Title: Effect of Ni coating on iron electrode for COD removal of textile dye waste water

Authors: Jay B. Trivedi; Paresh H. Rana; Lakha V. Chopda

Addresses: Chemical Engineering Department, Vishwakarma Government Engineering College, Chandkheda, Ahmedabad – 382424, India ' Chemical Engineering Department, Government Engineering College, Bhuj 370001, India ' Chemical Engineering Department, Government Engineering College, Bhuj 370001, India

Abstract: The textile dye-based intermediate industries generate colossal amount of effluent which is a blasphemy to the environment and to the residing areas where it get disposed of without commensurate treatment. These contagious and malefic effluents are peculiarising by high values of COD, BOD, colour, pH and other parameters. In environmental chemistry, chemical oxygen demand (COD) is the quantity of specified oxidant that reacts with sample under controlled conditions. This study focuses on electrochemical treatment, abating COD to much lesser permissible value. The various parameters that affect the process were thoroughly studied. The process was carried out with Ni plated iron/pure iron and pure iron/pure iron cathode and anode combinations with H₂O₂ addition. The removal efficiency up to 90% was achieved using H₂O₂, with different plating concentration of nickel over iron plate efficiency reached to 82% and with only iron plates, 55% efficiency achieved.

Keywords: waste water; chemical oxygen demand; COD; electrochemical treatment; effect of parameters; removal efficiency; Fenton's reagents species; green chemistry.

DOI: 10.1504/IJEWM.2018.092719

International Journal of Environment and Waste Management, 2018 Vol.21 No.2/3, pp.95 - 101

Received: 31 Jan 2017
Accepted: 21 Feb 2018
Published online: 28 Jun 2018 *

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