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  • Title: [Characteristic analysis of heavy metals' evaporation of MSWI fly ash].
    Author: Yan JH, Li JX, Chi Y, Ni MJ, Cen KF.
    Journal: Huan Jing Ke Xue; 2004 Mar; 25(2):170-3. PubMed ID: 15202258.
    Abstract:
    In order to reduce the secondary pollution caused by municipal solid waste incineration (MSWI) fly ash, it must be treated soundly before final disposal, because the content of heavy metals in MSWI fly is high. In this paper, the evaporation of heavy metals (Pb, Cd, Cu, Zn) were studied between 600 degrees C-1100 degrees C, meanwhile the influence of CaCl2 on heavy metals' evaporation was studied. The result shown that without chlorination agent, the evaporation for Pb and Cd were as high as above 90%, about 80% for Cu, less than 40% for Zn. It was also found the evaporation of the heavy metals was enhanced when chlorination agent was added, and for Zn the evaporation increase was the most.
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