Selenium in Chinese coal gangue: Distribution, availability, and recommendations

doi:10.1016/j.resconrec.2019.05.039

	Selenium in Chinese coal gangue: Distribution, availability, and recommendations
	Long, Jie 1,2; Zhang, Shixi 2; Luo, Kunli 2
刊名	RESOURCES CONSERVATION AND RECYCLING
	2019-10-01
卷号	149 页码:140-150
关键词	Resource-exhausted cites Trace elements Se-enriched fertilizer Environmental sustainability
ISSN号	0921-3449
DOI	10.1016/j.resconrec.2019.05.039
通讯作者	Luo, Kunli(luokl@igsnrr.ac.cn)
英文摘要	Coal gangue accounts for a large proportion of the solid waste in China, and greater attention has been focused on the concentrations of potentially hazardous trace elements (PHEs) than on the potentially useful trace elements (PUEs), such as selenium (Se). Chinese coal gangue is enriched in Se, and the arithmetic mean value is 2.87 mg/kg (0.06-17 mg/kg), which is 97 times higher than the average Se concentration in the upper continental crust. For coal gangue deposited during different periods, the arithmetic mean Se values are 4.25 mg/kg (C-1) > 4.15 mg/kg (C-2-P-1) > 3.95 mg/kg (P-2) > 2.65 mg/kg (T-3) > 1.73 mg/kg (J(1)-J(2)) > 1.47 mg/kg (J(3)-K-1) > 0.66 mg/kg (E-N). The Se content in lignite coal gangue is 0.88 mg/kg (0.06-4.90 mg/kg), which is 0.26 and 0.21 times lower than that in bituminite and anthracite gangue. Pearson correlation results indicate that carbonates and aluminosilicates are the dominant carriers of selenium in J(3)-K-1 and J(1)-J(2) coal gangue, respectively. Selenium in late Carboniferous and early Permian coal gangue probably are likely primarily associated with sulfide minerals. In addition, crushed Se-enriched coal gangue powder is considered to be a potential resource for Se-enriched fertilizer, although As (avg = 90 mg/kg) and Cr (1.07 mg/kg) are enriched in early Carboniferous and late Triassic coal gangue. The findings suggest that a comprehensive system for managing resources (e.g., coal gangue) should be developed to improve the recovery and utilization of these resources and promote a more eco-friendly society and resource conservation in China.
资助项目	National Natural Science Foundation of China[41877299] ; National Natural Science Foundation of China[41172310] ; National Natural Science Foundation of China[41472322] ; Science and Technology major project of Guangxi[AA17202026-1] ; National Basic Research Program of China[2014CB238906]
WOS关键词	FLY-ASH PARTICLES ; HAZARDOUS ELEMENTS ; CLEANING REJECTS ; SPONTANEOUS COMBUSTION ; SELENOSIS AREA ; ULTRA-FINE ; NANOMINERALS ; PATTERNS ; PROVINCE ; GENOTOXICITY
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000483414300014
资助机构	National Natural Science Foundation of China ; Science and Technology major project of Guangxi ; National Basic Research Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/69607]
专题	中国科学院地理科学与资源研究所
通讯作者	Luo, Kunli
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Long, Jie,Zhang, Shixi,Luo, Kunli. Selenium in Chinese coal gangue: Distribution, availability, and recommendations[J]. RESOURCES CONSERVATION AND RECYCLING,2019,149:140-150.
APA	Long, Jie,Zhang, Shixi,&Luo, Kunli.(2019).Selenium in Chinese coal gangue: Distribution, availability, and recommendations.RESOURCES CONSERVATION AND RECYCLING,149,140-150.
MLA	Long, Jie,et al."Selenium in Chinese coal gangue: Distribution, availability, and recommendations".RESOURCES CONSERVATION AND RECYCLING 149(2019):140-150.