天津某石化仓储场地地下水环境影响评价

Groundwater Environmental Impact Assessment of a Petrochemical Storage Site in Tianjin

地下水环境影响评价是开展地下水保护的必要环节,同时也是各类建设项目环境评价工作的重要组成部分。为正确评价事故工况对地下水环境的影响,以本石化仓储场地为例,采用单因子评价法、地下水流模型和溶质运移模型对该场地地下水水质现状及地下水污染范围进行分析。分析得出,场地潜水含水层受到污染,为不适宜饮用地下水;事故工况下污染物的迁移范围十分有限,对周边地区影响较小。可为后期场地地下水修复提供有利条件。

The groundwater environmental impact assessment is an essential part of groundwater protection and an important part of the environmental assessment of various construction projects. In order to correctly evaluate the impact of accident conditions on the groundwater environment, the petrochemical storage site was taken as an example. The single-factor evaluation method, groundwater flow model and solute transport model were used to analyze the groundwater quality status and groundwater pollution range. The analysis shows that the site aquifer is polluted and is not suitable for drinking groundwater;the migration range of pollutants under accident conditions is very limited, and has little impact on the surrounding areas. It can provide favorable conditions for groundwater remediation in the later stage.