An innovative aerobic cometabolism technique for rapid and costeffective remediation of chlorinated hydrocarbons and fluorocarbons in groundwater has been identified and tested at a Dow Chemical Company (DOW) facility in West Virginia. Bench scale testing was performed to refine the physical and mechanical aspects of the technique and to evaluate various products and mixtures to be used as the co-metabolite. A commercially available soy oil mixture was developed and used in a multi-step process that combines liquid/liquid extraction and co-metabolic processes to achieve rapid and highly cost-effective reduction in aquifer contaminant concentrations. Two field-scale tests were performed and the results monitored over an 8-month period. Field and laboratory data collected during the monitoring period indicate that the technique has been highly effective for the removal of carbon tetrachloride and trichlorofluoromethane. Decreases of greater than 99 percent in contaminant concentrations in individual wells and site-wide decreases of greater than 90 percent have been achieved in less than 8 months.
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机译：在西弗吉尼亚州西弗吉尼亚州的Dow Chemical Company（Dow）设施中，鉴定了一种创新的有氧Cometabolism技术，用于氯化烃和地下水中的氯化烃和氟碳化合物。进行卧位测量测试以优化该技术的物理和机械方面，并评估各种产品和混合物用作共代谢石。开发了市售的大豆混合物并用于组合液/液提取和共代谢过程的多步骤过程中，以实现含水层污染物浓度的快速和高度成本效益。进行了两个现场规模的测试，并在8个月内监测结果。在监测期间收集的现场和实验室数据表明该技术对除去氯化碳和三氯氟甲烷具有高效。在少于8个月内，在不到8个月内实现了个体井中的污染物浓度大于99％的污染物浓度大于99％。
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