台州市某沿江地块土壤污染修复效果评估

Evaluation of Remediation Effect of Soil Pollution in a Land Along the Yangtze River in Taizhou

台州市某沿江地块污染物种类涉及危险废物、一般固体废物和砷污染土壤,经修复后开展土壤污染修复效果评估。通过对地块土壤治理与修复工程的文件审核、现场勘察、现场采样和检测分析等,进行地块修复效果评估,主要判断是否达到评估标准。评估工作内容包括核查修复范围是否与修复技术方案中规定的修复范围一致,地块中清挖基坑、原位异地修复的重金属污染土壤(砷)是否达到修复技术方案中所规定的修复目标值。同时关注修复后污染土壤回填、回填区表层覆土和复绿是否符合要求,并考察完成修复后地块内的二次污染情况。

The types of pollutants in a land along the river in Taizhou are related to hazardous waste,general solid waste and arsenic contaminated soil.The purpose of this paper is to evaluate the effect of land restoration through document review,on-site investigation,on-site sampling and detection analysis of soil treatment and restoration project,and mainly judge whether it meets the evaluation standard or not.The assessment work includes checking whether the repair scope is consistent with the repair scope specified in the restoration technical plan and whether the heavy metal contaminated soil(arsenic)in the excavation of the foundation pit and in-situ remediation in the site has reached the repair target value specified in the remediation technical plan.At the same time,attention should be paid to whether the contaminated soil backfill,topsoil cover and greening in the backfill area meet the requirements,and the secondary pollution in the plot should be investigated after restoration.