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Chitosan membrane adsorber for low concentration copper ion removal
Wang, Xiaomin1,2,3; Li, Yanxiang1,2; Li, Haigang1; Yang, Chuanfang1,2
2016-08-01
Source PublicationCARBOHYDRATE POLYMERS
ISSN0144-8617
Volume146Issue:AUGPages:274-281
AbstractThin chitosan membranes with symmetric and interconnected pore structure were prepared using silica as porogen, and their physical properties including pore structure, pore size distribution, porosity and water affinity were analyzed. The membrane showed a maximum Cu(II) adsorption capacity of 87.5 mg/g in static adsorption, and the adsorption fitted pseudo-second order kinetics and Toth adsorption isotherm. The membranes were then stacked in layers as an adsorber to remove small concentration Cu(II) from water dynamically. At feed concentration of 5 mg/L, the adsorber could retain Cu(II) effectively when its thickness reached over 200 tim, and the performance was further improved by using more membranes layers. Within a certain limit, the adsorber showed a 'flow-independent' loading behavior, an indication of fast mass transfer inside the membrane. The adsorption process was correlated well with bed depth service time (BDST) model, Thomas model and Yoon and Nelson model, and the adsorber was also found to be regenerable and re-usable. (C) 2016 Elsevier Ltd. All rights reserved.
KeywordMembrane Adsorber Symmetric Structure Copper Ions Water Treatment Breakthrough Curves
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.carbpol.2016.03.055
Indexed BySCI
Language英语
WOS KeywordCROSS-LINKED CHITOSAN ; HEAVY-METAL IONS ; AQUEOUS-SOLUTIONS ; ACTIVATED-CARBON ; FLY-ASH ; ADSORPTION ; CU(II) ; PB(II) ; BEADS ; CHROMATOGRAPHY
WOS Research AreaChemistry ; Polymer Science
WOS SubjectChemistry, Applied ; Chemistry, Organic ; Polymer Science
Funding OrganizationChinese Academy of Sciences ; National Nature Science Foundation of China(21506222)
WOS IDWOS:000375110500032
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21048
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiaomin,Li, Yanxiang,Li, Haigang,et al. Chitosan membrane adsorber for low concentration copper ion removal[J]. CARBOHYDRATE POLYMERS,2016,146(AUG):274-281.
APA Wang, Xiaomin,Li, Yanxiang,Li, Haigang,&Yang, Chuanfang.(2016).Chitosan membrane adsorber for low concentration copper ion removal.CARBOHYDRATE POLYMERS,146(AUG),274-281.
MLA Wang, Xiaomin,et al."Chitosan membrane adsorber for low concentration copper ion removal".CARBOHYDRATE POLYMERS 146.AUG(2016):274-281.
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