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Degradation Mechanism of Pollutants Using Sono-hybrid Advanced Oxidation Processes

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Water Pollution and Remediation: Photocatalysis

Part of the book series: Environmental Chemistry for a Sustainable World ((ECSW,volume 57))

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Abstract

Water is one of the essential components of our daily lives especially in agriculture, domestic care, and process industry. Though the world is covered with almost 70% of water, only 1% of water is accessible out of 2.5% freshwater.  Therefore, it is very essential to recycle water to fulfill the demand of the growing population. On the other hand, many chemical process industries including textile are discharging wastewater directly to the environment without any proper treatment which causes contamination of surface water as well as groundwater including the rivers. Therefore, treatment of wastewater has become a concern of the scientific community.

This chapter also provides a brief introduction of advanced techniques for treatment of contaminated water including the synergistic effect of hybrid processes. Also, a detailed discussion on the effect of negative synergy due to simultaneous application of more than a single advanced technique has been presented. For effective and efficient treatment of wastewater, different hybrid techniques have been employed, and the degree of mineralization was estimated. Under the sono-hybrid technique, more than 90% of degradation was obtained within 30 min of treatment in most of the homogeneous hybrid techniques. However, the maximum total organic carbon removal of 68.4% was achieved with the sono-persulfate oxidation process.

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Correspondence to Sankar Chakma .

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Chakma, S., Upadhyay, P., Alawa, B. (2021). Degradation Mechanism of Pollutants Using Sono-hybrid Advanced Oxidation Processes. In: Inamuddin, Ahamed, M.I., Lichtfouse, E. (eds) Water Pollution and Remediation: Photocatalysis. Environmental Chemistry for a Sustainable World, vol 57. Springer, Cham. https://doi.org/10.1007/978-3-030-54723-3_6

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