MODEL FOR CATALYTIC REDUCTIVE DEHALOGENATION

本项目以工程为导向， 重卤化有机污染物的技术。 这些 污染物通常被证明是耐好氧生物化学的 治疗措施。 许多研究人员已经认识到 还原脱卤作为预处理机理的优点 这些化合物用于随后的需氧转化。 分期治疗 这种性质将消除潜在的危险， 还原过程的部分脱卤产物。 非生物性 和氯化溶剂的生化驱动的还原脱卤 在本项目中，建议进行研究和评估。 非生物和生物化学病灶将通过三个方面进行研究和开发 促进卤代有机化合物脱卤的模型系统， 将适用于在现场条件下使用。 拟议工作 包括：1）对使用 用于还原反应的多环-大环混合催化剂 水相卤代有机物的脱卤; 2）平行 开发基于使用的就地地下水处理系统 零价金属（Fe和Zn）用于还原脱卤， 还原性靶点; 3）分离和鉴定 负责还原脱卤的生理元素 200.第200章大开杀戒

This project is engineering oriented and investigates treatment technologies for heavily halogenated organic pollutants. These pollutants have generally proven to be resistant to aerobic biochemical treatment measures. Numerous investigators have recognized the potential advantages of reductive dehalogenation as a mechanism for pretreating such compounds for subsequent aerobic transformations. Staged treatments of this nature would eliminate potential hazards from the release of partially dehalogenated products of reductive processes. Both abiotic and biochemically driven reductive dehalogenation of chlorinated solvents are proposed for study and evaluation in this project. The abiotic and biochemical foci will be studied and developed via three model systems that promote dehalogenation of haloorganic compounds that would be applicable for use under field conditions. Proposed work includes: 1) fundamental and applied investigations into the use of semiconductor-macrocycle hybrid catalysts for the reductive dehalogenation of aqueous-phase halogenated organics; 2) parallel development of in situ groundwater treatment systems based on the use of zero-valence metals (Fe and zn) for the reductive dehalogenation of reductive targets; and 3) isolation and identification of the physiological elements responsible for the reductive dehalogenation of carbon tetrachloride by Shewanella putrefaciens 200.