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Soil & Groundwater E-Zine September 2010 |
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| This Month´s Featured Articles, Papers & Reports |
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Accelerated Site Cleanup Using a Sulfate-Enhanced In Situ
Soil and groundwater clean-up is critical to sustainable business practices across many industries. The conventional wisdom for remediation of aquifers contaminated with petroleum hydrocarbons (PHCs) is to add oxygen. A paradigm shift in the remediation of petroleum hydrocarbons has occurred that employs a sulfate-enhanced in situ remediation strategy. It was once thought that aromatic hydrocarbons do not biodegrade under anaerobic conditions. However, the importance of ... |
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Biotic and abiotic anaerobic transformations of trichloroethene and cis-1,2-dichloroethene in fractured sandstone
A fractured sandstone aquifer at an industrial site in southern California is contaminated with trichloroethene (TCE) and cis- 1,2-dichloroethene (cis-DCE) to depths in excess of 244 m. Field monitoring data suggest thatTCEis undergoing reduction to cis- DCE and that additional attenuation is occurring. However, vinyl chloride (VC)andethenehavenotbeendetected in significant amounts, so that if transformation is occurring, a process other than reductive dechlorination must be responsible. The objective ... |
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