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可渗透反应墙对地下水中多氯联苯的处理
引用本文:杜连柱,张兰英,刘娜,房芳.可渗透反应墙对地下水中多氯联苯的处理[J].环境化学,2007,26(4):499-503.
作者姓名:杜连柱  张兰英  刘娜  房芳
作者单位:1. 吉林大学环境与资源学院,长春,130026
2. 长春高科集团有限公司,长春,130031
基金项目:国家重点基础研究发展计划(973计划)
摘    要:以还原铁粉、铸铁粉、铸铁粉与活性炭的混合物为可渗透反应墙(PRB)的主要反应介质,设计了三种反应体系,处理多氯联苯PCBs(1242)污染的地下水.在有效孔隙率为60%-65%,水力停留时间为12-14.4h的条件下,考察其对污染物的去除效果.结果显示:三个反应体系中,pH值从6.83分别升高到10.66,9.40和8.50;氧化还原电位从81mV分别降到-30mV,-18mV和12mV;PCBs(1242)的去除率分别为91.0%,93.9%,94.5%.

关 键 词:可渗透反应墙  多氯联苯  铸铁粉  活性炭
修稿时间:2006-08-05

TREATING POLYCHLORINATE BIPHENYL IN GROUNDWATER WITH PERMEABLE REACTIVE BARRIER
DU Lian-zhu,ZHANG Lan-ying,LIU Na,FANG Fang.TREATING POLYCHLORINATE BIPHENYL IN GROUNDWATER WITH PERMEABLE REACTIVE BARRIER[J].Environmental Chemistry,2007,26(4):499-503.
Authors:DU Lian-zhu  ZHANG Lan-ying  LIU Na  FANG Fang
Institution:1 .College of Environment and Resources, Jilin University, Changchun, 130026, China; 2 .Gaoke Corporation, Changchun, 130031, China
Abstract:Is this paper,three kinds of reactors were designed to treat the groundwater polluted by polychlorinate biphenyl.The primary media filled in three reactors of permeable reactive ball were zero valent iron,cast iron powder and mixture of cast iron powder and active carbon.The effective porosity were from 60% to 65%,the hydraulic retention time were from 12h to 14.4h.The results indicated that pH in three reactors increase from 6.83 up to 10.66,9.40,8.50 respectively,redox potential decreased from 81mV down to-30mV,-18mV,12mV respectively,removal ratios of PCBs(1242)of three reactors were 91.0%,93.9%,94.5% respectively.The results proved that PRB was able to achieve good effect when treating groundwater contaminated with PCBs.
Keywords:permeable reactive ball  polychlorinate biphenyl  cast iron powder  active carbon  
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