Mineralization of alkyd resin wastewater: Feasibility of different advanced oxidation processes. Issue 3 (June 2018)

• Record Type: Journal Article
• Authors: Kausley, Shankar B.; Desai, Ketan S.; Shrivastava, Surabhi; Shah, Parth R.; Patil, Bhagwat R.; Pandit, Aniruddha B.
• Is Part Of: Journal of environmental chemical engineering. Volume 6:Issue 3(2018)
• Page Start: 3690
• Page End: 3701
• Publication Date: 2018-06
• Subjects: Alkyd resin wastewater -- Advanced oxidation processes -- Fenton process -- Ozonation -- Electro-oxidation -- Cavitation; Chemical engineering -- Environmental aspects -- Periodicals; Environmental engineering -- Periodicals; Chemical engineering -- Environmental aspects; Environmental engineering; Periodicals; 660.0286
• DOI: 10.1016/j.jece.2017.04.001
• Languages: English
• ISSNs: 2213-2929

Abstract

Graphical abstract: Abstract: In the present study, different advanced oxidation processes (AOPs) are compared for their feasibility for mineralization of alkyd resin wastewater. The AOPs studied include: Fenton process, combined ozonation (O3 ) and hydrogen peroxide (H2 O2 ), electro-oxidation (EO), wet air oxidation and cavitation using ultrasonic horn (US). The studied AOPs in the order of increasing electrical energy consumption per unit mass of TOC removal (EEM ) are: Fenton process (18 kWh/kg), EO (83.58 kWh/kg), combined EO and O3 (187 kWh/kg), wet air oxidation (429 kWh/kg), combined O3 and H2 O2 at pH 8 (477 kWh/kg), combined US, O3 and H2 O2 at pH 8 (776 kWh/kg) and US alone at pH 8 (990 kWh/kg). Among the studied AOPs and their combinations, the combined O3 and H2 O2 is most promising as it doesn't suffer from complex formation issues as in the Fenton process, EO and combined EO and O3, requires lower fixed cost as compared to wet air oxidation and requires less EEM as compared to combined US, O3 and H2 O2 and US alone.