Electrochemically activated persulfate and peroxymonosulfate for furfural removal: optimization using Box-Behnken design


Can-Guven E. , İLHAN F. , ALTUNTAŞ K. , YAZICI GÜVENÇ S. , VARANK G.

ENVIRONMENTAL TECHNOLOGY, 2021 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2021
  • Doi Number: 10.1080/09593330.2021.2000037
  • Title of Journal : ENVIRONMENTAL TECHNOLOGY
  • Keywords: Furfural, persulfate, peroxymonosulfate, electrochemical activation, Box-Behnken design, RESPONSE-SURFACE METHODOLOGY, ADVANCED OXIDATION, DEGRADATION PATHWAYS, SULFATE, ANODE, WATER, TETRACYCLINE, ELECTROOXIDATION, PEROXYDISULFATE, MECHANISM

Abstract

Furfural removal by electrochemically activated peroxydisulfate (E-PS) and peroxymonosulfate (E-PMS) was investigated. The effect of different anodes was investigated for the electrochemical activation of oxidants. Box Behnken Design was applied to determine optimum operating conditions, which were determined as follows; PS concentration: 2.3 mM, applied current: 1.15 A, pH: 3.5, and reaction time: 118.3 min for E-PS process; PMS concentration: 1.8 mM, applied current: 1.05 A, pH: 3.3, and reaction time: 107.8 min for E-PMS process. The results of the study showed that the E-PMS process is more advantageous in terms of the chemical and electricity costs to be used.