Degradation of Methyl Red using Fenton's reagent and the effect of various salts

S. Salman Ashraf, Muhammad A. Rauf, Seham Alhadrami

Research output: Contribution to journalArticlepeer-review

107 Citations (Scopus)

Abstract

Waste effluents from textile industries are a major source of water pollution. These waste streams contain numerous toxic dyes, which are resistant to natural breakdown and degradation. Therefore, there is a need to find economical and bio-friendly methods to degrade textile dyes. In this study, degradation of Methyl Red, an azo dye, was studied using the ferrous-hydrogen peroxide system. The oxidation and subsequent degradation of the dye was found to be dependent on both the amount of Fe2+ ions as well as hydrogen peroxide. In order to study the effect of other salts that are normally present in textile waste streams, a systematic study was carried out using 10 different salt solutions. Some of the ions tested enhanced the rate and extent of degradation of the dye, whereas some had an inhibitory effect. The rates of degradation were found to fit to first-order kinetics.

Original languageEnglish
Pages (from-to)74-78
Number of pages5
JournalDyes and Pigments
Volume69
Issue number1-2
DOIs
Publication statusPublished - 2006

Keywords

  • Decolourization
  • Dye degradation
  • Fenton's reagent
  • Hydrogen peroxide
  • Methyl Red
  • Textile waste

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Process Chemistry and Technology

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