Sonolytic degradation of hazardous organic compounds in aqueous solution

H. Okuno, B. Yim, Y. Mizukoshi, Y. Nagata, Y. Maeda

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

Benzene, chlorobenzene, 1,2-, 1,3-, 1,4-dichlorobenzene, biphenyl, and polychlorinated biphenyls such as 2-, 4-chlorobiphenyl and 2,2'- dichlorobiphenyl in aqueous solutions have been subjected to sonolysis with 200 kHz ultrasound at an intensity of 6 W cm-2 under an argon atmosphere. 80-90% of initial amount of these compounds were degraded by 30-60 min of sonication when the initial concentrations were 10-100 μmol l-1. The degradation rate of these compounds increased with increase in their vapor pressures. In all cases of sonolysis of chlorinated organic compounds, an appreciable amount of liberated chloride ion was observed. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)261-264
Number of pages4
JournalUltrasonics Sonochemistry
Volume7
Issue number4
DOIs
Publication statusPublished - 2000 Oct

Keywords

  • Chlorinated organic compounds
  • OH radical
  • PCBs
  • PCDDs
  • Pyrolysis
  • Sonolysis

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Chemistry
  • Radiology Nuclear Medicine and imaging
  • Acoustics and Ultrasonics
  • Organic Chemistry
  • Inorganic Chemistry

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