IHB OpenIR  > 藻类生物学及应用研究中心  > 期刊论文
Fast removal of cyanobacterial toxin microcystin-LR by a low-cytotoxic microgel-Fe(III) complex
Dai, Guofei1,2; Quan, Changyun3; Zhang, Xianzheng3; Liu, Jin1; Song, Lirong1; Gan, Nanqin1; Song, LR (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.
2012-04-01
Source PublicationWATER RESEARCH
ISSN0043-1354
Volume46Issue:5Pages:1482-1489
AbstractEutrophication 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.; 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.
SubtypeArticle
KeywordMicrocystin-lr (Mc-lr) Removal Microgel-fe(Iii) Activated Carbon
Department[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
DOI10.1016/j.watres.2011.11.010
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences
Funding Organization973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355] ; 973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355] ; 973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355] ; 973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355]
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology ; Water Resources
WOS SubjectEngineering, Environmental ; Environmental Sciences ; Water Resources
WOS IDWOS:000301018700013
WOS KeywordPOTASSIUM-PERMANGANATE ; ENVIRONMENTAL FATE ; MASS-SPECTROMETRY ; ACTIVATED CARBON ; WATER ; DEGRADATION ; ADSORPTION ; PURIFICATION ; OXIDATION ; SEDIMENTS
Funding Organization973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355] ; 973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355] ; 973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355] ; 973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355]
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/17059
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorSong, LR (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.
Affiliation1.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
GB/T 7714
Dai, Guofei,Quan, Changyun,Zhang, Xianzheng,et al. Fast removal of cyanobacterial toxin microcystin-LR by a low-cytotoxic microgel-Fe(III) complex[J]. WATER RESEARCH,2012,46(5):1482-1489.
APA Dai, Guofei.,Quan, Changyun.,Zhang, Xianzheng.,Liu, Jin.,Song, Lirong.,...&Song, LR .(2012).Fast removal of cyanobacterial toxin microcystin-LR by a low-cytotoxic microgel-Fe(III) complex.WATER RESEARCH,46(5),1482-1489.
MLA Dai, Guofei,et al."Fast removal of cyanobacterial toxin microcystin-LR by a low-cytotoxic microgel-Fe(III) complex".WATER RESEARCH 46.5(2012):1482-1489.
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