深圳市某生活垃圾填埋场地下水污染管控方法研究

针对深圳市某正规生活垃圾填埋场地下水污染特征调查结果,在场地地下水污染特征识别和成因分析的基础上,开展填埋场地下水污染管控方法研究。研究结果表明,受填埋区渗滤液下渗影响,场地地下水中挥发性酚类、氨氮、总大肠菌群、耗氧量指标超标严重,填埋区下游地下水水质受到明显污染。结合场地条件和地下水污染特征,提出了上游地下水截流和下游污染抽提处理的地下水污染管控方法。

Based on the investigation results of groundwater pollution characteristics of a regular domestic refuse landfill in Shenzhen, the groundwater pollution management and control methods were studied on the basis of groundwater pollution characteristics identification and cause analysis. The results show that the volatile phenols, ammonia nitrogen, total coliform bacteria and oxygen consumption index in groundwater of the site exceed the standard seriously under the influence of landfill leachate infiltration, and the groundwater quality in the downstream of the landfill area is obviously polluted. Combining site conditions and groundwater pollution characteristics, the groundwater pollution management and control methods for upstream groundwater closure and downstream pollution extraction treatment are proposed.