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垃圾焚烧飞灰中重金属的分布与性质
引用本文:万晓,王伟,叶暾旻,高兴保,杨金美,蓝煜昕.垃圾焚烧飞灰中重金属的分布与性质[J].环境科学,2005,26(3):172-175.
作者姓名:万晓  王伟  叶暾旻  高兴保  杨金美  蓝煜昕
作者单位:清华大学环境科学与工程系,北京,100084
基金项目:国家自然科学基金资助项目(20277024);国家高技术研究发展计划(863)项目(2002AA644010);清华大学基础研究基金资助项目(JC2002009);清华大学实验室开放基金资助.
摘    要:以华东某城市为案例,研究我国城市生活垃圾焚烧飞灰中重金属污染物的分布和性质.结果表明,重金属污染物主要集中于小粒径飞灰中.连续提取实验表明Cd、Pb、Mg、Cu等重金属在环境中具有较强的迁移性,Ag和Sn相对比较稳定.重金属元素的溶出与酸度密切相关,与环境关系较大的Cd、Co、Cu、Mn、Ni、Pb和Zn等元素在酸性条件下表现出最强的溶出能力,但Cr和As则倾向于在碱性条件下溶出.

关 键 词:重金属  飞灰  垃圾焚烧  形态分析  分布特征
文章编号:0250-3301(2005)03-0172-04
收稿时间:6/2/2004 12:00:00 AM
修稿时间:2004/10/4 0:00:00

Distribution and Characters of Heavy Metals from Municipal Solid Waste Incinerator Fly Ash
WAN Xiao,WANG Wei,Ye Tun-min,GAO Xing-bao,YANG Jin-mei and LAN Yu-xin.Distribution and Characters of Heavy Metals from Municipal Solid Waste Incinerator Fly Ash[J].Chinese Journal of Environmental Science,2005,26(3):172-175.
Authors:WAN Xiao  WANG Wei  Ye Tun-min  GAO Xing-bao  YANG Jin-mei and LAN Yu-xin
Institution:Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.
Abstract:The distribution and characters of heavy metals from municipal solid waste incinerator fly ash was studied in East China. The result indicate that heavy metals in fly ash were mainly distributed in fine particles. The heavy metals including Cd, Pb, Mg, and Cu could migrate easily from fly ash while Ag and Sn would be more stable. The metal mobility changed with the pH level. For environmentally important metals such as Cd, Co, Cu, Mn, Ni, Pb, and Zn, the increase in mobility due to the decrease in pH was more pronounced and significant than for other elements, while Cr and As with the opposite condition.
Keywords:heavy metal  fly ash  municipal solid waste incineration  speciation analyzed  distribution characters
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