The Role of Fe(0) and its Corrosion Products in the Degradation of Disinfection By-Products

0332085霍扎尔斯基拟议研究的主要目标是确定受管制(即THMS和HAAs)和未受管制或直接聚合的DBPs(例如卤代乙腈、卤代硝基甲烷和卤酮)在与金属铁、合成铁氧化物和从全规模配电系统获得的管道腐蚀产物反应时的非生物降解途径和动力学。其具体目标是：1)确定在存在Fe(0)和Fe(0)腐蚀产物的情况下DBPs的降解动力学和降解途径，2)评估在存在Fe(0)和Fe(0)腐蚀产物的情况下溶解氧和氯对DBP降解速率的影响，以及3)确定在存在管道固体和从全规模供水系统收集的管段中DBPs的降解动力学和途径。

0332085 Hozalski The main goal of the proposed research is to determine the abiotic degradation pathways and kinetics for regulated (i.e. THMs and HAAs) and unregulated or iremergingle DBPs (e.g., haloacetonitriles, halonitromethanes, and haloketones) upon their reaction with iron metal, synthetic iron oxides, and pipe corrosion products obtained from full-scale distribution systems. The specific objectives are to:1) determine the kinetics and pathways of the degradation of DBPs in the presence of Fe(0) and Fe(0) corrosion products,2) evaluate the effects of dissolved oxygen and chlorine on DBP degradationrates in the presence of Fe(0) and Fe(0) corrosion products, and 3) determine the kinetics and pathways of the degradation of DBPs in the presence of pipe solids and in pipe sections collected from full-scale water distribution systems.