干旱区生态环境知识资源中心(Arid): Environmental Aspects of Cu Recovery from Evaporative Solids on the Surface of Old Weathered Tailings: Sarcheshmeh Mine, SE Iran

Arid

DOI	10.1007/s10230-020-00700-y
	Environmental Aspects of Cu Recovery from Evaporative Solids on the Surface of Old Weathered Tailings: Sarcheshmeh Mine, SE Iran
	Khorasanipour, Mehdi; Esmaeilzadeh, Esmat
通讯作者	Khorasanipour, M
来源期刊	MINE WATER AND THE ENVIRONMENT
ISSN	1025-9112
EISSN	1616-1068
出版年	2020
卷号	39 期号:4 页码:684-698
英文摘要	The enormous amount of water-soluble evaporative solids (about 150 t/ha) that has formed on the old weathered tailings in the semi-arid climate of the Sarcheshmeh area, in SE Iran, stores acidity and potentially toxic elements, such as Cd (8.8 +/- 3.7 mg/kg), Co (242 +/- 43 mg/kg), Cu (11,220 +/- 3500 mg/kg), Mn (8400 +/- 3400 mg/kg), Ni (176 +/- 38 mg/kg), S (12.82 +/- 1.01%), and Zn (2670 +/- 880 mg/kg). We assessed the potential of recovering Cu from these evaporative solids and the likely environmental aspects of doing so. The total Cu concentrations ranged from 7380 to 17,850 mg/kg. The mean Cu concentration in the produced pregnant leach solution (PLS) was 13,210 mg/L, which after cementation reached 94.40 mg/L, corresponding to a Cu recovery efficiency of 99.2%. During the cementation process, the Fe concentration increased in the final barren solution (FBS). In addition to the positive environmental role of Fe in the co-precipitation of potentially hazardous trace elements, the pH range of FBSs was 4.02-4.17, which was higher than the pH range of the initial PLSs (pH 3.25-3.40). Thus, collecting evaporative solids from the surface of old-weathered tailings can provide valuable Cu and improve the quality of the tailings pond recycling water by reducing the risk of diminishing of water quality, especially during heavy rainfall events.
英文关键词	Secondary soluble minerals Semi-arid climate Water solubility potential Cementation method
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000545922100002
WOS关键词	PORPHYRY COPPER TAILINGS ; SEMIARID ENVIRONMENT ; MINING DISTRICT ; FLOTATION ; CLIMATE ; IMPACT ; WASTE ; GENERATION ; MINERALOGY ; OXIDATION
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324945
作者单位	[Khorasanipour, Mehdi] Shahid Bahonar Univ Kerman, Fac Sci, Dept Geol, Kerman, Iran; [Esmaeilzadeh, Esmat] Res & Dev Div, Sarcheshmeh Copper Complex, Kerman, Iran
推荐引用方式 GB/T 7714	Khorasanipour, Mehdi,Esmaeilzadeh, Esmat. Environmental Aspects of Cu Recovery from Evaporative Solids on the Surface of Old Weathered Tailings: Sarcheshmeh Mine, SE Iran[J],2020,39(4):684-698.
APA	Khorasanipour, Mehdi,&Esmaeilzadeh, Esmat.(2020).Environmental Aspects of Cu Recovery from Evaporative Solids on the Surface of Old Weathered Tailings: Sarcheshmeh Mine, SE Iran.MINE WATER AND THE ENVIRONMENT,39(4),684-698.
MLA	Khorasanipour, Mehdi,et al."Environmental Aspects of Cu Recovery from Evaporative Solids on the Surface of Old Weathered Tailings: Sarcheshmeh Mine, SE Iran".MINE WATER AND THE ENVIRONMENT 39.4(2020):684-698.