Behavior of heavy metals in the vitrification of MSWI fly ash with a pilot-scale diesel oil furnace
Characteristics of heavy metals during heat-treatment municipal solid waste incinerator (MSWI) fly ash were investigated in this paper.The experiment was performed using a pilot-scale oil furnace in the range 800-1350℃.In this work we investigated the effect of temperature on solidification efficiency,evaporation of heavy metals and on composition change,X-ray diffractometer (XRD),the leach toxicity of molten slag.The results showed that the main contents,solidification efficiency and evaporation of heavy metals had a tremendous change between 1150-1260℃.With temperature increasing,the percentage of CaO,SiO2 and Al2O3 increased,and SO3,K2O,Na2O and Cl deereased.Especially in 1260℃,the four compositions decreased sharply from 43.72% to 0.71%.Finally,the leaching concentrations of all heavy metals in molten slag were far lower than the standard values of TCLP.
heavy metals MSWI fly ash pilot-scale
Shulei Tian Jingmiao Li Feng Liu Jian Guan Lu Dong Qi Wang
Chinese Research Academy of Environmental Science, Beijing 100012,China Environmental Management College of China, Qinhuangdao, Hebei 066000,China School of Environmental Science and Engineering; Hebei University of Science and Technology, Shijiaz
国际会议
The Seventh International Conference on Waste Management and Technology(第七届固体废物管理与技术国际会议(ICWMT7))
北京
英文
214-221
2012-09-05（万方平台首次上网日期，不代表论文的发表时间）