A comparative study of electrocoagulation and electro-Fenton for food industry wastewater treatment: Multiple response optimization and cost analysis

VARANK G. , Guvenc S. Y. , DEMİR A.

SEPARATION SCIENCE AND TECHNOLOGY, vol.53, no.17, pp.2727-2740, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 53 Issue: 17
  • Publication Date: 2018
  • Doi Number: 10.1080/01496395.2018.1470643
  • Page Numbers: pp.2727-2740


In this study, response surface methodology was applied for food wastewater by electrocoagulation (EC) and electro-Fenton (EF) processes. The optimum conditions for the chemical oxygen demand (COD) removal were found to be 21.36 min, pH 10 and 86 mA/cm(2) in EC, whereas 27.11 min, pH 2.38, 86 mA/cm(2) and H2O2/COD:2 in EF process. COD removal efficiencies were determined to be 29.4% for EC and 59.1% for EF processes and higher than 99% total suspended solids removal efficiencies were achieved. It can be concluded that high COD removal was obtained (4998 mg/L COD removal by EC and 10,047 mg/L COD removal by EF).