Treatment of 2-chlorophenol aqueous solutions by wet oxidation

S. G. Poulopoulos, C. A. Korologos, A. Boulamanti, C. J. Philippopoulos

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In the present work, the wet oxidation (WO) of 2-chlorophenol (2-CP) was studied in aqueous solutions, in a high-pressure agitated autoclave reactor. Specifically, the effect of temperature (160-190 °C), oxygen partial pressure (5-40 bar) and 2-CP initial concentration (250-1500 mg L-1) was examined. The process was attended via total organic carbon (TOC), 2-CP, chloride ion, acetic acid, formic acid and pH measurements. Significant rates of 2-CP disappearance and TOC removal were achieved above 170 °C. A decrease in 2-CP initial concentration below 1000 mg L-1 resulted in a dramatic decrease in the TOC removal achieved, whereas an increase in oxygen partial pressure enhanced greatly the decontamination of the 2-CP aqueous solution, especially from 10 to 20 bar. Much attention was given on the chloride ion removal from the phenolic ring in order to attend the dechlorination of 2-CP during WO. In the WO process, the majority of chloride ions were detached from organic compounds. Finally, a parallel and in series reaction scheme has been proposed for the interpretation of the experimental results.

Original languageEnglish
Pages (from-to)1263-1268
Number of pages6
JournalWater Research
Volume41
Issue number6
DOIs
Publication statusPublished - Mar 2007
Externally publishedYes

Fingerprint

chlorophenol
Organic carbon
aqueous solution
oxidation
Partial pressure
Oxidation
Ions
Dechlorination
Oxygen
total organic carbon
Decontamination
Formic acid
Autoclaves
Organic compounds
Acetic acid
chloride
partial pressure
ion
oxygen
formic acid

Keywords

  • Chlorinated compounds
  • WO

ASJC Scopus subject areas

  • Earth-Surface Processes

Cite this

Treatment of 2-chlorophenol aqueous solutions by wet oxidation. / Poulopoulos, S. G.; Korologos, C. A.; Boulamanti, A.; Philippopoulos, C. J.

In: Water Research, Vol. 41, No. 6, 03.2007, p. 1263-1268.

Research output: Contribution to journalArticle

Poulopoulos, SG, Korologos, CA, Boulamanti, A & Philippopoulos, CJ 2007, 'Treatment of 2-chlorophenol aqueous solutions by wet oxidation', Water Research, vol. 41, no. 6, pp. 1263-1268. https://doi.org/10.1016/j.watres.2006.12.038
Poulopoulos, S. G. ; Korologos, C. A. ; Boulamanti, A. ; Philippopoulos, C. J. / Treatment of 2-chlorophenol aqueous solutions by wet oxidation. In: Water Research. 2007 ; Vol. 41, No. 6. pp. 1263-1268.
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