某非正规填埋场污染地下水监测技术及应用

以北方某非正规垃圾填埋场为例，提出了一种由垃圾分布特征指导地下水监测方案设计及应用的新方法，结合新型单井多层监测井建井技术，对不同深度地下水进行了高效样品采集和检测。通过结合航空遥感探测技术与场地土壤钻探勘察数据的数值模拟计算，对垃圾总体量及分布特征进行了有效分析，确定了主要地下水污染源（腐殖土型垃圾）的组成和分布特征，进一步结合场地水文地质条件对场地进行了地下水监测方案的设计，建设新型单井三层监测井，分别对地下水监测井不同深度（6，12，18 m）的地下水样品进行了高效采集和分析。填埋场地下水监测技术的设计和应用新方法为场地地下水监测技术的发展提供了有益参考。

APPLICATION OF MONITORING TECHNOLOGY FOR CONTAMINATED GROUNDWATER IN AN INFORMAL LANDFILL SITE

In this paper, a new method was proposed to guide the design and application of groundwater monitoring scheme based on the distribution characteristics of waste. Combined with the new technology of single well and multi-layer monitoring wells, the groundwater samples of different depths were collected and tested efficiently. Through the combination of aerial remote sensing detection technology and numerical simulation calculation of site geological prospecting data, the total amount and distribution characteristics of garbage were effectively analyzed, and the composition and distribution characteristics of main groundwater pollution source (humus garbage) were determined. Further, combined with the hydrogeological conditions of the site, the groundwater monitoring scheme was designed, and a new type of single well with three layers was constructed, the 18 groundwater samples of different depths (6 m, 12 m and 18 m) at each groundwater monitoring well were collected and analyzed efficiently. This paper provided design and application experience of groundwater monitoring technology in landfill site, and useful references for the development of groundwater monitoring technology.