The cement solidification of municipal solid waste incineration fly ash

被引：0
|
作者：
Hou H. [1 ]
He X. [1 ]
Zhu S. [1 ]
Zhang D. [1 ]
机构：
[1] Institute of Resource and Environmental Science, Wuhan University
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2006年 / 21卷 / 4期
关键词：
Cement; Heavy metals; Leaching toxicity; MSWI fly ash; Solidification;
D O I：
10.1007/BF02841224
中图分类号：
学科分类号：
摘要：
The chemical composition, the content and the teachability of heavy metals in municipal solid waste incineration (MSWI) fly ash were tested and analyzed. It is shown that the teachability of Pb and Cr exceeds the leaching toxicity standard, and so the MSWI fly ash is considered as hazardous waste and must be solidified. The effect of solidifying the MSWI fly ash by cement was studied, and it is indicated that the heavy metals can be well immobilized if the mass fraction of the fly ash is appropriate. The heavy metals were immobilized within cement hydration products through either physical fixation, substitution, deposition or adsorption mechanisms.
引用
收藏
页码：137 / 140
页数：3
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