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题名: Fast removal of cyanobacterial toxin microcystin-LR by a low-cytotoxic microgel-Fe(III) complex
作者: Dai, Guofei1, 2; Quan, Changyun3; Zhang, Xianzheng3; Liu, Jin1; Song, Lirong1; Gan, Nanqin1
通讯作者: Song, LR (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.
关键词: Microcystin-LR (MC-LR) ; Removal ; Microgel-Fe(III) ; Activated carbon
刊名: WATER RESEARCH
发表日期: 2012-04-01
DOI: 10.1016/j.watres.2011.11.010
卷: 46, 期:5, 页:1482-1489
收录类别: SCI
文章类型: Article
部门归属: [Dai, Guofei; Liu, Jin; Song, Lirong; Gan, Nanqin] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Dai, Guofei] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Quan, Changyun; Zhang, Xianzheng] Wuhan Univ, Key Lab Biomed Polymers, Minist Educ, Dept Chem, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences
资助者: 973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355]
类目[WOS]: Engineering, Environmental ; Environmental Sciences ; Water Resources
研究领域[WOS]: Engineering ; Environmental Sciences & Ecology ; Water Resources
摘要: Eutrophication has become a serious environmental threat throughout the world. In particular, the presence of cyanobacteria toxins, especially microcystins (MCs), has become a severe problem. Inhibition of Microcystis growth in water resources is the most effective way to reduce MCs, but it is a long-term investment. In the present study, a microgel-Fe(III) complex was developed for the fast removal of MC-LR. The microgel-Fe(III) characteristics and the MC-LR removal dynamics in Milli-Q water and natural water were evaluated. The removal efficiency negatively correlated to the initial MC-LR concentration and pH value (2.0-11.5), but the kinetics was not significantly influenced. The presence of natural organic matter (NOM) in water slightly reduced MC-LR removal using microgel-Fe(III). In addition, microgel-Fe(III) removed 98.99% of MC-LR in 12 min, while for activated carbon, it took 15-24 h to reach equilibrium. Furthermore, methanol was found to regenerate the microgel-Fe(III) after MC-LR removal for at least five regeneration cycles. Finally, the microgel-Fe(III) material was made into a membrane so that MCs could be removed by filtration. Therefore, microgel-Fe(III) is an effective technology and has a great potential in removing MC-LR from drinking water resources. (C) 2011 Elsevier Ltd. All rights reserved.
英文摘要: Eutrophication has become a serious environmental threat throughout the world. In particular, the presence of cyanobacteria toxins, especially microcystins (MCs), has become a severe problem. Inhibition of Microcystis growth in water resources is the most effective way to reduce MCs, but it is a long-term investment. In the present study, a microgel-Fe(III) complex was developed for the fast removal of MC-LR. The microgel-Fe(III) characteristics and the MC-LR removal dynamics in Milli-Q water and natural water were evaluated. The removal efficiency negatively correlated to the initial MC-LR concentration and pH value (2.0-11.5), but the kinetics was not significantly influenced. The presence of natural organic matter (NOM) in water slightly reduced MC-LR removal using microgel-Fe(III). In addition, microgel-Fe(III) removed 98.99% of MC-LR in 12 min, while for activated carbon, it took 15-24 h to reach equilibrium. Furthermore, methanol was found to regenerate the microgel-Fe(III) after MC-LR removal for at least five regeneration cycles. Finally, the microgel-Fe(III) material was made into a membrane so that MCs could be removed by filtration. Therefore, microgel-Fe(III) is an effective technology and has a great potential in removing MC-LR from drinking water resources. (C) 2011 Elsevier Ltd. All rights reserved.
关键词[WOS]: POTASSIUM-PERMANGANATE ; ENVIRONMENTAL FATE ; MASS-SPECTROMETRY ; ACTIVATED CARBON ; WATER ; DEGRADATION ; ADSORPTION ; PURIFICATION ; OXIDATION ; SEDIMENTS
语种: 英语
WOS记录号: WOS:000301018700013
ISSN号: 0043-1354
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/17059
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Wuhan Univ, Key Lab Biomed Polymers, Minist Educ, Dept Chem, Wuhan 430072, Peoples R China

Recommended Citation:
Dai, Guofei; Quan, Changyun; Zhang, Xianzheng; Liu, Jin; Song, Lirong; Gan, Nanqin.Fast removal of cyanobacterial toxin microcystin-LR by a low-cytotoxic microgel-Fe(III) complex,WATER RESEARCH,2012,46(5):1482-1489
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