某生活垃圾填埋场地下水污染调查及风险评价

Investigation and Risk Assessment of Groundwater Pollution in a Domestic Waste Landfill

以临沂市兰山区生活垃圾填埋场为研究对象,通过资料收集、现场踏勘、人员访谈,分析确认填埋场基础概况、水文地质条件、监测现状,确认建井采样分析方案;查明填埋场场内及下游均存在超标污染物;利用污染指数法、DRASTIC模型分别评价填埋场地下水污染及脆弱性;结合地下水污染情况、防渗层情况及敏感受体情况,评价垃圾填埋场地下水污染风险为中等。最终总结调查研究成果,为此类型垃圾填埋场提出管理建议。

Taking the domestic waste landfill site in Lanshan District,Linyi City as the research object,through data collection,on-site investigation and personnel interviews,the basic overview,hydrogeological conditions,monitoring status of the landfill site were analyzed and confirmed,the well construction sampling analysis plan was confirmed and identify the presence of excessive pollutants within and downstream of the landfill site,evaluate groundwater pollution and vulnerability in landfill sites using pollution index method and DRASTIC model respectively and assess the risk level based on the situation of groundwater pollution,anti-seepage layer,and sensitive receptors.Finally,the results of the study were summarized and management suggestions were proposed.