Enhancing the ozonation of industrial wastewater with electrochemically generated copper(II) ions. Issue 3 (11th February 2016)

• Record Type: Journal Article
• Authors: Carbajal, Carlos; Barrera-Díaz, Carlos; Roa-Morales, G.; Balderas-Hersnández, P.; Natividad, R.; Bilyeu, Bryan
• Is Part Of: Separation science and technology. Volume 51:Issue 3(2016)
• Page Start: 542
• Page End: 549
• Publication Date: 2016-02-11
• Subjects: Oxidation -- physicochemical treatment -- sludge reduction -- wastewater treatment; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2015.1086800
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: This study evaluates the effect of adding electrochemical copper(II) ions into an ozonation process for treating industrial wastewater. Combining the processes resulted in a synergy that enhanced the reduction of physicochemical parameters (COD, TOC, color, turbidity, Z-Potential, and conductivity). In only 15 minutes the integrated process reduced the COD by 83%, TOC by 78 %, color by 93%, turbidity by 77%, and conductivity by 27% at relatively low current density (12.5 mA cm −2 ). Thus, the combination of the electrochemical and ozonation processes noticeably improves wastewater quality, decreases the process time, and reduces the sludge production.