中美垃圾场渗滤液中的金属成分变化的调研  

Investigation on Metals Change of Leachate in Landfills of China and USA

作　　者：刘芳[1] 徐期勇[2] TOWNSEND T G 

机构地区：[1]南京理工大学环境科学与工程系,江苏南京210094 [2]北京大学深圳研究生院环境与能源学院,广东深圳518055 [3]佛罗里达大学环境工程科学系,美国佛罗里达州326116450

出　　处：《环境科技》2010年第5期77-80,共4页Environmental Science and Technology

基　　金：美国佛罗里达州固体和危险废弃物管理中心资助

摘　　要：主要对2000～2004年美国佛罗里达州中部的5个垃圾场中垃圾渗滤液的金属离子成分进行统计分析,从中发现锑(Sb)、砷(As)、铬(Cr)、铁(Fe)、镍(Ni)、钠(Na)、钒(V)、硒(Se)等8种金属在渗滤液中的质量浓度超过EPA地表及饮用水标准,其中比较严重的是As,Fe和Na,每年都超EPA标准。推测该地区地表或地下水体被As,Fe,Na污染的可能性很大。对其他还未列入监控标准的金属也做了来源及危害分析。同时与国内某垃圾场渗滤液中的金属成份进行了比较,结果显示该垃圾场渗滤液只有汞(Hg)超国家Ⅴ类水体标准,但还在美国EPA容许范围内。The paper mainly focuses on the analysis of metal ions in leachate of five landfills, which are located in the mid-Florida in USA, from year 2000 to 2004. The results indicate the unattainment of eight metals, which are Antimony, Arsenic, Chromium, Iron, Nickel, Sodium, Vanadium and Selenium, respectively. The severe metal pollutants are Arsenic, Iron and Sodium, which exceed the ground and drinking water standard of EPA each year. It is supposed that the ground or underground water in the region is most likely polluted by the three metals. The source and damage of other metals that have not been listed in the EPA monitoring system are also analyzed. The mercury in domestic leachate exceed the limitation of China groundwater standard（level V）,but is still in the range of EPA standard.

关 键 词：垃圾场 渗滤液 重金属 污染 

分 类 号：X2[环境科学与工程—环境科学]