填埋场腐殖土粒径分级特征及重金属污染程度评价  

Grading characteristics of humus soil particle size in landfill and its pollution status assessment of heavy metals

作　　者：龙於洋[1,2,3] 庞梦嫒 郭淑丽 李相杭 沈东升 朱敏[1,2,3] LONG Yuyang;PANG Meng’ai;GUO Shuli;LI Xianghang;SHEN Dongsheng;ZHU Min(College of Environmental Science and Engineering,Zhejiang Gongshang University,Hangzhou Zhejiang 310012;Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling,Zhejiang Engineering Research Center of Non-ferrous Metal Waste Recycling,Hangzhou Zhejiang 310012;Instrumental Analysis Center of Zhejiang Gongshang University,Hangzhou Zhejiang 310012)

机构地区：[1]浙江工商大学环境科学与工程学院,浙江杭州310012 [2]浙江省固体废物处理与资源化重点实验室,有色金属废弃物资源化浙江省工程研究中心,浙江杭州310012 [3]浙江工商大学分析测试中心,浙江杭州310012

出　　处：《环境污染与防治》2023年第12期1677-1683,共7页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.41977331、No.51778579)。

摘　　要：垃圾填埋场腐殖土的高效处理处置是实现现有填埋场可持续利用的关键。选取了填埋年限分别为6、10年的北京填埋场和温州填埋场的腐殖土(以下分别简称北京腐殖土和温州腐殖土)为研究对象,通过粒径分级分析其理化性质、营养元素和重金属。结果表明,填埋年限长的温州腐殖土粒径更均匀,较小的粒径占比更大,阳离子交换量、电导率、有机质质量分数更低,说明更加稳定。温州腐殖土粒径可划分为<0.600、0.600~13.200、>13.200 mm 3个部分。后续,腐殖土可根据粒径分级中的营养元素与重金属含量有针对性地进行资源化利用。The efficient treatment and disposal of humus soil in municipal solid waste landfills is the key to the sustainable utilization of the existing landfills.Humus soils of a Beijing landfill with 6 landfill years(named Beijing humus soil)and a Wenzhou landfill with 10 landfill years(named Wenzhou humus soil)were selected to analyze their physicochemical properties,nutrient elements and heavy metals after particle size grading.Results showed that Wenzhou humus soil with longer landfill years had more homogeneous particle size because small particles dominated,and its cation exchange capacity,electrical conductivity and mass percentage of organic matter were lower,indicating more stable.The particle sizes of Wenzhou humus soil could divided into<0.600,0.600-13.200 and>13.200 mm 3 parts.It provided theoretical basis for the subsequent targeted resource utilization of humus soils,according to nutrient elements and heavy metals in each particle size.

关 键 词：垃圾填埋场 粒径分级 腐殖土 营养元素 重金属 

分 类 号：X825[环境科学与工程—环境工程]