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 Publication | JOURNAL OF MEMBRANE SCIENCE
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ISSN | 0376-7388 |
Volume | 544Issue: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. |
Keyword | Electrospun Chitosan Nanofibers Spiral Wound Membrane Module Chromium (Vi) Adsorption Breakthrough Curves Affinity Membrane |
Subtype | Article |
WOS Headings | Science & Technology ; Technology ; Physical Sciences |
DOI | 10.1016/j.memsci.2017.09.045 |
Indexed By | SCI |
Language | 英语 |
WOS Keyword | HEAVY-METAL REMOVAL ; AFFINITY MEMBRANE ; AQUEOUS-SOLUTION ; NANOFILTRATION MEMBRANES ; CELLULOSE NANOFIBER ; BREAKTHROUGH CURVES ; KINETIC-PARAMETERS ; BED COLUMN ; PACKED-BED ; ADSORPTION |
WOS Research Area | Engineering ; Polymer Science |
WOS Subject | Engineering, Chemical ; Polymer Science |
Funding Organization | Key Laboratory of Green Process and Engineering Foundation of Chinese Academy of Sciences(LGPE2016YF03) ; National Natural Science Foundation of China(21506222) |
WOS ID | WOS:000412350900036 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://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 |
Affiliation | 1.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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Removal of Cr (VI) w(1150KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text |
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