REMOVAL OF ARSENIC AND HEAVY METALS FROM ARSENIC-CONTAINING ACID WASTEWATER WITH IRON SALT AND LIME

	REMOVAL OF ARSENIC AND HEAVY METALS FROM ARSENIC-CONTAINING ACID WASTEWATER WITH IRON SALT AND LIME
	Wang, Yongliang 1; Han, Peiwei 1; Lu, Yonggang 1; Xiao, Li 1,2; Du, Yingchao 1,2; Liu, Xiang 1,2; Ye, Shufeng 1
刊名	ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL
	2019-12-01
卷号	18 期号:12 页码:2655-2662
关键词	arsenic co-precipitation ferric arsenate leaching toxicity wastewater
ISSN号	1582-9596
英文摘要	Arsenic-containing acid wastewater produced in the mining and smelting process will bring great harm to the environment, while to treat arsenic-containing wastewater with iron salt and lime is an economical and effective method. In this paper, iron salt was added to co-precipitate the arsenic and heavy metals, the pH value of arsenic containing acid leaching solution was adjusted by adding of lime. The stability of co-precipitates was also investigated in this study. The results show that the iron, arsenic, copper and zinc in the leaching solution can be removed to less than 0.6 mg/L. In addition, arsenic removal is greatly affected by temperature and the molar ratio of Fe/As. The leaching toxicity test of the co-precipitates presents that the precipitates can be stably stored. SEM and XRD analyses of the co-precipitates indicate that the particles size of the co-precipitates is only several microns, and the ferric arsenate still appears in the amorphous state. Moreover, there are crystal calcium arsenate and calcium sulphate which can improve the stability of the co-precipitates.
WOS关键词	COPRECIPITATION ; SCORODITE ; PRECIPITATION ; STABILITIES ; SOLUBILITY ; IONS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	GH ASACHI TECHNICAL UNIV IASI
WOS记录号	WOS:000505674800011
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/38570]
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, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Inst Proc Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yongliang,Han, Peiwei,Lu, Yonggang,et al. REMOVAL OF ARSENIC AND HEAVY METALS FROM ARSENIC-CONTAINING ACID WASTEWATER WITH IRON SALT AND LIME[J]. ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL,2019,18(12):2655-2662.
APA	Wang, Yongliang.,Han, Peiwei.,Lu, Yonggang.,Xiao, Li.,Du, Yingchao.,...&Ye, Shufeng.(2019).REMOVAL OF ARSENIC AND HEAVY METALS FROM ARSENIC-CONTAINING ACID WASTEWATER WITH IRON SALT AND LIME.ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL,18(12),2655-2662.
MLA	Wang, Yongliang,et al."REMOVAL OF ARSENIC AND HEAVY METALS FROM ARSENIC-CONTAINING ACID WASTEWATER WITH IRON SALT AND LIME".ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL 18.12(2019):2655-2662.