Aerobic Biodegradation of Methyl tert -Butyl Ether by Aquifer Bacteria from Leaking Underground Storage Tank Sites

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Aerobic biodegradation of methyl tert-butyl ether by aquifer bacteria from leaking underground storage tank sites.

The potential for aerobic methyl tert-butyl ether (MTBE) degradation was investigated with microcosms containing aquifer sediment and groundwater from four MTBE-contaminated sites characterized by oxygen-limited in situ conditions. MTBE depletion was observed for sediments from two sites (e.g., 4.5 mg/liter degraded in 15 days after a 4-day lag period), whereas no consumption of MTBE was observ...

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Methyl tert-butyl ether (MTBE) was originally introduced as an additive to increase octane number into gasoline in the 1970s. Its use was primarily as an octane enhancer to replace lead in gasoline. Later on, it was also used as an oxygenate, up to 15% v/v, to accomplish a cleaner burning fuel with reduced emissions of carbon monoxide and hydrocarbons. The problem with MTBE is that it has cause...

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Biodegradation of methyl tert-butyl ether under various substrate conditions.

Five aerobic enrichments efficient at degrading methyl tert-butyl ether (MTBE) under different substrate conditions were developed in well-mixed reactors containing a polyethlene porous pot for biomass retention. The five substrate conditions were as follows: MTBE alone; MTBE and diethyl ether (DEE); MTBE and diisopropyl ether (DIPE); MTBE and ethanol (EtOH); and MTBE with benzene, toluene, eth...

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rapid biodegradation of methyl tert-butyl ether (mtbe) by pure bacterial cultures

two pure bacterial strains capable of rapid degrading methyl tert–butyl ether (mtbe) were isolated from an industrial wastewater treatment plant, identified and characterized. these strains are able to grow on mtbe as the sole carbon and energy sources and completely mineralize it to the biomass and carbon dioxide. the strains were identified as bacillus cereus and klebsiella terrigena. both st...

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ژورنال

عنوان ژورنال: Applied and Environmental Microbiology

سال: 2001

ISSN: 0099-2240,1098-5336

DOI: 10.1128/aem.67.12.5824-5829.2001