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- W2528609530 abstract "The creosote- and pentachlorophenol-contaminated aquifer at the Libby Superfund Site is being bioremediated using naturally occurring aerobic microorganisms. Water is injected into the aquifer downgradient from the major contaminant source area. Between January 1991 and May 1993, the injection water was amended with hydrogen peroxide at a delivered concentration of approximately 100 mg/L. Theoretically, this hydrogen peroxide decomposed in the aquifer to produce approximately 50 mg/L of biologically available dissolved oxygen. The use of hydrogen peroxide was successful in making portions of the aquifer aerobic, which reduced water-phase contaminant concentrations. In May 1993, the hydrogen peroxide system was replaced by an oxygen generation/dissolution system that reduced the operating costs for oxygenating the aquifer by about $35,000 annually. Oxygen is now generated on site by a pressure-swing absorption oxygen generator and is dissolved by four membrane oxygen dissolution devices. The membrane oxygen dissolution system has operated at the Libby Superfund site for more than 26 months with no loss in performance due to membrane fouling or membrane fatigue." @default.
- W2528609530 created "2016-10-14" @default.
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- W2528609530 date "1995-12-31" @default.
- W2528609530 modified "2023-09-23" @default.
- W2528609530 title "Membrane oxygen dissolution at the Libby, Montana, Superfund Site" @default.
- W2528609530 hasPublicationYear "1995" @default.
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