| 零价铁、镍-铁和铜-铁双金属对四氯乙烯的脱氯性能研究 |
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| 引用本文： | 何小娟,李旭东,汤明皋,刘菲,周琪. 零价铁、镍-铁和铜-铁双金属对四氯乙烯的脱氯性能研究[J]. 化工环保, 2006, 26(6): 451-454 |
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| 作者姓名： | 何小娟 李旭东 汤明皋 刘菲 周琪 |
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| 作者单位： | 同济大学,环境科学与工程学院,上海,200092;中国地质大学,水资源与环境学院,北京,100083;同济大学,环境科学与工程学院,上海,200092;中国地质大学,水资源与环境学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目（40072080;40142009）. |
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| 摘 要： | 研究了零价铁、镍-铁和铜-铁双金属对四氯乙烯（PCE）的还原性脱氯性能。实验结果表明，零价铁、镍-铁和铜-铁双金属对PCE的脱氯反应符合准一级反应动力学方程；双金属对P（=E的脱氯反应速率高于零价铁，镍-铁双金属对PCE的脱氯反应速率常数是零价铁的2．486倍；镍-铁和铜-铁双金属可使PCE完全脱氯，零价铁在对PCE脱氯的过程中产生一定量的三氯乙烯；增加金属质量，可提高PCE的脱氯反应速率；金属颗粒越小，越有利于PCE脱氯反应。
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| 关 键 词： | 四氯乙烯 零价铁 镍-铁双金属 铜-铁双金属 还原性脱氯 |
| 文章编号： | 1006-1878（2006）06-0451-04 |
| 收稿时间： | 2006-06-13 |
| 修稿时间： | 2006-06-25 |
Study on Dechlorination Capabilities of Zero-valent Iron,Nickel-Iron or Copper-Iron Bimetal on Tetrachloroethylene |
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| He Xiaojuan,Li Xudong,Tang Minggao,Liu Fei,Zhou Qi. Study on Dechlorination Capabilities of Zero-valent Iron,Nickel-Iron or Copper-Iron Bimetal on Tetrachloroethylene[J]. Environmental Protection of Chemical Industry, 2006, 26(6): 451-454 |
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| Authors: | He Xiaojuan Li Xudong Tang Minggao Liu Fei Zhou Qi |
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| Affiliation: | 1. School of Environmental Science and Engineering,Tongji University,Shanghai 200092 ,China; 2. School of Water Resources and Environment,China University of Geosciences,Beijing 100083 ,China |
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| Abstract: | The capabilities of Fe0,Ni-Fe bimetal and Cu-Fe bimetal for reductive dechlorination of tetrachloroethylene(PCE)were studied.The experimental results show that:The dechlorination reactions of Fe0,Ni-Fe bimetal and Cu-Fe bimetal on PCE accord with pseudo-first order kinetic equation;The dechlorination rate of PCE by bimetal is higher than that by Fe0;The dechlorination rate of PCE by Ni-Fe bimetal is 2.486 times that by Fe0;Complete dechlorination of PCE can be realized using Ni-Fe bimetal or Cu-Fe bimetal;Trichloroethylene will be produced during PCE dechlorination using Fe0;The increasing of bimetal mass can result in the increasing of dechlorination rate and smaller bimetal granule size is in favor of PCE dechlorination. |
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| Keywords: | tetrachloroethylene zero-valence iron nickel-iron bimetal copper-iron bimetal reductive dechlorination |
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