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Fracsis: Ion fractionation and metathesis by a NF-ED integrated system to improve water recovery
Zhang, Yu-Fei1,4; Liu, Lei1; Du, Juan1; Fu, Rongqiang2; Van der Bruggen, Bart3; Zhang, Yang1,4
2017-02-01
Source PublicationJOURNAL OF MEMBRANE SCIENCE
Volume523Pages:385-393
AbstractDesalination of brackish and wastewater is a challenging task in case the water contains sparingly bivalent ions. To avoid membrane scaling and obtain a high water recovery, an integrated membrane process is proposed in this investigation: ion fractionation and metathesis by a nanofiltration (NF) - electrodialysis (ED) integrated system (namely "Fracsis"). In the first step, this system makes use of the advantage of NF which can fractionate the bivalent ions from the monovalent ions. Results show that the tested NF membrane has a satisfying selectivity for this application, with a retention of Na+ 38-49%, Cl- 20-38%, and Ca2+ > 98%, SO42- > 85%. Afterwards, both NF permeate (monovalent stream) and retentate (divalent stream) were sent to the ED for metathesis. By ED metathesis, salts with high solubility (CaCl2 and Na2SO4) were synthesized in two separate streams and hence a high water recovery was achieved. The water recovery rate may reach 98.5% in case a continuous mode is used. Finally, the operational cost was calculated on this bench scale Fracsis system. Results indicate that although the energy consumption is higher than that of a RO system, Fracsis has its advantages in a higher water recovery, lower cost on chemical consumption and sludge treatment expenditures. To a broader context, this technology may possibly be used for chemical purification and synthesis in various industries in case mixed inorganic/organic salt streams are concerned.
SubtypeArticle
KeywordNanofiltration Electrodialysis Metathesis Integrated Membrane Process Water Recovery
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.memsci.2016.09.052
WOS KeywordREVERSE-OSMOSIS DESALINATION ; NANOFILTRATION MEMBRANES ; SCALE FORMATION ; ULTRAFILTRATION MEMBRANE ; SALT PRODUCTION ; DIVALENT IONS ; ELECTRODIALYSIS ; SEAWATER ; CHARGE ; PH
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Polymer Science
Funding OrganizationChinese Academy of Sciences ; National Natural Science Foundation of China(51508548) ; Shandong Provincial Natural Science Foundation, China(BS2014NJ019)
WOS SubjectEngineering, Chemical ; Polymer Science
WOS IDWOS:000392772900039
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/9168
Collection环境资源化与水回用研究组
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Waste Valorizat & Water Reuse Grp WVWR, 189 Songling Rd, Qingdao 266101, Peoples R China
2.Shandong Tianwei Membrane Technol Co Ltd, 13173 Yuqing East St, Weifang 261061, Shandong, Peoples R China
3.Katholieke Univ Leuven, Dept Chem Engn, Celestijnenlaan 200F, B-3001 Leuven, Belgium
4.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yu-Fei,Liu, Lei,Du, Juan,et al. Fracsis: Ion fractionation and metathesis by a NF-ED integrated system to improve water recovery[J]. JOURNAL OF MEMBRANE SCIENCE,2017,523:385-393.
APA Zhang, Yu-Fei,Liu, Lei,Du, Juan,Fu, Rongqiang,Van der Bruggen, Bart,&Zhang, Yang.(2017).Fracsis: Ion fractionation and metathesis by a NF-ED integrated system to improve water recovery.JOURNAL OF MEMBRANE SCIENCE,523,385-393.
MLA Zhang, Yu-Fei,et al."Fracsis: Ion fractionation and metathesis by a NF-ED integrated system to improve water recovery".JOURNAL OF MEMBRANE SCIENCE 523(2017):385-393.
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