中文摘要：

要以四氯化碳（CT）和四氯乙烯（PCE）为目标污染物，以批试验方法研究Ni／Fe双金属对CT和PCE的还原性脱氯。结果表明：Ni／Fe双金属可有效去除水中的CT和PCE；Ni／Fe双金属对CT和PCE的降解反应均符合准一级反应动力学方程；在相似的反应条件下，Ni／Fe双盒属对CT和PCE脱氯的反应速率常数（kobs）之比为1．48和1．67，说明Ni／Fe双金属对CT的脱氯速率要快于对PCE的脱氯速率；Ni／Fe双金属可对PCE完全脱氯，但对CT脱氯过程中产生步量三氯甲烷（TCM）。

英文摘要：

Batch experiments were conducted to study the enhanced reductive degradation of Carbon tetrachloride. （CT） and tetrachloroethene （PCE） due to the presence of Ni/Fe bimetal （Ni： Fe--0.46 ： 1 000）. The results show： 1） that Ni/Fe bimetal scrapes significantly enhanced dechlorination of CT and PCE, 2） that dechlorination of CT and PCE by Ni/Fe bimetal were pseudo first order reactions, 3） the kobs of CT was 1.48～1. 67 times that of PCE, i. e. , dechlorination of CT was much faster than that of PCE at similar reaction condition, and 4） that no partially dechlorinated species were found in PCE degradation while chloroform was detected in CT dechlorination.