Catalytic oxidative degradation of 4‐chlorophenol: Effect of operating parameters and prediction of intermediates/by‐products. Issue 6 (8th May 2017)

• Record Type: Journal Article
• Authors: Singh, Swati; Garg, Anurag
• Is Part Of: Environmental progress & sustainable energy. Volume 36:Issue 6(2017)
• Page Start: 1734
• Page End: 1742
• Publication Date: 2017-05-08
• Subjects: advanced oxidation -- fenton -- hydrogen peroxide -- chlorinated organic compounds -- wastewater treatment -- cupro‐fenton process -- carbon balance -- intermediates determination; Environmental engineering -- Periodicals; Sustainable engineering -- Periodicals; Environmental chemistry -- Periodicals; 333.7
• DOI: 10.1002/ep.12638
• Languages: English
• ISSNs: 1944-7442

Abstract

Abstract : The presence of chlorophenols (CP) in industrial wastewater is a major concern due to their microbial toxicity. The present study was performed to investigate the efficacy of advanced oxidation process (i.e., conventional and modified Fenton's process) for the degradation of 4‐chlorophenol (4‐CP) in an aqueous solution (concentration = 200 mg L −1 ) under varying reaction conditions. The decomposition of 4‐CP was confirmed by chemical oxygen demand (COD) reduction, total organic carbon (TOC) reduction, detection of low molecular weight carboxylic acids (such as oxalic, acetic, formic and malonic) and Cl ‐ concentration in the treated 4‐CP aqueous solution. The maximum COD and TOC reductions were 74% and 42% after 30 min of Fenton reaction at an initial pH, Fe 2+ concentration, and H2 O2 to Fe 2+ molar ratio of 3.0, 1.26 mM and 20, respectively which were found to increase to 79 and 55%, respectively when Cu 2+ was also added with Fe 2+ during modified Fenton process. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 1734–1742, 2017