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 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 53 Issue: 17
  • Publication Date: 2018
  • Doi Number: 10.1080/01496395.2018.1470643
  • Journal Name: SEPARATION SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2727-2740
  • Keywords: Food industry wastewater, electrocoagulation, electro-Fenton, RSM, optimization, SURFACE METHODOLOGY, ELECTROCHEMICAL TREATMENT, EXPERIMENTAL-DESIGN, ADVANCED OXIDATION, LANDFILL LEACHATE, REMOVAL, METAL, COD, REDUCTION, ALUMINUM
  • Yıldız Technical University Affiliated: Yes

Abstract

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).