高密度电法在原位修复土壤过程中的监控研究  

Monitoring of In-situ Soil Remediation by Electrical Resistivity Tomography

作　　者：姜勇 徐刚[1] 杨洁 郭琳 司马菁珂 何瑞 JIANG Yong;XU Gang;YANG Jie;GUO Lin;SIMA Jing-ke;HE Rui(School of Environmental and Chemical Engineering,Shanghai University,Shanghai 200444,China;Institute of Solid Waste and Soil Environment,Shanghai Academy of Environmental Sciences,Shanghai 200233,China)

机构地区：[1]上海大学环境与化学工程学院,上海200444 [2]上海市环境科学研究院固体废物与土壤环境研究所,上海200233

出　　处：《环境监测管理与技术》2020年第6期18-22,共5页The Administration and Technique of Environmental Monitoring

基　　金：上海市科委“科技创新行动计划”社会发展领域“典型有机污染场地原位修复过程监控评价技术及数字化解析系统研究与集成示范”基金资助项目(18DZ1204300)。

摘　　要：采用高密度电阻率成像法(ERT)对上海市某有机污染场地土壤污染原地修复进行研究,通过持续监测药剂注入前后电阻率的改变来推断药剂和污染物的扩散路径。结果表明,药剂扩散的影响半径介于2 m^4 m之间;其影响深度根据注药点和土壤渗透性差异而有所不同,在16 m处注药的影响深度大于监测深度20 m,ERT技术在监控原位注入修复过程中具有较好的可行性和适用性。Electrical resistivity tomography(ERT)was used in in-situ soil remediation at an organic contaminated site in Shanghai.The diffusion path of the agent and pollutants were inferred by continuous monitoring the changes of electrical resistivity before and after dosing.The results showed that the diffusion radius of the agent was between 2 m and 4 m.The influence of the agent varied with the difference of injection position and soil permeability.The influence of the agent injected in 16 m deep was greater than that in 20 m monitoring depth.ERT technology had good feasibility and applicability in monitoring in-situ soil remediation.

关 键 词：有机污染场地 土壤修复 原位化学氧化 高密度电阻率成像法 过程监控 

分 类 号：P631.322[天文地球—地质矿产勘探] X131.3[天文地球—地质学]