The effect of hydrogen peroxide on the degradation of methyl and ethyl tert-butyl ether in soils
Abstract:The degradation of the gasoline oxygenates, methyl tert-butyl ether (MTBE) and ethyl tert-butyl ether (ETBE) in soil systems was evaluated. The data indicated that MTBE and ETBE were chemically oxidized to tertiary butanol and acetone when H2O2 was added to soil microcosms containing aquifer material from an organic rich site. Identical reactions were observed when H2O2 was added to solutions containing soluble ferrous iron and either MTBE or ETBE. Chemical oxidation was influenced by the H2O2 concentration, pH, and the presence of ferrous iron but was independent of the iron concentration. Naturally occurring aerobic microcosms in the soil were able to degrade ETBE but not MTBE. Chemical oxidation coupled with an aerobic-anaerobic-biological cycle is proposed to describe a degradation pathway for ETBE in H2O2 amended soils.
Document Type: Research Article
Publication date: 1995-07-01
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