Volatilization and leaching behavior of heavy metals in MSW incineration fly ash in a DC arc plasma furnace

doi:10.1016/j.fuel.2017.07.091

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Volatilization and leaching behavior of heavy metals in MSW incineration fly ash in a DC arc plasma furnace
	Ma, Wenchao; Fang, Yunhao; Chen, Dongmei; Chen, Guanyi; Xu YX(徐永香); Sheng HZ(盛宏至); Zhou, Zhihua; Chen, GY (reprint author), Tianjin Univ, Sch Environm Sci & Engn, State Key Lab Engines, Tianjin 300072, Peoples R China.
刊名	FUEL
	2017-12-15
卷号	210 页码:145-153
关键词	Msw Incineration Fly Ash Heavy Metals Volatilization And Leaching Behavior Dc Arc Plasma Cao - Al2o3 - Sio2 (Cas)
ISSN号	0016-2361
DOI	10.1016/j.fuel.2017.07.091
文献子类	Article
英文摘要	Three fly ash samples collected from different waste incinerators were vitrified using a direct current arc plasma furnace at 1250-1400 degrees C. The influence of water-wash extraction and wrapping pretreatment on the volatilization and leaching behavior of heavy metals was investigated. Results showed: After thermal arc plasma treatment, the volume reduction and weight loss of fly ash were in the range of 68.7-82.2% and 23.8-56.7%, respectively. The residual fractions (wt.%) of heavy metals in slag are in the following sequence: Cr < Ni < Cd < Pb < Cu < Zn. Water-washing could reduce the volatilization rate of heavy metals due to some volatile salts removed by washing, while wrapping of fly ash could most effectively resist heavy metals against volatilizing, especially for Zn and Ni. The possible CaO - Al2O3 - SiO2 (CAS) ratio for successful melting of fly ash is suggested to be CaO in range of 20-48%, Al2O3 in range of 10-15%, and SiO2 in range of 40-65%. Moreover, toxicity characteristic leaching procedure results showed that the leaching of heavy metals in slags was much lower than the standard limit of toxicity characteristic leaching procedure (TCLP).
分类号	一类
WOS关键词	SOLID-WASTE INCINERATOR ; WATER-EXTRACTION ; SOLIDIFICATION/STABILIZATION ; VITRIFICATION ; AGENTS ; SIO2
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
WOS记录号	WOS:000413759500017
资助机构	National Science and Technology Support Program of China(2014BAC02B03) ; High Technology Support Project of Tianjin(16PTGCCX00170 ; Tianjin Research Program of Application and Advanced Technology(15JCQNJC06600) ; 16YFXTSF00540)
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/71935]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Chen, GY (reprint author), Tianjin Univ, Sch Environm Sci & Engn, State Key Lab Engines, Tianjin 300072, Peoples R China.
推荐引用方式 GB/T 7714	Ma, Wenchao,Fang, Yunhao,Chen, Dongmei,et al. Volatilization and leaching behavior of heavy metals in MSW incineration fly ash in a DC arc plasma furnace[J]. FUEL,2017,210:145-153.
APA	Ma, Wenchao.,Fang, Yunhao.,Chen, Dongmei.,Chen, Guanyi.,徐永香.,...&Chen, GY .(2017).Volatilization and leaching behavior of heavy metals in MSW incineration fly ash in a DC arc plasma furnace.FUEL,210,145-153.
MLA	Ma, Wenchao,et al."Volatilization and leaching behavior of heavy metals in MSW incineration fly ash in a DC arc plasma furnace".FUEL 210(2017):145-153.