Pathways for the degradation of MTBE and other fuel oxygenates by isolate PM1

Clinton D. Church, Paul G. Tratnyek, Kate M. Scow

Research output: Contribution to journalArticle

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Abstract

To help characterize the pathways of MTBE degradation by PM1 (a strain of bacteria isolated from a compost biofilter at the Los Angeles County Joint Water Pollution Control Plant in Carson, CA), direct aqueous injection (DAI) GC/MS was used to determine the degradation products of MTBE, TAME, ETBE, di-isopropyl ether (DIPE), tert-amyl alcohol (TAA), and tert-butyl alcohol (TBA). The DAI technique allowed simultaneous quantification of reactants and products and monitoring of the reaction over a wide range of concentrations. TBA was an intermediate in the degradation pathways for MTBE and ETBE, and TAA was an intermediate in the degradation pathway for TAME. PM1 rapidly mineralized MTBE under favorable conditions (aerobic conditions and in the absence of more favorable substrates). The rates of degradation of TAME, ETBE, TBA by PM1 were of the same order of magnitude as the degradation rate for MTBE.

Original languageEnglish (US)
Pages (from-to)261-263
Number of pages3
JournalACS Division of Environmental Chemistry, Preprints
Volume40
Issue number1
StatePublished - Mar 26 2000
Event219th ACS National Meeting - San Francisco, CA, United States
Duration: Mar 26 2000Mar 30 2000

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ASJC Scopus subject areas

  • Chemical Engineering(all)

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