干旱区生态环境知识资源中心(Arid): Sodic-saline soil remediation by electrochemical treatment under uncontrolled pH conditions

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DOI	10.1007/s12517-020-5210-6
	Sodic-saline soil remediation by electrochemical treatment under uncontrolled pH conditions
	Bessaim, Mohammed Mustapha 1,2; Missoum, Hanifi 1,2; Bendani, Karim 1,2; Laredj, Nadia 1,2; Bekkouche, Mohamed Said 1
通讯作者	Bessaim, Mohammed Mustapha
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2020
卷号	13 期号:5
英文摘要	Sodic and saline soils are found mainly in regions with weak precipitations such as areas where aridity predominates. The low rainfall rate causes salt accumulation at high level on the soil surfaces affecting hence both the environment and foundations of constructions and buildings. This study is aimed to investigate the performance and the potential of electrochemical treatment for decontamination of sodic-saline soil. For this purpose, soil specimens were collected from the region of Mostaganem located in the north-western of Algeria, which is classified as semi-arid zone. In this region, many large areas are greatly affected by salinity phenomenon during recent years. Seven indices including electric current, electro-osmotic flow, pH, electrical conductivity (EC), exchangeable sodium adsorption ratio (ESP), sodium adsorption ratio (SAR), and salt removal efficiency including sodium, potassium, and calcium were explored. Experimental tests were conducted in laboratory-designed cell using an electric potential difference of 15, 25, 35, and 45 V, respectively, for a total period of 7 days. Salts such as sodium (Na+), potassium (K+), and calcium (Ca2+) migrated and moved toward the catholyte chamber and accumulated there, by electro-migration and electro-osmotic mechanisms. Among these ionic compounds, the highest decontamination efficiency was achieved for Na+ and K+ ions estimated of 88% and 85%, respectively. However, for Ca2+ ions, the extraction rate was moderate than monovalent ions with a percentage of 59%. Our results demonstrated that the electrochemical treatment may be a simple, low-cost, and efficient alternative to decontaminate and remediate saline soils.
英文关键词	Electrochemical treatment Electrical potential Electro-osmosis flow Sodic-saline soil
类型	Article
语种	英语
国家	Algeria
收录类别	SCI-E
WOS记录号	WOS:000514534700001
WOS关键词	ELECTROKINETIC REMEDIATION ; HEAVY-METALS ; CONTAMINATED SOIL ; REMOVAL ; DECONTAMINATION ; ENHANCEMENT ; SALTS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314084
作者单位	1.Univ Abdelhamid Ibn Badis Mostaganem, Fac Sci & Technol, Civil Engn & Architecture Dept, Mostaganem 27000, Algeria; 2.LCTPE, Mostaganem, Algeria
推荐引用方式 GB/T 7714	Bessaim, Mohammed Mustapha,Missoum, Hanifi,Bendani, Karim,et al. Sodic-saline soil remediation by electrochemical treatment under uncontrolled pH conditions[J],2020,13(5).
APA	Bessaim, Mohammed Mustapha,Missoum, Hanifi,Bendani, Karim,Laredj, Nadia,&Bekkouche, Mohamed Said.(2020).Sodic-saline soil remediation by electrochemical treatment under uncontrolled pH conditions.ARABIAN JOURNAL OF GEOSCIENCES,13(5).
MLA	Bessaim, Mohammed Mustapha,et al."Sodic-saline soil remediation by electrochemical treatment under uncontrolled pH conditions".ARABIAN JOURNAL OF GEOSCIENCES 13.5(2020).