TY - GEN
T1 - Effect of particle size on the speciation distribution of heavy metals in MSWI fly ash
AU - Li, Yanlong
AU - Li, Rundong
AU - Zhang, Zhihui
AU - Zhang, Haijun
AU - Wang, Lei
AU - Luan, Jingde
PY - 2011
Y1 - 2011
N2 - The municipal solid waste incinerator (MSWI) fly ash was classified by particle sizes: >0.27mm, 0.27-0.15mm, 0.15-0.11mm, <0.11mm; the speciation distribution of heavy metals in the size-classified fractions were analyzed by the sequential extraction experiment, then the effect of different particle size on the speciation distribution of heavy metals in fly ash was discussed. It was concluded that: Heavy metals associated with carbonate was the main speciation of Cu, Pb, Cd and Zn in all size-classified fly ash, especially, the Cadmium bonded to carbonates percentage was 94.4%. Nevertheless, the residual form was the main speciation of Ni and its percentage was about 50%. The high concentration of Cd and Pb ouccured in fly ash with particle size <0.11mm & >0.27mm. However, there was significant quantity of Ni in fly ash with particle size between 0.11mm and 0.15mm.
AB - The municipal solid waste incinerator (MSWI) fly ash was classified by particle sizes: >0.27mm, 0.27-0.15mm, 0.15-0.11mm, <0.11mm; the speciation distribution of heavy metals in the size-classified fractions were analyzed by the sequential extraction experiment, then the effect of different particle size on the speciation distribution of heavy metals in fly ash was discussed. It was concluded that: Heavy metals associated with carbonate was the main speciation of Cu, Pb, Cd and Zn in all size-classified fly ash, especially, the Cadmium bonded to carbonates percentage was 94.4%. Nevertheless, the residual form was the main speciation of Ni and its percentage was about 50%. The high concentration of Cd and Pb ouccured in fly ash with particle size <0.11mm & >0.27mm. However, there was significant quantity of Ni in fly ash with particle size between 0.11mm and 0.15mm.
KW - MSWI fly ash
KW - heavy metal
KW - particle size
KW - sequential extraction
KW - speciation distribution
UR - http://www.scopus.com/inward/record.url?scp=79956030143&partnerID=8YFLogxK
U2 - 10.1109/ICICTA.2011.493
DO - 10.1109/ICICTA.2011.493
M3 - 会议稿件
AN - SCOPUS:79956030143
SN - 9780769543536
T3 - Proceedings - 4th International Conference on Intelligent Computation Technology and Automation, ICICTA 2011
SP - 824
EP - 827
BT - Proceedings - 4th International Conference on Intelligent Computation Technology and Automation, ICICTA 2011
T2 - 2011 4th International Conference on Intelligent Computation Technology and Automation, ICICTA 2011
Y2 - 28 March 2011 through 29 March 2011
ER -
