Integrated Electrochemical Degradation and Biodegradation for Treatment of Contaminated Groundwater

电化学降解和生物降解一体化处理受污染地下水

• 批准号: 0086839
• 负责人: Kenneth Reardon
• 金额: $ 9.99万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-15 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0086839&HistoricalAwards=false
• 关键词: Integrated; Electrochemical; Degradation; Biodegradation; Treatment

0086839 Reardon The objective of this research is to improve the efficacy of the in situ treatment of migrating plumes of contaminated ground water. The engineering technologies to be developed and synergistically combined are (1) electrochemical alteration of the local redox environment and (2) enhanced biodegradation. The envisioned implementation entails constructing a plume-intercept zone in which the augmented degradation of chlorinated pollutants (e.g. perchloroethene) occurs as ground water traverse the zone. The augmented destruction of contaminants is an anticipated outcome for two reasons. First, the reducing conditions generated at the cathodic surfaces inserted in the upstream side of the intercept zone will stimulate the development of bacterial populations that can dechlorinate the pollutants. Second, the oxidizing conditions generated in the down stream section of the zone in conjunction with the dechlorinated state of the pollutants will lead to accelerated mineralization. This grant is made pursuant to Solicitation NSF 00-49, New Technologies for the Environment. ***

[86839 .]本研究的目的是提高对受污染地下水迁移羽流的原位处理效果。需要开发和协同结合的工程技术有：(1)电化学改变局部氧化还原环境和(2)增强生物降解。设想的实施需要建立一个羽状截距区，其中氯化污染物（如过氯乙烯）在地下水穿过该区域时发生增强降解。由于两个原因，污染物的增强破坏是一个预期的结果。首先，在拦截区上游插入的阴极表面产生的还原条件将刺激细菌种群的发展，这些细菌种群可以对污染物进行脱氯。其次，该带下游段产生的氧化条件加上污染物的脱氯状态将导致矿化加速。这项拨款是根据征求NSF 00-49，环境新技术。＊＊＊