工业项目地下水污染监测井布设方案的定量化研究

工业成品生产过程中各类装置所产生的污染源严重威胁着工业建设项目厂区及其周边地下水环境安全,对工业项目厂区及其周边地下水水质进行有效的监测则成为防控地下水污染风险的关键。以某石化项目为例,基于对研究区水文地质条件的剖析和概化,通过野外水文地质调查及现场试验获取水文地质参数,利用FEFLOW数值模拟软件建立研究区地下水三维非稳定渗流模型和溶质运移模型,分析预测设定工况下污染物随地下水的迁移规律,实现了地下水污染监测井布设方案在时间和空间尺度上的定量化分析,并提出了合理且有效的监控管理措施,可为工业项目地下水监测井的精细化布设提供参考。

Quantitative Research of the Layout Scheme of Groundwater Pollution Monitoring Wells in Industrial Proj ects

With the rapid development of the national economy,the demand for industrial products is further intensified,but the complexity of the pollution generated by the various types of device of production process is a serious threat to groundwater in the project area and the safety of surrounding environment. Therefore,how to monitor the surrounding groundwater quality of the industrial projects more effectively is the key issue to prevent and control the risk of groundwater contamination.Taking a petrochemical pro-ject as an example,based on the analysis and generalization of the hydrogeological conditions of the study area,through the hydrogeologic field survey and the field test to obtain hydrogeological parameters,this pa-per uses the FEFLOW software to establish a three-dimensional numerical simulation of unsteady ground-water seepage model of the study area and solute transport models,analyzes and forecasts the migration of contamination in the groundwater of the setting conditions.The paper conducts quantitative analysis of the layout scheme of groundwater pollution monitoring wells in time and space scales,and also puts forward reasonable and effective monitoring and management measures,and thus provides a useful reference for re-finement of the layout of groundwater monitoring wells in industrial projects.