U.S.-Korea Cooperative Research: Modeling of Reductive Dechlorination of Chlorinated Ethenes

0003928麦卡蒂这个奖项支持教授佩里L。美国斯坦福大学西部地区有害物质研究中心主任McCarty博士与韩国仁荷大学环境工程系Jaeho Bae博士合作开展研究。 这项联合研究将调查氯化乙烯的生物降解过程。 该项目的主要目标包括开发一个数字模型，该模型综合了氯化乙烯还原脱氯过程中涉及的许多因素，并利用实地数据验证该模型。由于其在工业中的广泛使用，氯化乙烯已成为地下水和土壤的主要污染物。 受氯化乙烯污染的地下水的修复非常困难，因为它们密度大，仅部分溶于水，并且相对不易于化学和生物降解。 然而，生物还原脱氯是污染场地生物修复的有前途的方法之一，因为与化学和物理处理相比，它可能具有成本效益，并且由于污染物降解为无毒乙烯，因此也是环境友好的。 还原脱氯涉及的多个过程非常复杂，我们对这一过程的了解仍然相当有限。 该项目将联合收割机结合美国和韩国实验室的互补专业知识和设施，以促进我们对这一过程的相互理解。

0003928McCartyThis award supports Professor Perry L. McCarty, Director of the Western Region Hazardous Substance Research Center, Stanford University, to conduct collaborative research with Dr. Jaeho Bae, Department of Environmental Engineering, Inha University, Korea. The joint study will investigate the process of biological degradation of chlorinated ethenes. Principal objectives of the project include development of a numerical model that integrates the many factors involved in the reductive dechlorination of chlorinated ethenes, and to verify the model using field data. Because of their wide use in industry, chlorinated ethenes have become major contaminants of groundwater and soil. Remediation of groundwater contaminated with chlorinated ethenes is very difficult because they are dense, only partially soluble in water, and relatively resistant to chemical and biological degradation. Nevertheless, biological reductive dechlorination is one of the promising methods for bioremediation of contaminated sites, as it may be cost-effective compared to chemical and physical treatment, and it is also environmentally friendly as contaminants are degraded into non-toxic ethene. The multiple processes involved in reductive dechlorination are highly complex, and our knowledge of this process is still rather limited. This project will combine the complementary expertise and facilities of the American and Korean laboratories to advance our mutual understanding of the process.