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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
发表期刊CARBOHYDRATE POLYMERS
ISSN0144-8617
卷号146期号:AUG页码:274-281
摘要Thin 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.
关键词Membrane Adsorber Symmetric Structure Copper Ions Water Treatment Breakthrough Curves
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.carbpol.2016.03.055
收录类别SCI
语种英语
关键词[WOS]CROSS-LINKED CHITOSAN ; HEAVY-METAL IONS ; AQUEOUS-SOLUTIONS ; ACTIVATED-CARBON ; FLY-ASH ; ADSORPTION ; CU(II) ; PB(II) ; BEADS ; CHROMATOGRAPHY
WOS研究方向Chemistry ; Polymer Science
WOS类目Chemistry, Applied ; Chemistry, Organic ; Polymer Science
项目资助者Chinese Academy of Sciences ; National Nature Science Foundation of China(21506222)
WOS记录号WOS:000375110500032
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21048
专题生化工程国家重点实验室
作者单位1.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
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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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