Degradation of aqueous Acid Red 183 textile dye and acid dye-bath effluent by Fenton-like and Photo-Fenton-like advanced oxidation processes


Arslan Alaton İ. , Tureli G.

FRESENIUS ENVIRONMENTAL BULLETIN, vol.17, pp.915-926, 2008 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 17
  • Publication Date: 2008
  • Title of Journal : FRESENIUS ENVIRONMENTAL BULLETIN
  • Page Numbers: pp.915-926

Abstract

The present experimental study aimed at investigating color and organic carbon (TOC, COD) removal from the chromium(III)-complex azo dye Acid Red 183 and a simulated acid dye-bath effluent using Fenton-like and Photo-Fenton-like processes. In the case of Acid Red 183 dye, the Fenton-like reagent was capable of 98% color and 56% TOC removal, after 40 min treatment under optimized working conditions (pH(o) 2.5; Fe-,o(3+) 3 mmol L-1; H2O2,o 30 mmol L-1 for 100 mg L-1 dye), whereas UV-A assisted Fenton-like treatment proceeded significantly faster. At pH(o) 2.8, Fe3+ (,o) 0.3 mmol L-1 and H2O2,o 30 mmol L-1, 48% color and 14% TOC removal rates were achieved after 20 min of Photo-Fenton like oxidation of 100 mg L-1 aqueous Acid Red 183, instead of only 23% color and 6% TOC removals obtained by the dark Fenton-like treatment for the same reaction period. For the stimulated acid dye-bath effluent subjected to Fenton-like treatment at varying Fe3+ concentrations, 86-97% color removal accompained with 47% COD abatement were obtained under the working conditions of pH(o) 3; Fe3+ (,o) 5 mmol L-1, amd H2O2,o 30 mmol L-1.