV-oxidation processes by leading companies such as Merck & Co., BASF, and GlaxoSmithKline.

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Correspondence to Manoj B. Gawande .

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Sharma, R.K., Arora, B., Dutta, S., Gawande, M.B. (2020). Photo-oxidation Technologies for Advanced Water Treatment. In: Filip, J., Cajthaml, T., Najmanová, P., Černík, M., Zbořil, R. (eds) Advanced Nano-Bio Technologies for Water and Soil Treatment. Applied Environmental Science and Engineering for a Sustainable Future. Springer, Cham. https://doi.org/10.1007/978-3-030-29840-1_10

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