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BIOTRANSFORMATION OF GASOLINE-CONTAMINATED GROUNDWATER UNDER MIXED ELECTRON-ACCEPTOR CONDITIONS
Citation:
Barbaro, J. R., B. J. Butler, AND J. F. Barker. BIOTRANSFORMATION OF GASOLINE-CONTAMINATED GROUNDWATER UNDER MIXED ELECTRON-ACCEPTOR CONDITIONS. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-99/012 (NTIS 99-139677), 1999.
Impact/Purpose:
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Description:
This project represents a cooperative effort between the University of Waterloo and the U.S. Environmental Protection Agency. This report summarizes research conducted using both laboratory batch microcosms and field-scale sheet-piling cells to evaluate whether bioremediation of monoaromatic fuel hydrocarbons can be enhanced using mixed rather than single electron acceptors. The studies focused on nitrate for anaerobic bioremediation and oxygen for aerobic bioremediation, and experiments were designed to test the hypothesis that low levels of oxygen may enhance biodegradation of more recalcitrant compounds (such as benzene) under denitrifying conditions. The findings from this project are directly applicable to the field-scale remediation of subsurface environments contaminated by petroleum hydrocarbons.