可渗透反应墙原位修复垃圾渗滤液污染地下水  

In situ remediation of leachate-polluted groundwater with permeable reactive barrier technique

作　　者：崔海炜[1] 孙继朝[1] 张英[1] 王金翠[1] 黄冠星[1] 刘景涛[1] 温吉利[1] 

机构地区：[1]中国地质科学院水文地质环境地质研究所,石家庄050061

出　　处：《环境工程学报》2012年第8期2698-2704,共7页Chinese Journal of Environmental Engineering

基　　金：中国地质科学院水文地质环境地质研究所基本科研业务费专项经费资助(SK200902)

摘　　要：实验模拟地下环境,以垃圾渗滤液污染地下水为研究对象,分别采用沸石、无烟煤、陶粒、活性炭、炉渣、粉煤灰和零价铁作为填充材料,设计了7种地下可渗透反应器(PRB)。分2个阶段对PRB技术治理污染地下水可行性和有效性进行实验模拟研究,还研究了填充材料配比对PRB修复效率影响,分阶段调整复合填充材料配比,观察反应器产生的不同处理效果。考察了7种反应器内pH、EC和DO的变化情况及对污染物去除效果影响,分析了污染物去除机理;找出了反应器存在的某些不足之处。实验结果显示,2个阶段反应器对COD去除率都较高,分别为82.36%～88.11%和89.45%～93.65%。Seven reaction media zero valent iron （ZVI） , activated carbon, zeolites, ceramsite, slag, an- thracite, flyash were used to design seven kinds of permeable reactive barrier （PRB） , to study the feasibility and the efficiency of the PRB technology in the remediation of leachate-polluted groundwater. And moreover, propor- tioning of filling materials that could influence rehabilitation efficiency were discussed and different treatment effects of reactors were observed by adjusting the proportion of filling materials in stages. The relationship of pH, EC and DO in 7 reactors and the influence to removal effects towords the pollutant were inspected. The mechanism of removal to pollutants were analyzed and certain deficiencies of reactors were also discovered. The results indica- ted that the COD removal rates in two stages were 82. 36% -88. 11%, and 89.45% -93.65%, respectively.

关 键 词：可渗透反应墙 垃圾渗滤液 地下水 填充材料 原位处理 

分 类 号：X523[环境科学与工程—环境工程]