Application of Excavation and Screening in the Resource Utilization of Domestic Waste in Landfills
Effective management of saturated domestic waste landfills is an effective way to achieve pollution source removal,capacity evacuation and reuse,and resource utilization of domestic waste.Taking a domestic waste landfill as an example,the excavation screening technology scheme is adopted by comparing in-situ anaerobic sealing,in-situ aerobic remediation,overall relocation reduction,and excavation screening techniques.After the excavation of the landfill waste heap,multi-stage screening is carried out,during the excavation and screening period,measures are taken to collect,guide and treat leachate,control rainwater and sewage separation,and prevent secondary pollution,and separate materials such as construction waste,gravel,scrap iron,lightweight materials,and humus soil are obtained through screening.According to the physical and chemical properties of each separated substance,it can be utilized as a resource separately,ultimately achieving good economic,environmental,and social benefits.
excavation and screeninglandfilldomestic wasteresource utilization