A disappearance model for the prediction of trichlorophenol ozonation

Wei Chu, C. C. Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

26 Citations (Scopus)

Abstract

The disappearance and modeling of the ozonation of 2,4,6-trichlorophenol (TCP) was studied under different initial TCP concentrations and initial pH levels. The ozonation of TCP was found to follow a pseudo-first-order reaction. The degradation rates increased with the initial pH, and decreased with initial TCP concentration. 2,6-Dichlorohydroquinone was identified as the major intermediate, indicating that dechlorination and hydroxylation co-occurred during TCP ozonation. A model was proposed to quantitatively predict the pseudo-first-order rate constants under different initial TCP concentration and different initial pH levels. The proposed model can successfully describe the reaction; therefore another practical equation was proposed to predict the TCP removal rate at any detention time, which has high potential for practical applications and reactor design.
Original languageEnglish
Pages (from-to)289-294
Number of pages6
JournalChemosphere
Volume51
Issue number4
DOIs
Publication statusPublished - 1 Jan 2003

Keywords

  • Modeling
  • Ozone
  • pH
  • Radical
  • TCP

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemistry(all)

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