干旱区生态环境知识资源中心(Arid): Design and Testing of a Separation and Desalination Device for Farmland Saline-Alkaline Water in Arid Areas

Arid

DOI	10.3390/ijerph19106178
	Design and Testing of a Separation and Desalination Device for Farmland Saline-Alkaline Water in Arid Areas
	Yang, Qiaonan; Hu, Can; Li, Jie; Yi, Xiaokang; Zhang, Jie; Sun, Zhilin
通讯作者	Yi, XK
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
EISSN	1660-4601
出版年	2022
卷号	19 期号:10
英文摘要	To solve the problem of soil salination and to desalinate saline-alkaline water in arid areas, this study involved the design and testing of a separation and desalination device for farmland saline-alkaline water that is suitable for arid areas. The results of this study indicate that after the pretreatment of farmland saline-alkaline water, the water yielded by the pretreatment device had a mean turbidity of <1 and a mean silt density index (SDI) of <3, which met the working conditions of nanofiltration (NF) and reverse osmosis (RO) membranes. When used to filter saline-alkaline water, the composite NF-RO membrane system achieved a desalination rate of 97.06%, a total hardness removal rate of 97.83%, and a Cl- removal rate of 99.65%, which satisfied the standard for irrigation water quality. Some indicators of the yielded water reached the hygienic standard for drinking water, thus successfully reutilizing water resources. The circulating solar collector tube of the device was designed with a collection area of 6 m(2), which could basically satisfy the heat demand of the flash tank for distillation. The design of the flash tank and the shell-and-tube circulating condenser met the requirements for vapor condensation. The crystals in the solar salt box precipitated under solar action. X-ray diffraction was used to identify the primary compound of the crystals as NaCl, suggesting that the precipitates have potential value as industrial salts. This study offers new technical references and helpful engineering guidance for arid saline-alkaline enrichment areas facing the problem of saline farmland irrigation water.
英文关键词	solar-driven seawater desalination saline-alkaline water salt leaching through basin irrigation circulating solar collector tube
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000802535500001
WOS关键词	SOLAR DESALINATION ; HUMIDIFICATION
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393149
推荐引用方式 GB/T 7714	Yang, Qiaonan,Hu, Can,Li, Jie,et al. Design and Testing of a Separation and Desalination Device for Farmland Saline-Alkaline Water in Arid Areas[J],2022,19(10).
APA	Yang, Qiaonan,Hu, Can,Li, Jie,Yi, Xiaokang,Zhang, Jie,&Sun, Zhilin.(2022).Design and Testing of a Separation and Desalination Device for Farmland Saline-Alkaline Water in Arid Areas.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,19(10).
MLA	Yang, Qiaonan,et al."Design and Testing of a Separation and Desalination Device for Farmland Saline-Alkaline Water in Arid Areas".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 19.10(2022).