异位土壤气相抽提修复技术在北京某地铁修复工程中的应用实例  

AN APPLICATION CASE OF EX-SITU SOIL VAPOR EXTRACTION IN A SUBWAY REMEDIATION PROJECT IN BEIJING

作　　者：杨乐巍 张晓斌 郭丽莉 李书鹏 

机构地区：[1]北京建工环境修复股份有限公司,北京100015

出　　处：《环境工程》2016年第5期170-172,142,共4页Environmental Engineering

摘　　要：北京某地铁污染土壤修复工程采用异位土壤气相抽提修复施工方案。根据场地污染物的特性及修复场地实际情况,设计了异位土壤气相抽提修复系统,并通过中试研究获得了系统运行参数,验证了系统的修复效果,最终工程实施结果表明：所采用的异位SVE技术对主要污染物1,2-二氯乙烷、氯乙烯、氯仿和总石油烃（C6-C9）在土壤中的去除率达92.02%-99.07%。异位SVE在本修复工程中的成功应用,为今后类似污染场地土壤异位修复问题提供工程技术参考。A subway contaminated soil remediation project in Beijing used ex-situ soil vapor extraction to ensure its smooth implementation. We designed the composition of ex-situ soil vapor extraction system according to the field pollutants characters. And the operation parameters were obtained through the pilot test. The remediation effect had been verified. The results of this project showed that the removal rate of 1,2-dichloroethane,vinyl chloride,chloroform and total petroleum hydrocarbons（ C6- C9） from the soil was 92. 02% - 99. 07% after using the ex-situ soil vapor extraction. The successful application of ex-situ soil vapor extraction could provide technology references for the similar in situ remediation of contaminated sites in future.

关 键 词：异位修复 土壤气相抽提 土壤修复 挥发性有机污染物 

分 类 号：X53[环境科学与工程—环境工程]