平地堆山型简易垃圾填埋场封场边坡处理与渗沥液控制方案设计

Plan Design for Slope Treatment and Leachate Control in Closure of Dumping Waste Landfill Site of Flat Piled Mountain Type

针对简易堆山型填埋场在封场覆盖过程中面临的渗沥液外溢、边坡过陡等问题,结合大连市毛茔子垃圾填埋场二期填埋区的封场实践,提出通过修建混凝土挡墙增加填埋容积,控制封场坡度;设置渗沥液主动导排、被动拦截、原位回灌的整体解决方案,实现简易填埋场的规范封场覆盖。

Aiming to some existing problems in closure cover of dumping landfill site of piled mountain type, including leachate leakage, steep slope and so on, combining closure practice of second landfill area in Maoyingzi waste landfill site of Dalian, integral solution for realizing standard closure cover of dumping landfill site was put forward by constructing concrete walls to increase landfill capability and control closure slope, installing leachate recirculation, initiative drainage and passive intercept.