干旱区生态环境知识资源中心(Arid): Radioactive Seepage through Groundwater Flow from the Uranium Mines, Namibia

Arid

DOI	10.3390/hydrology4010011
	Radioactive Seepage through Groundwater Flow from the Uranium Mines, Namibia
	Abiye, Tamiru; Shaduka, Ignatius
通讯作者	Abiye, T
来源期刊	HYDROLOGY
ISSN	2306-5338
出版年	2017
卷号	4 期号:1
英文摘要	The study focused on the seepage of uranium from unlined tailing dams into the alluvial aquifer in the Gawib River floodplain in Namibia where the region solely relies on groundwater for its economic activities as a result of arid climatic condition. The study reviewed previous works besides water sample collection and analyses for major ions, metals and environmental isotopes in addition to field tests on physico-chemical parameters (pH, Electrical Conductivity, Redox and T). Estimation of seepage velocity (true velocity of groundwater flow) has been conducted in order to understand the extent of radioactive plume transport. The hydrochemistry, stable isotopes and tritium results show that there is uranium contamination from the unlined uranium tailings in the Gawib shallow aquifer system which suggests high permeability of the alluvial aquifer facilitating groundwater flow in the arid region. The radioactive contaminants could spread into the deeper aquifer system through the major structures such as joints and faults. The contamination plume could also spread downstream into the Swakop River unless serious interventions are employed. There is also a very high risk of the plume to reach the Atlantic Ocean through seasonal flash floods that occurs in the area.
英文关键词	groundwater flow shallow aquifer uranium seepage Namibia
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000457923500010
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/2XILL650/332645
作者单位	[Abiye, Tamiru] Univ Witwatersrand, Sch Geosci, Private Bag X3, ZA-2050 Johannesburg, South Africa; [Shaduka, Ignatius] Minist Hlth & Social Serv, Directorate Atom Energy & Radiat Protect Author, Windhoek 9000, Namibia
推荐引用方式 GB/T 7714	Abiye, Tamiru,Shaduka, Ignatius. Radioactive Seepage through Groundwater Flow from the Uranium Mines, Namibia[J],2017,4(1).
APA	Abiye, Tamiru,&Shaduka, Ignatius.(2017).Radioactive Seepage through Groundwater Flow from the Uranium Mines, Namibia.HYDROLOGY,4(1).
MLA	Abiye, Tamiru,et al."Radioactive Seepage through Groundwater Flow from the Uranium Mines, Namibia".HYDROLOGY 4.1(2017).