某高龄期大型垃圾填埋场矿化垃圾理化特性与资源化利用研究  

Research on the Physicochemical Characteristics and Resource Utilization of Mineralized Waste in An Old Large Landfill

作　　者：张俊文 苏兴国 李湛江 黄亚玲 李瑾 ZHANG Junwen;SU Xingguo;LI Zhanjiang;HUANG Yaling;LI Jin(Guangzhou City Management Technology Research Center,Guangzhou Gangdong 510170)

机构地区：[1]广州市城市管理技术研究中心,广东广州510170

出　　处：《环境卫生工程》2023年第1期81-86,共6页Environmental Sanitation Engineering

基　　金：广州市科技计划项目(202206010054)。

摘　　要：为探索高龄期大型垃圾填埋场矿化垃圾资源化利用情况,以某80年代末垃圾填埋场矿化垃圾为例,多点勘探采集矿化垃圾和渗滤液样品进行理化特性分析,并对垃圾堆体开展沉降监测。结果表明:填埋场堆体沉降趋于稳定,渗滤液无法满足排放要求,须处理达标后排放;矿化垃圾中可燃组分含量约为23%~31%,腐殖土含量约为65%~75%,其湿基低位热值符合垃圾焚烧处理最低热值要求,但灰分含量较高(约为62%),不宜直接焚烧处理;建议矿化垃圾按可燃组分、腐殖土、金属类和砖瓦石块筛分分类进行资源化利用。In order to explore the resource utilization of mineralized waste from an old large landfill,the mineralized waste from a landfill in the late 1980s was taken as an example.The physicochemical properties of mineralized waste and leachate samples were analyzed by multi-point exploration,and settlement monitoring was carried out.The results showed that the landfill pile settlement tended to be stable,leachate could not meet the discharge requirements and must be discharged after treatment to meet the standards.The combustible ingredients of the mineralized waste was about 23%~31%,the humus was about 65%~75%,and its wet-based low calorific value met the minimum calorific value requirement of waste treatment by incineration.However,the ash content was high(about 62%),and was not suitable for direct incineration treatment.It was recommended that the mineralized waste should be screened and classified according to combustible,humus,metal and brick stones for resource utilization.

关 键 词：封场 填埋场 资源化利用 矿化垃圾 理化特性 

分 类 号：X705[环境科学与工程—环境工程] X703