Dehalogenation of chlorinated benzenes by iron sulfide

Junko Hara, Chihiro Inoue, Tadashi Chida, Yoshishige Kawabe, Takeshi Komai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Experimental studies of dehalogenation for chlorinated benzenes were conducted using iron sulfide (FeS2) at 25° C in pure water. Chlorinated benzenes are used as a model sample of persistent organic pollutants (POPs) and evaluate the dechlorination ability of natural metallic minerals for POPs. A total of 90 % of chlorinated benzenes are dechlorinated after a mere 10 days for mono-, di-, tri- chlorobenzenes and 1,2,3,4-, 1,2,3, 5tetrachlorobenzenes. Their dechlorination abilities are not sensitive to the difference in isomers. The other 1,2,4,5tetrachlorobenzene, pentachlorobenzene and hexachlorobenzene are also dechlorinated at about 10 to 30 % after 10 days. This dehalogenation is only utilized in the dissolution of natural metallic minerals. Metallic minerals such as iron sulfide are expected to have sufficient remediation ability not only for chemical treatment but also as a natural depollution mineral.

Original languageEnglish
Title of host publicationProceedings of the Second IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006
Pages239-243
Number of pages5
Publication statusPublished - 2007 Dec 1
Event2nd IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006 - Lanzarote, Canary Islands, Spain
Duration: 2006 Feb 62006 Feb 8

Other

Other2nd IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006
Country/TerritorySpain
CityLanzarote, Canary Islands
Period06/2/606/2/8

Keywords

  • Chlorinated benzenes
  • Dehalogenation
  • Iron sulfide
  • Natural attenuation

ASJC Scopus subject areas

  • Computer Science(all)
  • Environmental Science(all)

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