用于陈腐垃圾处置的精细化筛分工艺——以某垃圾填埋场为例

A High-Precision Sorting Technique for the Disposal of Aged Refuse:A Case Study of A Landfill

随着我国城镇化进程的加快,存量非正规填埋场整治迫在眉睫,原位开挖筛分处置技术由于具有释放土地资源和永久清除潜在污染源的双重优势,在实际工程中得到广泛应用。常规筛分处置技术采用的筛分系统较为单一,筛分过程堵塞频率高、筛分质量差、效率低、产能低。以某垃圾填埋场为例,根据该填埋场陈腐垃圾特性,提出1种精细化筛分工艺,可有效降低筛分产物含杂率和筛分过程堵塞频率,提高筛分效率和产能。同时分析了目前筛分处置技术存在的问题并进行展望,以供同类型垃圾填埋场筛分处置模式参考。

With the accelerated urbanization process in China,the remediation of existing informal landfills has become an imminent task.In-situ excavation and sorting disposal technology offered a dual advantage of releasing land resources and permanently eliminating potential sources of pollution,making it widely applied in practical engineering projects.Conventional sorting disposal technologies often had limitations such as a single sorting system,frequent clogging during the process,poor sorting quality,and low efficiency and capacity.A landfill was taken as an example,and the characteristics of aged waste at the landfill was considered,a refined sorting process was proposed,which could effectively reduce the impurity content of the sorted product and the frequency of clogging during the sorting process,thereby improving the sorting efficiency and capacity.At the same time,the existing issues of current sorting disposal technologies were analyzed,and prospects were discussed,so as to provide reference for landfill site sorting and disposal models.