| 垃圾焚烧飞灰烧结过程重金属迁移特性研究 |
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| 引用本文： | 李润东,王建平,王雷,李爱民,杨天华,魏砾宏,聂永丰.垃圾焚烧飞灰烧结过程重金属迁移特性研究[J].环境科学,2005,26(6):186-189. |
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| 作者姓名： | 李润东 王建平 王雷 李爱民 杨天华 魏砾宏 聂永丰 |
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| 作者单位： | 沈阳航空工业学院清洁能源与环境工程研究所,沈阳,110034;清华大学环境科学与工程系,北京,100084 |
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| 基金项目： | 国家高技术研究发展计划(863)项目(2002AA644010);中国博士后科学基金项目(2003034132);沈阳市科技计划项目(1033064-1-04) |
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| 摘 要： | 对垃圾焚烧飞灰烧结处理过程6种重金属(Cd、Pb、Cu、Ni、Cr和Zn)迁移特性开展系统实验研究,烧结实验在高温箱式电炉上进行,着重考察烧结温度、时间、制样压力等条件对重金属残留率的影响.结果表明:Cr残留率随温度升高而显著提高,Cu、Zn残留率随温度升高有所波动;烧结时间对Cu残留率影响显著,对其它5种金属影响不明显;在一定范围内,6种重金属残留率随制样压力增大而提高;Cd、Pb易于挥发,而Cu、Ni、Cr和Zn不易挥发;烧结温度、时间、制样压力对各种重金属残留率的影响程度各不相同;烧结处理可以固化大部分重金属,同时飞灰中重金属在烧结过程中的残留率因种类不同而呈现显著差异.
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| 关 键 词： | 垃圾 飞灰 烧结 重金属 迁移 |
| 文章编号： | 0250-3301（2005）06-0186-04 |
| 收稿时间： | 2004-10-14 |
| 修稿时间： | 2004-10-142004-12-03 |
Migration Characteristics of Heavy Metals During Sintering of Fly Ash from Municipal Solid Waste Incinerator |
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| LI Run-dong,WANG Jian-ping,WANG Lei,LI Ai-min,YANG Tian-hu,WEI Li-hong and NIE Yong-feng.Migration Characteristics of Heavy Metals During Sintering of Fly Ash from Municipal Solid Waste Incinerator[J].Chinese Journal of Environmental Science,2005,26(6):186-189. |
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| Authors: | LI Run-dong WANG Jian-ping WANG Lei LI Ai-min YANG Tian-hu WEI Li-hong and NIE Yong-feng |
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| Institution: | 1. Institute of Clean Energy and Environmental Engineering, Shenyang Institute of Aeronautical Engineering; Shenyang 110034, China; 2. Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | The sintering process is used to stabilize the heavy metal in fly ash from municipal solid waste incinerator(MSWI).Migration characteristics of 6 targeted heavy metals(Cd,Pb,Cu,Ni,Cr and Zn) in the sintering process of MSWI fly ash were investigated by experiments.Effect of several factors including sintering temperature,residence time,molding pressure and particle diameter on the migration of heavy metals were discussed in details.The results show that cadmium and lead are volatile metals,while nickel,copper,chromium and zinc belong to involatilizable metals.The effects of sintering temperature,residence time,molding pressure and particle diameter on the stabilizing efficiency differ from each other.The study shows that most of heavy metals are stabilized during the sintering process.The stabilizing efficiency of heavy metals was different for different elements. |
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| Keywords: | MSW fly ash sinter heavy metal migration |
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