干旱区生态环境知识资源中心(Arid): Multifunctional ion exchange pretreatment driven by carbon dioxide for enhancing reverse osmosis recovery during impaired water reuse

Arid

DOI	10.1016/j.desal.2020.114459
	Multifunctional ion exchange pretreatment driven by carbon dioxide for enhancing reverse osmosis recovery during impaired water reuse
	Dong, Hang; German, Michael; Tian, Lin; SenGupta, Arup K.
通讯作者	Dong, H
来源期刊	DESALINATION
ISSN	0011-9164
EISSN	1873-4464
出版年	2020
卷号	485
英文摘要	Reverse osmosis (RO) has been increasingly applied for impaired water reuse in arid areas. However, enhancing RO recovery from scarce water resources is limited by energy demand for overcoming elevated brine osmotic pressure, and membrane scaling caused by concentrated poorly soluble salts. In this study, we present a hybrid ion exchange desalination process (HIX-Desal) as multifunctional RO pretreatment to enhance RO recovery by simultaneously desalinating feed water and removing multiple scale-forming ions (calcium, sulfate, and phosphate). The novelty of HIX-Desal is that carbon dioxide was the sole regenerant for a two-column train containing a hybrid anion exchanger (HAIX, with doped ferric oxide nanoparticles) and a shallow shell weak acid cation exchanger (SSWAC). We probed the desalination abilities of HIX-Desal at both lab and pilot scales using impaired water sources with varying total dissolved solids (TDS), where consistent desalination was achieved at 50-60% TDS reduction. Field tests demonstrated > 80% removal of calcium, sulfate, and phosphate simultaneously. System configuration and SSWAC structure, i.e., intraparticle diffusion path length, were demonstrated to govern the HIX-Desal process during desalination and CO2 regeneration cycle. We envision this study to facilitate RO recovery enhancement and upcycling industrial carbon emission.
英文关键词	Desalination Hybrid ion exchange Impaired water reuse Reverse osmosis pretreatment Membrane scaling prevention
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000530092300012
WOS关键词	PHOSPHATE REMOVAL ; ANION-EXCHANGE ; DESALINATION ; CO2 ; PERFORMANCE ; ENERGY ; HIX
WOS类目	Engineering, Chemical ; Water Resources
WOS研究方向	Engineering ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324393
作者单位	[Dong, Hang; German, Michael; SenGupta, Arup K.] Lehigh Univ, 1 W Packer Ave, Bethlehem, PA 18015 USA; [Tian, Lin] Wuhu Watech Environm Technol LLC, Wuhu, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Dong, Hang,German, Michael,Tian, Lin,et al. Multifunctional ion exchange pretreatment driven by carbon dioxide for enhancing reverse osmosis recovery during impaired water reuse[J],2020,485.
APA	Dong, Hang,German, Michael,Tian, Lin,&SenGupta, Arup K..(2020).Multifunctional ion exchange pretreatment driven by carbon dioxide for enhancing reverse osmosis recovery during impaired water reuse.DESALINATION,485.
MLA	Dong, Hang,et al."Multifunctional ion exchange pretreatment driven by carbon dioxide for enhancing reverse osmosis recovery during impaired water reuse".DESALINATION 485(2020).