摘要
上海市虹口区某场地规划作为住宅用地,经前期场地调查发现,场地内部分调查点位的土壤中多环芳烃和重金属锑的含量超标。场地污染风险控制的总体思路是通过对多环芳烃污染土壤进行修复而削减污染源,对重金属污染土壤进行稳定化从而阻断其暴露途径。从原位修复和异位修复的角度考虑,由于污染物大部分集中于地表以下1. 3 m以内的浅层土壤中,因此更适合采用开挖后原地异位修复的模式,多环芳烃污染土壤经修复后并通过验收进行原位回填;重金属锑污染修复土壤用于市政道路两边绿化用土。
A site in Hongkou District,Shanghai was planned as a residential land. According to previous site investigations,it was found that the content of polycyclic aromatic hydrocarbons and heavy metal antimony in the soil at some survey sites within the site exceeded the standard. The general idea is to reduce the source of pollution by repairing PAH-contaminated soil,and stabilize the heavy metal-contaminated soil to block its exposure pathway. From the perspective of in situ restoration and ectopic restoration,since most of the pollutants are concentrated in shallow soil within 1. 3 m below the surface,it is more suitable to use the in situ restoration model after excavation,and the PAHs contaminate the soil. After the repair,it is backfilled in situ through acceptance;the heavy metal antimony-contaminated repaired soil is used for greening on both sides of municipal roads.
作者
杨飞
YANG Fei(Shanghai Environmental Energy Conservation Engineering Co.,Ltd.,Shanghai 200135,China)
出处
《黑龙江生态工程职业学院学报》
2020年第3期10-13,共4页
Journal of Heilongjiang Vocational Institute of Ecological Engineering
关键词
重金属锑污染土壤
多环芳烃污染土壤
异位稳定化
异位氧化
Heavy metal antimony contaminated soil
Polycyclic aromatic hydrocarbons contaminated soil
Ectopic stabilization
Ectopic oxidation
