Chlorinated ethene plume migration in groundwater at Free-Phase Petroleum Sites
Chlorinated ethenes (trichloroethylene, tetrachloroethylene, Cis-DCE and Vinyl Chloride) are some of the most prevalent organic groundwater contaminants in the world and may evolve into extensive groundwater plumes. However, if areas of free-phase petroleum are present within the boundaries of a chlorinated ethene plume (e.g. at gasoline stations), there may be significant depletion of the chlorinated organics through geochemical interactions between chlorinated ethenes and the petroleum. The velocity of chlorinated ethenes passing through free-phase petroleum may decrease significantly, causing a localized increase in the chlorinated ethene concentrations. The result may be that localized increases in chlorinated ethene concentrations may be orders of magnitude greater within the free-phase petroleum than concentrations immediately upgradient of the free-phase petroleum zone. Further, there may be significant depletion of the chlorinated ethene groundwater plume on the downgradient side of the free-phase petroleum.
E.McBean
School of Engineering, University of Guelph, Guelph, Ontario, Canada
国际会议
武汉
英文
535-537
2009-09-20（万方平台首次上网日期，不代表论文的发表时间）