城市生活垃圾填埋场矿化垃圾再利用方案设计

摘要

With an increasing amount of municipal solid waste(MSW), landfill sites have decreased rapidly, and the new landfill site selection in cities has become a difficult problem to solve.Municipal waste sanitary landfill, under the condition of relatively closed environment, after more than 6-8 year's stage after the physical, chemical and biological stabilization process, the properties and composition of formation has become relatively stable.TakingSouthern Lake landfill site in Changshu City as an example, the designoforigin landfill excavation was carried out,as well astesting toxicity after the garbage sorting and drying.Results showed that MSW was non-toxic and harmless.Excavation landfill after stabilization could recycle the existing landfills and save land source.%指出了生活垃圾量的日益增多导致填埋场用地越来越紧张,城市生活垃圾卫生填埋后,在相对封闭的环境条件下,经过多年物理、化学和生物稳定化显示出具有类似于土壤的物质.以常熟南湖生活垃圾填埋场为例,对原有垃圾填埋场垃圾进行了开采方案设计,并对开采垃圾经过分选、烘干后,检测了其毒性.结果表明,开挖长期填埋后稳定化的矿化垃圾可以资源化利用,可以使现有填埋场再生并重新利用,节约土地资源.