摘要
为研究原位注射化学还原技术及零价铁微生物协同强化脱氯药剂的应用效果,以修复某三氯乙烯污染地下水地块工程为例,通过对药剂成分开发及配置、精细化注射操作和技术细节及修复效果监测进行分析。研究结果表明:零价铁微生物协同强化脱氯药剂协同原位注射化学还原技术应用于该地块取得了良好的修复效果;该药剂可使地下环境快速达到化学还原状态,并维持较长时间,可使三氯乙烯逐级反应生成低氯或无氯的中间产物,达到长期去除地下水中的目标氯代烃污染物的效果。
To study the effect and application of in-situ injection chemical reduction technology and zero valent iron dechlorination reagent with microbial synergistic enhancement,taking the remediation project of a trichloroethylene polluted groundwater site as an example,the reagent configuration,refined injection operation and technical details,and remediation result monitoring were analyzed.The results show that the zero valent iron dechlorination reagent with microbial synergistic enhancement and in-situ injection chemical reduction technology have been applied to the site and achieved good remediation effect.The reagent can quickly cause the groundwater a chemical reduction environment and maintain it for a relative long period.It can make trichloroethylene react step by step to produce low chlorine or chlorine free intermediate products,to achieve the long-term removal of target chlorohydrocarbon pollutants in groundwater.
作者
张峰
ZHANG Feng(Shanghai Greenment Environmental Technology Co.,Ltd.,Shanghai 200001,China)
出处
《环境科技》
2022年第2期32-37,共6页
Environmental Science and Technology
基金
典型有机-无机复合污染地块原位修复技术集成、监管模式研究与应用示范(cstc2018jszx-zdyfxmX0019-04).
关键词
场地修复
三氯乙烯污染
原位化学还原
Site remediation
Trichloroethylene contamination
In-Situ chemical reduction
