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Desalination of effluents with highly concentrated salt by nanofiltration: From laboratory to pilot-plant
Luo, Jianquan; Wan, Yinhua
2013-04-15
Source PublicationDESALINATION
Volume315Issue:0Pages:91-99
AbstractNanofiltration (NF) has been widely used for treatment of industrial effluents, but very few work concerns NF process in concentrated saline solution, especially for NF-desalination aiming at permeation of monovalent salts and retention of organic solutes. In this study, NF270 membrane was chosen to treat model solutions and three industrial effluents with highly concentrated salt (crude iron dextran solution, iminodiacetic acid mother liquor, and raw soy sauce), showing that with increase of salt concentration, the retention of all the solutes decreased while concentration polarization was increased. In the presence of charged organic solutes, inorganic salt retention would decline, even negative retention of monovalent salt was found. Increasing pH would induce membrane swelling in saline solution, which might be caused by the higher local salt concentration around the membrane polymers at higher pH. As NF-desalination of industrial effluents with highly concentrated salt was scaled up from laboratory to pilot-plant, the dead-end stirred filtration at constant flux could provide some important information for pilot-plant tests, such as membrane selection, optimum operating parameters and mechanism analysis, but it was necessary to re-optimize operating mode and method for crossflow filtration at constant pressure, in order to control the concentration polarization at high salt concentration. (C) 2013 Elsevier B.V. All rights reserved.
KeywordIron Dextran Iminodiacetic Acid Soy Sauce Nf270 Diafiltration
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Indexed BySCI
Language英语
WOS KeywordSEPARATION ; MEMBRANES ; RETENTION ; GLUCOSE ; PERFORMANCE ; REMOVAL ; WATER ; SAUCE ; PH
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Chemical ; Water Resources
WOS IDWOS:000317709500012
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13574
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Luo, Jianquan,Wan, Yinhua. Desalination of effluents with highly concentrated salt by nanofiltration: From laboratory to pilot-plant[J]. DESALINATION,2013,315(0):91-99.
APA Luo, Jianquan,&Wan, Yinhua.(2013).Desalination of effluents with highly concentrated salt by nanofiltration: From laboratory to pilot-plant.DESALINATION,315(0),91-99.
MLA Luo, Jianquan,et al."Desalination of effluents with highly concentrated salt by nanofiltration: From laboratory to pilot-plant".DESALINATION 315.0(2013):91-99.
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