Kumar, Abhijeet and Nidheesh, P. V. and Kumar, Suresh M. (2018) Composite wastewater treatment by aerated electrocoagulation and modified peroxi-coagulation processes. Chemosphere, 205. pp. 587-593. ISSN 0045-6535

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Abstract

Treatment of composite wastewater generating from the industrial estates is a great challenge. The present study examines the applicability of aerated electrocoagulation and modified peroxi-coagulation processes for removing color and COD from composite wastewater. Iron plates were used as anodes and cathodes in both electrochemical processes and experiments were carried out in a working volume of 2 L. Aeration enhanced the efficiency of electrocoagulation process significantly. More than 50% of COD and 60% of color were removed after 1 h of electrocoagulation process operated at pH 3 and applied voltage of 1 V. Efficiency of the modified peroxi-coagulation process was significantly higher than that of aerated electrocoagulation. COD and color removal efficiencies of the modified peroxi-coagulation process were found as 77.7% and 97%, respectively after 1 h of electrolysis operated at 1 V, solution pH 3 and 50 mM hydrogen peroxide addition. This improved efficiency of modified peroxi-coagulation compared to aerated electrocoagulation is mainly due to the attack of in-situ generated hydroxyl radicals

Item Type:	Article
Uncontrolled Keywords:	Composite Wastewater; Electrocoagulation; Peroxi-coagulation; HydroxyL Radical; Wastewater Treatment
Subjects:	Industrial Wastewater Treatment & Disposal Waste Water Treatment
Divisions:	UNSPECIFIED
Depositing User:	Dr. Nidheesh P V
Date Deposited:	18 Jan 2021 12:03
Last Modified:	18 Jan 2021 12:03
URI:	http://neeri.csircentral.net/id/eprint/1260

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