Degradation of the endocrine disruptor carbofuran by UV, O3 and O3/UV

T. K. Lau, Wei Chu, N. Graham

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

25 Citations (Scopus)

Abstract

The photodegradation of a carbamate insecticide, Carbofuran (CBF), which has been recognised as a potential endocrine disrupting chemical, was studied via different wastewater treatment processes. This study has shown the efficiency of advanced oxidation process, AOP (UV/O3) than those of the direct UV photolysis and ozonation process, by completely removing 0.2 mM CBF and achieving 24% mineralisation within 30 min. The initial decay of CBF by UV/O3 accelerated from 0.05 to 0.16 min-1 as the initial pH increasing from 3.0 to 11.3. The pH-dependency of CBF has also been shown in both ozonation and UV/O3 process. A linear relationship could be found for the latter process in all pH, while for the former process, two stages of reactions (steady and accelerating) were found in the acidic and alkaline pH condition, respectively.
Original languageEnglish
Title of host publicationOxidation Technologies for Water and Wastewater Treatment IV - Selected Papers of the 4th International Conference on Oxidation Technologies for Water and Wastewater Treatment
Pages275-280
Number of pages6
Edition12
DOIs
Publication statusPublished - 13 Aug 2007

Publication series

NameWater Science and Technology
Number12
Volume55
ISSN (Print)0273-1223

Keywords

  • Advanced oxidation process
  • Carbamates
  • Carbofuran
  • Endocrine disruptor
  • Ozone
  • Photolysis

ASJC Scopus subject areas

  • Water Science and Technology

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