老陈垃圾再利用的可行性探讨--以扬州市江都区生活垃圾填埋场为例  

Study on the Reuse of Aged Refuse from a Landfill

作　　者：闫啸[1,2] 孙秀玥 封克[1,3] 

机构地区：[1]扬州大学环境科学与工程学院,江苏扬州225127 [2]扬州市环保局,江苏扬州225007 [3]江苏省有机固体废弃物资源化协同创新中心,江苏南京210095

出　　处：《环境科技》2016年第2期16-20,共5页Environmental Science and Technology

基　　金：国家重点基础研究发展计划(973-2013CB127404);国家公益性行业(农业)科研专项(200903011);国家公益性行业(农业)科研专项(201103004)

摘　　要：以扬州市江都区生活垃圾填埋场为研究对象,对经填埋多年的老陈垃圾的基本性质进行测定,探讨其作为生产人工土壤原料的可行性。结果显示,该填埋场老陈垃圾的物理、化学和生物学性质均优于一般自然土壤。其中有机质和氮、磷、钾等养分含量也大大超过土壤肥力的一级标准。生物学试验表明,该老陈垃圾的生物毒性较小,不会对一般的植物生长造成伤害。因此推断,以该垃圾场作为主要原料来生产人工土壤可完全满足植物生长对环境可营养的需求。但对重金属含量超标的老陈垃圾,其产物的使用应严格控制在花木产业和城市绿化,避免用于食用植物的生产。将老陈垃圾用于生产人工土壤,一方面可使老陈垃圾被作为一种资源得以循环利用,同时消除了早期非卫生填埋垃圾场的环境隐患,另一方面也可通过垃圾填埋场的再次利用,节约了大量的土地资源。The study on the fundamental properties of the aged refuse from a landfill located in Jiangdu District, Yangzhou City, in order to explore the feasibility of which is used as raw materials for producing artificial soil. The results showed that the physical, chemical and biological properties of the aged refuse are superior to those of natural soil. The contents of organic matter and nitrogen, phosphorus, potassium are greatly exceeded the first class standard of soil fertility. The biological test showed that the toxicity of the aged refuse to plants was small and could be ignored. So we conclude that the artificial soils produced with aged refuse as main raw materials can completely meet the requirements of plants for growth condition. Taking into account the excessive content of some heavy metals, the products should be strictly controlled in the flower industry and avoid being used in cultivation of edible plants. Using aged refuse of landfill to produce artificial soils may achieve the recycling of wastes, eliminate the environmental hidden danger of the landfills which did not operate in accordance with the sanitary standards, and the reuse of landfill can save a lot of land resources as well.

关 键 词：老陈垃圾 人工土壤 固废资源化 

分 类 号：X7[环境科学与工程—环境工程]