干旱区生态环境知识资源中心(Arid): Resin-Loaded Heterogeneous Polyether Sulfone Ion Exchange Membranes for Saline Groundwater Treatment

Arid

DOI	10.3390/membranes12080736
	Resin-Loaded Heterogeneous Polyether Sulfone Ion Exchange Membranes for Saline Groundwater Treatment
	Mudau, Fulufhelo; Motsa, Machawe; Hassard, Francis; de Kock, Lueta-Ann
通讯作者	de Kock, LA
来源期刊	MEMBRANES
EISSN	2077-0375
出版年	2022
卷号	12 期号:8
英文摘要	Arid areas often contain brackish groundwater that has a salinity exceeding 500 mg/L. This poses several challenges to the users of the water such as a salty taste and damage to household appliances. Desalination can be one of the key solutions to significantly lower the salinity and solute content of the water. However, the technology requires high energy inputs as well as managing waste products. This paper presents the fabrication of ultrafiltration heterogeneous ion exchange membranes for brackish groundwater treatment. Scanning electron microscopy (SEM) images showed a relatively uniform resin particle distribution within the polymer matrix. The mean roughness of the cation exchange membrane (CEM) and anion exchange membrane (AEM) surfaces increased from 42.12 to 317.25 and 68.56 to 295.95 nm, respectively, when resin loading was increased from 1 to 3.5 wt %. Contact angle measures suggested a more hydrophilic surface (86.13 to 76.26 degrees and 88.10 to 74.47 degrees for CEM and AEM, respectively) was achieved with greater resin loading rates. The ion exchange capacity (IEC) of the prepared membranes was assessed using synthetic groundwater in a dead-end filtration system and removal efficiency of K+, Mg2+, and Ca2+ were 56.0, 93.5, and 85.4%, respectively, for CEM with the highest resin loading. Additionally, the anion, NO3- and SO42- removal efficiency was 84.2% and 52.4%, respectively, for the AEM with the highest resin loading. This work demonstrates that the prepared ultrafiltration heterogeneous ion exchange membranes have potential for selective removal for of ions by ion exchange, under filtration conditions at low pressure of 0.05 MPa.
英文关键词	heterogeneous ion exchange membranes ultrafiltration ion exchange resin loading ion exchange capacity groundwater treatment salt rejections
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000845493300001
WOS关键词	ELECTRODIALYTIC TRANSPORT-PROPERTIES ; DRINKING-WATER ; SURFACE MODIFICATION ; REMOVAL ; PERMSELECTIVITY ; SELECTIVITY ; MONO ; POLYMERIZATION ; IMPACT ; RATIO
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Physical ; Engineering, Chemical ; Materials Science, Multidisciplinary ; Polymer Science
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry ; Engineering ; Materials Science ; Polymer Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393776
推荐引用方式 GB/T 7714	Mudau, Fulufhelo,Motsa, Machawe,Hassard, Francis,et al. Resin-Loaded Heterogeneous Polyether Sulfone Ion Exchange Membranes for Saline Groundwater Treatment[J],2022,12(8).
APA	Mudau, Fulufhelo,Motsa, Machawe,Hassard, Francis,&de Kock, Lueta-Ann.(2022).Resin-Loaded Heterogeneous Polyether Sulfone Ion Exchange Membranes for Saline Groundwater Treatment.MEMBRANES,12(8).
MLA	Mudau, Fulufhelo,et al."Resin-Loaded Heterogeneous Polyether Sulfone Ion Exchange Membranes for Saline Groundwater Treatment".MEMBRANES 12.8(2022).