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DOI	10.2478/johh-2022-0006
	Experimental investigation of hydrophobic bentonite effects on reducing evaporation from water surfaces
	Jajin, Roza Ghahramani; Feizi, Atabak; Ghorbanpour, Mohammad
通讯作者	Feizi, A
来源期刊	JOURNAL OF HYDROLOGY AND HYDROMECHANICS
EISSN	1338-4333
出版年	2022
卷号	70 期号:2 页码:170-177
英文摘要	In recent years, due to the occurrence of water shortage and drought problems, particularly in arid and semi-arid regions of the world, new methods to reduce evaporation from the surface of dam reservoirs, lakes, and other water-free surfaces are investigated. This study aimed to use hydrophobic bentonite to reduce water evaporation from water surfaces, on a laboratory scale, and field conditions for the first time. Bentonite initially became hydrophobic by stearic acid (SA). Under such conditions, hydrophobic bentonite floats on the surface of water and forms a thin coating layer. The produced hydrophobic bentonite had a contact angle of 150 degrees, indicating its superhydrophobicity. Evaporation reduction was measured under laboratory and field conditions and it was compared to hexadecanol as the reference material. The results demonstrated that the hydrophobic bentonite efficiency under laboratory conditions was similar to that of hexadecanol and prevented water evaporation by 36%. However, under field conditions, hydrophobic bentonite and hexadecanol efficiencies were 40% and 23% to reduce evaporation for 30 days, respectively. In terms of stability, hexadecanol needed to be re-injected after three days, while hydrophobic bentonite was stable and remained on the surface for more than 100 days under laboratory conditions and for more than 15 days under field conditions without needing re-injection. This coverage with method can be used to reduce evaporation from lakes, tanks, and reservoirs of small dams.
英文关键词	Water evaporation Water surface Hydrophobic bentonite Hexadecanol monolayer
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000797305300003
WOS关键词	MONOLAYERS ; RESERVOIR
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/2XILL650/393515
推荐引用方式 GB/T 7714	Jajin, Roza Ghahramani,Feizi, Atabak,Ghorbanpour, Mohammad. Experimental investigation of hydrophobic bentonite effects on reducing evaporation from water surfaces[J],2022,70(2):170-177.
APA	Jajin, Roza Ghahramani,Feizi, Atabak,&Ghorbanpour, Mohammad.(2022).Experimental investigation of hydrophobic bentonite effects on reducing evaporation from water surfaces.JOURNAL OF HYDROLOGY AND HYDROMECHANICS,70(2),170-177.
MLA	Jajin, Roza Ghahramani,et al."Experimental investigation of hydrophobic bentonite effects on reducing evaporation from water surfaces".JOURNAL OF HYDROLOGY AND HYDROMECHANICS 70.2(2022):170-177.