干旱区生态环境知识资源中心(Arid): Implications of Long Term Irrigation with Wastewater on The Contents and Retention Kinetics of Potentially Toxic Elements in Typic Torripsanunent Soils

Arid

DOI	10.21608/ejss.2018.4232.1183
	Implications of Long Term Irrigation with Wastewater on The Contents and Retention Kinetics of Potentially Toxic Elements in Typic Torripsanunent Soils
	Abbas, M. H. H.; Bassouny, M. A.
通讯作者	Abbas, MHH
来源期刊	EGYPTIAN JOURNAL OF SOIL SCIENCE
ISSN	0302-6701
EISSN	2357-0369
出版年	2018
卷号	58 期号:3 页码:337-357
英文摘要	THE consequences of irrigation with wastewater (rich in organic matter) on the distribution of potentially toxic elements (PTEs) between the soluble and total forms as well as their distribution among the different soil layers of El-Gabal El-Asfar soils was the main target of this work. Eight soil locations were sampled at three different depths to represent different periods of irrigation with wastewater extended beyond 80 years. These samples were analyzed for their contents of SOM, cation exchange capacity (CEC), total and soluble concentrations of PTEs i.e. Ni, Pb, Cd, Co, Zn and Cu. Results revealed that both SOM and CEC increased steadily and significantly in the uppermost 030- cm layer with ageing. The corresponding increases within the subsequent soil depths seemed to be slight. Soluble and total concentrations of PTEs also increased progressively within the different soil depths with ageing; however, the depthwise increases seemed less obvious. Based on the Dutch system formula, the soil irrigated for a period extended up to 80 years could be considered slightly polluted with Co, moderately polluted with Pb, severely polluted with Ni, Cu and Zn and very severely polluted with Cd. Soluble PTEs concentrations were correlated significantly with their total concentrations in soil and both were correlated significantly with SOM and CEC. The relationships between amounts of retained PTEs and their corresponding soluble concentrations were best fitted to Langmuir isotherm model. The outcome relations between the amounts of retained PTEs and aging were fitted to five kinetic models, the power function and the parabolic diffusion ones seemed to be the best fitting models. In conclusion, although soil organic matter plays important role in distribution of the PTEs between the soluble and retained forms in soil irrigated with wastewater, yet ageing affects this distribution obviously especially in the uppermost soil layer.
英文关键词	Retention kinetics El-Gabal El-Asfar Adsorption isotherms Soil organic matter Soil layers
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000454517100005
WOS关键词	DISSOLVED ORGANIC-MATTER ; ARID-ZONE SOILS ; HEAVY-METALS ; SEWAGE-SLUDGE ; AGRICULTURAL SOILS ; SORPTION ; COPPER ; CARBON ; REDISTRIBUTION ; SOLUBILITY
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333164
作者单位	[Abbas, M. H. H.; Bassouny, M. A.] Benha Univ, Fac Agr, Soils & Water Dept, Banha, Egypt
推荐引用方式 GB/T 7714	Abbas, M. H. H.,Bassouny, M. A.. Implications of Long Term Irrigation with Wastewater on The Contents and Retention Kinetics of Potentially Toxic Elements in Typic Torripsanunent Soils[J],2018,58(3):337-357.
APA	Abbas, M. H. H.,&Bassouny, M. A..(2018).Implications of Long Term Irrigation with Wastewater on The Contents and Retention Kinetics of Potentially Toxic Elements in Typic Torripsanunent Soils.EGYPTIAN JOURNAL OF SOIL SCIENCE,58(3),337-357.
MLA	Abbas, M. H. H.,et al."Implications of Long Term Irrigation with Wastewater on The Contents and Retention Kinetics of Potentially Toxic Elements in Typic Torripsanunent Soils".EGYPTIAN JOURNAL OF SOIL SCIENCE 58.3(2018):337-357.