化工园区周边土壤重金属污染风险评估及修复技术

Risk Assessment and Remediation Technology of Heavy Metal Pollution in Soil Around Chemical Parks

随着我国产业结构调整的深入推进,关、停、并、转的原工业企业遗留地的土壤和地下水受到污染,环境安全隐患突出。为保障工业企业场地再开发利用的环境安全,应进行环境评估和无害化治理。以西溪工业区某涂料制造地块土壤污染评估为研究背景,在主要污染物识别的基础上布设土壤监测、地下水监测和雨水监测点,对潜在污染因子进行试验分析与风险评估,确定土壤重金属污染水平,提出化学修复与生物修复相结合的土壤污染治理措施,可为园区土壤开发利用和环境保护提供技术参考。

With the in-depth advancement of China's industrial restructuring,the soil and groundwater left over from the former industrial enterprises that were closed,stopped,merged and transferred have been polluted,and the hidden dangers of environmental safety are prominent.In order to ensure the environmental safety of the redevelopment and utilization of industrial enterprise sites,environmental assessment and harmless treatment should be carried out.Based on the research background of soil pollution assessment of a paint manufacturing plot in Xixi Industrial Zone,this paper lays soil monitoring,groundwater monitoring and rainwater monitoring points on the basis of the identification of major pollutants,conducts experimental analysis and risk assessment of potential pollution factors,determines the level of soil heavy metal pollution,and proposes soil pollution control measures combining chemical remediation and biological remediation,which can provide technical reference for soil development and utilization and environmental protection in the park.