重庆某六价铬污染场地土壤修复工程案例

Soil Remediation Engineering Instances of A Hexavalent Chromium Contaminated Site in Chongqing

选取重庆某六价铬污染场地治理修复工程作为研究对象,通过对修复方案设计、项目工程实施以及修复效果评估等方面进行分析研究,结论表明:本项目采用原位化学还原及稳定化作为治理修复技术,利用直接加压注入井工艺与高压旋喷工艺相结合进行药剂灌注,影响半径分别为2.5m和1m,累计布设注射井795口,灌注还原剂297.414吨、稳定剂297.302吨,成功修复污染土壤面积约12246.9m^2,修复方量约16150.5m^3。

A hexavalent chromium contaminated site treatment and restoration project in Chongqing was selected as the research object. Through the analysis and research on the remediation technology screening,remediation program design,project engineering implementation and remediation effect evaluation,the conclusion showed that the project used in situ chemical reduction and stabilization as a treatment and remediation technology,the direct pressure injection process combined with the high-pressure rotary spray process for chemical infusion,it successfully remediated the contaminated soil area of about 12246.9 m^2,the remediation volume was about 16150.5 m ^3.