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Updated: Jul 7, 2026

Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
Electrocoagulation of vegetable oil refinery wastewater using aluminum electrodes
Umran Tezcan Un1, A Savas Koparal, Ulker Bakir Ogutveren
1Department of Environmental Engineering, Faculty of Engineering and Architecture, Anadolu University, 26470 Eskisehir, Turkiye. utezcan@anadolu.edu.tr
Abstract:
Electrocoagulation with aluminum electrodes was used to treat the vegetable oil refinery wastewater (VORW) in a batch reactor. The effects of operating parameters such as pH, current density, PAC (poly aluminum chloride) dosage and Na(2)SO(4) dosage on the removal of organics and COD removal efficiency have been investigated. It has been shown that the removal efficiency of COD increased with the increasing applied current density and increasing PAC and Na(2)SO(4) dosage and the most effective removal capacity was achieved at the pH 7. The results indicate that electrocoagulation is very efficient and able to achieve 98.9% COD removal in 90 min at 35 mAcm(-2) with a specific electrical energy consumption of 42 kWh(kgCOD(removed))(-1). The effluent was very clear and its quality exceeded the direct discharge standard.
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