某合金厂铬污染场地修复实践研究  

Particle Study on the Remediation of an Abandoned Chromium-contaminated Site

作　　者：张晓明 ZHANG Xiao-ming(Saiensi Environmental Protection Co.,Ltd.,Changsha 410000,China)

机构地区：[1]赛恩斯环保股份有限公司,长沙410000

出　　处：《价值工程》2023年第16期24-26,共3页Value Engineering

摘　　要：本文介绍了某废弃合金厂污染土壤和地下水联合修复工程。根据土壤污染程度采用微生物淋洗技术、异位化学还原固定技术、阻隔填埋技术中的一或几种技术联合,成功实现了工程范围内污染土壤中总铬和六价铬的总量控制和浸出浓度的修复要求。采用原位注入化学还原技术将地下水中六价铬浓度降至低于0.05 mg/L,满足修复目标。This paper presented a joint remediation project of chromium(Cr)-contaminated soil and groundwater at an abandoned alloy factory site.The contents of total Cr and Cr(VI)in the contaminated soil were successfully reduced to the required targets by using solo or combination of these technologies,including microbial leaching,ex-situ chemical reduction and landfill,depending on the soil contamination level.Additionally,the in-situ injection reduction technology was applied to treat Cr(VI)polluted groundwater,and it successfully reduced the Cr(VI)concentration to below 0.05 mg/L,meeting Class III requirements of standard for groundwater quality.

关 键 词：铬污染场地 化学固定 微生物淋洗 原位注入 

分 类 号：X53[环境科学与工程—环境工程]