Evaluation of electrochemical peroxidation (ECP) process variables for removal of co-complex dye using a central composite design


PEKEY H.

DESALINATION AND WATER TREATMENT, vol.57, no.21, pp.9845-9858, 2016 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 57 Issue: 21
  • Publication Date: 2016
  • Doi Number: 10.1080/19443994.2015.1033466
  • Title of Journal : DESALINATION AND WATER TREATMENT
  • Page Numbers: pp.9845-9858

Abstract

In this study, electrochemical peroxidation was employed to remove color and total organic carbon (TOC) from co-complex (acid yellow 194) dye using iron electrodes in a batch-mode operation. The effects and relationships of the process variables were evaluated, and optimizations were carried out using response surface methodology to maximize removal efficiencies and minimize operating costs in relation to energy, electrode, and chemical (such as H2O2) consumptions. The initial pH (2.0-6.0 pH(i)), conductivity (500-2,500 mu S/cm, k), initial dye concentration (100-800mg/L, C-0), current density (10-30A/m(2), j), operating time (4-20min, t), and dosage of H2O2 (2-10mM or 175-860 mu L/L,