Effect of Surface Deposition Coating with Aluminum Hydroxide on the Stabilization of Iron-Arsenic Precipitates

doi:10.1007/s42461-020-00366-8

	Effect of Surface Deposition Coating with Aluminum Hydroxide on the Stabilization of Iron-Arsenic Precipitates
	Wang, Yongliang 1; Liu, Xiang 1,2; Yan, Jingmin 1,2; Han, Peiwei 1; Du, Yingchao 1,2; Ye, Shufeng 1
刊名	MINING METALLURGY & EXPLORATION
	2021-01-07
页码	9
关键词	Iron-arsenic coprecipitates Arsenic release Deposit Aluminum hydroxide Coating structure
ISSN号	2524-3462
DOI	10.1007/s42461-020-00366-8
英文摘要	Iron-arsenic coprecipitate is a kind of solid waste produced in the treatment of arsenic-bearing wastewater from non-ferrous metallurgy. Stability of amorphous coprecipitates is usually poor if the Fe/As ratio is lower. In this study, the surface of coprecipitates was deposited with aluminum hydroxide with the aim to prevent the release of arsenic. The deposition experiments were carried out at normal temperature using Al-2(SO4)(3) solutions with pH between the range of 6.0-7.0. The characterization of the coated precipitates was investigated using SEM-EDS, TEM, XRD, FTIR, and BET. The stability experiment showed that the coated precipitates exhibit a higher release of arsenic than the coprecipitates without coating. The anion exchange might have taken place in the coated surface, and the release of arsenic may be a comprehensive result.
资助项目	Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A05] ; Key Programs of the Chinese Academy of Sciences[ZDRW-ZS-2018-1]
WOS关键词	FERRIC ARSENATE ; ADSORBED ARSENATE ; COPRECIPITATION ; IMMOBILIZATION ; SCORODITE ; BEHAVIOR ; PH ; SOLIDIFICATION/STABILISATION ; NEUTRALIZATION ; REDUCTION
WOS研究方向	Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000605934200003
资助机构	Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/43139]
专题	中国科学院过程工程研究所
通讯作者	Wang, Yongliang
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yongliang,Liu, Xiang,Yan, Jingmin,et al. Effect of Surface Deposition Coating with Aluminum Hydroxide on the Stabilization of Iron-Arsenic Precipitates[J]. MINING METALLURGY & EXPLORATION,2021:9.
APA	Wang, Yongliang,Liu, Xiang,Yan, Jingmin,Han, Peiwei,Du, Yingchao,&Ye, Shufeng.(2021).Effect of Surface Deposition Coating with Aluminum Hydroxide on the Stabilization of Iron-Arsenic Precipitates.MINING METALLURGY & EXPLORATION,9.
MLA	Wang, Yongliang,et al."Effect of Surface Deposition Coating with Aluminum Hydroxide on the Stabilization of Iron-Arsenic Precipitates".MINING METALLURGY & EXPLORATION (2021):9.