[Characteristic analysis of heavy metals' evaporation of MSWI fly ash].
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.
Yan
Jian-hua
JH
Clear Energy and Environment Engineering, Key Laboratory of Ministry Education, Zhejiang University, Hangzhou 310027, China.
Li
Jian-xin
JX
Chi
Yong
Y
Ni
Ming-jiang
MJ
Cen
Ke-fa
KF
D002122:Calcium Chloride / Q000494:pharmacology; D002244:Carbon; D060729:Coal Ash; D017745:Incineration; D019216:Metals, Heavy / Q000032:analysis / Q000737:chemistry*; D052638:Particulate Matter; D013696:Temperature; D014835:Volatilization
D060729:Coal Ash; D019216:Metals, Heavy; D052638:Particulate Matter; D002244:Carbon; D002122:Calcium Chloride