Photochemical treatment of phenol aqueous solutions using ultraviolet radiation and hydrogen peroxide

S. G. Poulopoulos, F. Arvanitakis, C. J. Philippopoulos

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The potential of purifying phenol aqueous solutions (0.0006-0.0064 M) using ultraviolet (UV) radiation and hydrogen peroxide (H2O2; 0.005-0.073 M) was investigated. Although the direct photolysis of phenol and its oxidation by hydrogen peroxide (without ultraviolet light) were insignificant, the combination of UV and H2O2 was extremely effective on phenol degradation. However, the chemical oxygen demand was on no occasion entirely eliminated, indicating the resistance of the intermediate products formed to the photo-oxidation. Increasing the initial concentration of phenol had as a result lower phenol conversions achieved, whereas the increase in hydrogen peroxide initial concentration enhanced significantly the degradation of phenol. In contrast, COD removal was less sensitive to these changes.

Original languageEnglish
Pages (from-to)64-68
Number of pages5
JournalJournal of Hazardous Materials
Volume129
Issue number1-3
DOIs
Publication statusPublished - Feb 28 2006

Keywords

  • Ho
  • Hydrogen peroxide
  • Hydroxyl radical
  • Photo-oxidation

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

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