Fast removal of cyanobacterial toxin microcystin-LR by a low-cytotoxic microgel-Fe(III) complex
文献类型:期刊论文
作者 | 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. |
刊名 | WATER RESEARCH
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出版日期 | 2012-04-01 |
卷号 | 46期号:5页码:1482-1489 |
关键词 | Microcystin-lr (Mc-lr) Removal Microgel-fe(Iii) Activated Carbon |
ISSN号 | 0043-1354 |
DOI | 10.1016/j.watres.2011.11.010 |
文献子类 | Article |
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.; 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. |
WOS关键词 | POTASSIUM-PERMANGANATE ; ENVIRONMENTAL FATE ; MASS-SPECTROMETRY ; ACTIVATED CARBON ; WATER ; DEGRADATION ; ADSORPTION ; PURIFICATION ; OXIDATION ; SEDIMENTS |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
语种 | 英语 |
WOS记录号 | WOS:000301018700013 |
资助机构 | 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] ; 973 Program[2008CB418000]; Natural Science Foundation of China-Yunnan[U0833604]; National Natural Science Foundation of China[31070355] |
公开日期 | 2012-09-25 |
源URL | [http://ir.ihb.ac.cn/handle/342005/17059] ![]() |
专题 | 水生生物研究所_藻类生物学及应用研究中心_期刊论文 |
通讯作者 | Song, LR (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China. |
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 |
推荐引用方式 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. |
入库方式: OAI收割
来源:水生生物研究所
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