文档介绍：Characteristic and Leaching Behavior of Heavy
Metals from Municipal Solid Wastes Incineration
(MSWI) Fly Ash in Chongqing, China
Qingju Hao1, 2 Changsheng Jiang1, 2 * Qiwen Tang1 Junke Zhang1
of Resources and Environment, Southwest University Chongqing 400716, China
2. Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing 400716, China
haoqingju@
Abstract—An investigation was conducted on the characteristics
and leaching behavior of heavy metals from municipal solid I. MATERIALS AND METHODS
wastes incineration (MSWI) fly ash in Chongqing, China. Results
indicated that the average particle size of the fly ash was µm, A. Experimental Materials
the large particles were formed mainly by small particles’ Fly ash samples were taken from the Tongxing Municipal
adsorption or aggregation. The total content of the main heavy Waste Incineration Plant, located in Beibei, Chongqing.
metals was about % of the fly ash, among which the contents Municipal solid waste was disposed by adopting the German
of Zn, Pb, Mn and Cr were relatively high. Leaching Martin SITY2000 back stepping tilt grate incinerator
concentrations of heavy metals in fly ash were influenced by the technology. Flue gas was purified by adopting bined
leaching procedure. The leaching concentrations of the heavy
metals in fly ash determine