干旱区生态环境知识资源中心(Arid): Distribution and origin of iron and manganese in groundwater: case study, Balat-Teneida area, El-Dakhla Basin, Egypt

Arid

DOI	10.1007/s12517-019-4689-1
	Distribution and origin of iron and manganese in groundwater: case study, Balat-Teneida area, El-Dakhla Basin, Egypt
	Khozyem, Hassan 1; Hamdan, Ali 1; Tantawy, Abdel Aziz 1,2; Emam, Ashraf 1; Elbadry, Eman 1
通讯作者	Khozyem, Hassan
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2019
卷号	12 期号:16
英文摘要	The groundwater contamination problem comes out from the ability of water to dissolve the aquifer materials, where any change in water acidity and alkalinity has an impact on this process. Iron and manganese are very sensitive to the water redox conditions. The present work attempts to characterize distribution and occurrence of Fe and Mn in the groundwater of Dakhla Basin, Western Desert of Egypt, their relationships with the acidity and alkalinity of groundwater, and the potential effect of oxidation-reduction conditions on their mode of occurrence. High concentrations of iron (Fe2+) and manganese (Mn2+) reductively dissolved from soil minerals have been detected in groundwater. Iron and manganese concentrations, as well as alkalinity and pH of groundwater were mapped in the study area. The concentrations of both elements are extremely high in the southern part of the study area (256 and 36 ppm, respectively) due to the high acidic character of groundwater. Two forms of Fe2+ are present (carbonate and sulfides), linked mainly to the level of the water-bearing layer depth. The iron carbonate is linked to the shallow water-bearing interval, whereas in the deep bearing water interval, Fe2+ tends to be in the sulfide form with the presence of sulfur-reducing bacteria (SRB). Mn behaves similarly as Fe but precipitated more rapidly, and the anaerobic bacteria play an effective role in concentration of both Fe and Mn in the studied samples. The long aeration time can help to drawdown the high Fe and Mn contents.
英文关键词	Dakhla Groundwater Iron Manganese Anaerobic bacteria
类型	Article
语种	英语
国家	Egypt
收录类别	SCI-E
WOS记录号	WOS:000480396000003
WOS关键词	PYRITE OXIDATION ; LANDFILL ; MANAGEMENT ; OXIDE ; MOBILIZATION ; RESOURCES ; MODEL ; FLOW
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214345
作者单位	1.Aswan Univ, Fac Sci, Geol Dept, Aswan 81528, Egypt; 2.New Valley Univ, New Valley, Egypt
推荐引用方式 GB/T 7714	Khozyem, Hassan,Hamdan, Ali,Tantawy, Abdel Aziz,et al. Distribution and origin of iron and manganese in groundwater: case study, Balat-Teneida area, El-Dakhla Basin, Egypt[J]. Arizona State University,2019,12(16).
APA	Khozyem, Hassan,Hamdan, Ali,Tantawy, Abdel Aziz,Emam, Ashraf,&Elbadry, Eman.(2019).Distribution and origin of iron and manganese in groundwater: case study, Balat-Teneida area, El-Dakhla Basin, Egypt.ARABIAN JOURNAL OF GEOSCIENCES,12(16).
MLA	Khozyem, Hassan,et al."Distribution and origin of iron and manganese in groundwater: case study, Balat-Teneida area, El-Dakhla Basin, Egypt".ARABIAN JOURNAL OF GEOSCIENCES 12.16(2019).