Strategies for arsenic pollution control from copper pyrometallurgy based on the study of arsenic sources, emission pathways and speciation characterization in copper flash smelting systems

doi:10.1016/j.envpol.2020.116203

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Strategies for arsenic pollution control from copper pyrometallurgy based on the study of arsenic sources, emission pathways and speciation characterization in copper flash smelting systems
	Zhou, Huihui 1,2; Liu, Guijian 1,2; Zhang, Liqun 3; Zhou, Chuncai 4; Mian, Md Manik 1,2; Cheema, Ayesha Imtiyaz 1,2
通讯作者	Liu, Guijian(lgj@ustc.edu.cn)
	2021-02-01
发表期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
卷号	270 页码:12
摘要	Arsenic in copper flash smelting (FS) systems not only affects the quality of products but also poses significant technological and environmental problems. Based on the assessment of arsenic mass partitioning in the FS system, arsenic elimination in off-gassing and tailings is 22%, and most of the arsenic output (69%) is recycled in the FS system. Circulating arsenic, especially arsenic in recycled dust and slag concentrate, is the key reason for high-arsenic-content feed. Dust-type recycled materials (RMs) contribute much more arsenic to the feed than slag-type RMs. Flash smelting furnace electrostatic precipitator (FSF ESP) dust contributes makese the largest contribution to arsenic among the dust-type RMs of mixed dust, especially trivalent arsenic, followed by FSF and flash converting furnace waste heat boiler (FCF WHB) dust, which contributes pentavalent arsenic. FCF WHB dust exhibits a relatively low arsenic content, consisting mainly of As(V)-O. Slag-type recycled materials contribute As(V)-O to the total feed, and As(III) originates from copper concentrates. Considering the arsenic contribution and environmental risk, reducing the recovery of FSF ESP dust can greatly decrease the arsenic grade of FSF feed and volatile As2O3. As one of the main arsenic sources in feed, FSF slag concentrate should be carefully disposed of if separated from feed materials because of its high arsenic-related environmental risk. In contrast, WHB dust and FCF slag are more suitable as RM due to their high copper content and low arsenic risk. (C) 2020 Elsevier Ltd. All rights reserved.
关键词	Arsenic Flash copper smelting Mass partitioning Occurrence mode Chemical speciation
DOI	10.1016/j.envpol.2020.116203
关键词[WOS]	REMOVAL ; FLOTATION ; ELEMENTS ; CU ; ADSORPTION ; SEPARATION ; OXIDATION ; MINERALS ; BEHAVIOR ; SOILS
收录类别	SCI ; SCI
语种	英语
资助项目	major science and technology projects in Anhui province[201903a07020011]
WOS研究方向	Environmental Sciences & Ecology
项目资助者	major science and technology projects in Anhui province
WOS类目	Environmental Sciences
WOS记录号	WOS:000608065400063
出版者	ELSEVIER SCI LTD
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15859
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Liu, Guijian
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shanxi, Peoples R China 3.Anhui Univ, Sch Resource & Environm Engn, Hefei 230601, Peoples R China 4.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Huihui,Liu, Guijian,Zhang, Liqun,et al. Strategies for arsenic pollution control from copper pyrometallurgy based on the study of arsenic sources, emission pathways and speciation characterization in copper flash smelting systems[J]. ENVIRONMENTAL POLLUTION,2021,270:12.
APA	Zhou, Huihui,Liu, Guijian,Zhang, Liqun,Zhou, Chuncai,Mian, Md Manik,&Cheema, Ayesha Imtiyaz.(2021).Strategies for arsenic pollution control from copper pyrometallurgy based on the study of arsenic sources, emission pathways and speciation characterization in copper flash smelting systems.ENVIRONMENTAL POLLUTION,270,12.
MLA	Zhou, Huihui,et al."Strategies for arsenic pollution control from copper pyrometallurgy based on the study of arsenic sources, emission pathways and speciation characterization in copper flash smelting systems".ENVIRONMENTAL POLLUTION 270(2021):12.