Integrated Electrochemical Degradation and Biodegradation for Treatment of Contaminated Groundwater

0086839 Reardon这项研究的目的是提高就地处理受污染地下水的迁移羽流的效果。有待开发和协同结合的工程技术包括：(1)局部氧化还原环境的电化学改变和(2)强化生物降解。设想的实施需要建造一个羽流截止区，当地下水穿过该区时，氯化污染物(如全氯乙烯)在该区域发生加速降解。污染物的扩大销毁是预期的结果，原因有两个。首先，在插入截止区上游侧的阴极表面产生的还原条件将刺激细菌种群的发展，从而能够脱氯污染物。其次，该带下游段产生的氧化条件与污染物的脱氯状态将导致加速成矿。这笔赠款是根据征集NSF 00-49《环境新技术》而提供的。***

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. ***