生活垃圾填埋场陈腐垃圾资源化利用研究进展

Research Progress on the Resource Utilization of Aged Waste in Domestic Waste Landfill

生活垃圾填埋场治理的关键在于陈腐垃圾的综合利用,腐殖土、筛上轻物质是其主要成分。结合陈腐垃圾的组成及理化特性,综述腐殖土、筛上轻物质的资源化利用研究现状。其中,腐殖土主要用作工程材料、生物填料及营养土,筛上轻物质主要以进入垃圾焚烧炉焚烧或水泥窑协同处置的方式回收能量。目前,腐殖土资源化利用技术处理量较小,存在重金属污染;筛上轻物质焚烧会排放废气,废气含有多种污染物。因此,在完善现有资源化利用途径的同时,应拓展新的资源化利用途径。

The key to the treatment of domestic waste landfill lies in the comprehensive utilization of aged waste,with humic soil and light sieve residue as its main components.The current research status of resource utilization of humic soil and light sieve residue is summarized based on the composition and physicochemical characteristics of aged waste.Among them,humic soil is mainly used as engineering materials,biological fillers,and nutrient soil,and the light sieve residue is mainly recycled for energy by entering the garbage incinerator for incineration or collaborating with the cement kiln for disposal.At present,the treatment capacity of humic soil resource utilization technology is relatively small,and there is heavy metal pollution;burning light sieve residue will emit exhaust gas,which contains various pollutants.Therefore,while improving existing ways of resource utilization,new ways of resource utilization should be expanded.