Effects of electron acceptor and electron donor on biodegradation of CCl 4 by biofilms

Wookeun Bae, Bruce Rittmann

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

11 Scopus citations

Abstract

Biodegradation of carbon tetrachloride (CTC) in denitrifying and aerobic columns was investigated under various conditions of electron-acceptor and electron-donor availability. CTC removal increased when the electron-acceptor (nitrate) injection was stopped in the denitrifying column; however, CTC removal decreased when electron donor (acetate) was deleted in the denitrifying and the aerobic column. Small fractions of the CTC removed appeared as chloroform, indicating that reductive dechlorination of CTC was occurring. The results from the denitrifying column support the hypothesis that CTC behaves as an electron acceptor that competes for the pool of available electrons inside the bacterial cells.

Original languageEnglish (US)
Title of host publicationNational Conference on Environmental Engineering
PublisherPubl by ASCE
Pages390-397
Number of pages8
StatePublished - 1990
Externally publishedYes
EventProceedings of the 1990 Specialty Conference - Arlington, VA, USA
Duration: Jul 8 1990Jul 11 1990

Other

OtherProceedings of the 1990 Specialty Conference
CityArlington, VA, USA
Period7/8/907/11/90

ASJC Scopus subject areas

  • Environmental Engineering
  • Engineering(all)

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