CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Removal of Cr (VI) with a spiral wound chitosan nanofiber membrane module via dead-end filtration
Li, Lei1,2; Zhang, Jinju1,2,3; Li, Yanxiang1,2; Yang, Chuanfang1,2
2017-12-15
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume544Issue:DECPages:333-341
Abstract

A re-generable spiral wound module of affinitive electrospun chitosan nanofiber membranes was fabricated, and the feasibility of the module for treating Cr (VI) contaminated water was studied. The effect of flow rate, initial Cr (VI) concentration, chitosan nanofiber deposition density, and other metal ions on Cr (VI) adsorption was investigated in detail. It was found that the loading capacity of the module was dependent on flow rate and nanofiber deposition density, but independent on initial Cr (VI) concentration. Lower flow rate led to higher adsorption capacity. The maximum adsorption capacity obtained with 2 g/m(2) nanofiber membranes in the module was 20.5 mg/g at 10% breakthrough. The module could also adsorb Cu (II), Cd (II) and Pb (II) ions separately but showed good selectivity to Cr (VI) when these metal ions were coexistent. The dynamic adsorption behavior of the module was better fitted by Dose-Response model. Furthermore, the separation of Cr (VI) by commercial nanofiltration (NF) membranes was examined and compared with the spiral wound nanofiber membranes constructed in this work. The result showed the latter had several advantages over the former in terms of rejection, flux and ease of operation.

KeywordElectrospun Chitosan Nanofibers Spiral Wound Membrane Module Chromium (Vi) Adsorption Breakthrough Curves Affinity Membrane
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.memsci.2017.09.045
Indexed BySCI
Language英语
WOS KeywordHEAVY-METAL REMOVAL ; AFFINITY MEMBRANE ; AQUEOUS-SOLUTION ; NANOFILTRATION MEMBRANES ; CELLULOSE NANOFIBER ; BREAKTHROUGH CURVES ; KINETIC-PARAMETERS ; BED COLUMN ; PACKED-BED ; ADSORPTION
WOS Research AreaEngineering ; Polymer Science
WOS SubjectEngineering, Chemical ; Polymer Science
Funding OrganizationKey Laboratory of Green Process and Engineering Foundation of Chinese Academy of Sciences(LGPE2016YF03) ; National Natural Science Foundation of China(21506222)
WOS IDWOS:000412350900036
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23251
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Lei,Zhang, Jinju,Li, Yanxiang,et al. Removal of Cr (VI) with a spiral wound chitosan nanofiber membrane module via dead-end filtration[J]. JOURNAL OF MEMBRANE SCIENCE,2017,544(DEC):333-341.
APA Li, Lei,Zhang, Jinju,Li, Yanxiang,&Yang, Chuanfang.(2017).Removal of Cr (VI) with a spiral wound chitosan nanofiber membrane module via dead-end filtration.JOURNAL OF MEMBRANE SCIENCE,544(DEC),333-341.
MLA Li, Lei,et al."Removal of Cr (VI) with a spiral wound chitosan nanofiber membrane module via dead-end filtration".JOURNAL OF MEMBRANE SCIENCE 544.DEC(2017):333-341.
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