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题名: The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences
作者: Zhong, Fei ; Gao, Yunni ; Yu, Tao ; Zhang, Yongyuan ; Xu, Dong ; Xiao, Enrong ; He, Feng ; Zhou, Qiaohong ; Wu, Zhenbin
通讯作者: Wu, ZB (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; wuzb@ihb.ac.cn
关键词: Constructed wetland ; Aquaculture ; Cyanobacteria ; Off-flavor problems ; Canonical correspondence analysis
刊名: WATER RESEARCH
发表日期: 2011
卷: 45, 期:19, 页:6479-6488
收录类别: SCI
部门归属: [Zhong, Fei; Gao, Yunni; Yu, Tao; Zhang, Yongyuan; Xu, Dong; Xiao, Enrong; He, Feng; Zhou, Qiaohong; Wu, Zhenbin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Zhong, Fei] Marine Fisheries Res Inst Jiangsu Prov, Nantong 226007, Peoples R China
资助者: Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies[2008ZX07316-004, 2009ZX07106-002]; National Natural Science Foundation of China[50808172, 20877093, 51108335, 30870221]
摘要: An exploratory study on the management of undesirable cyanobacteria blooms with respect to off-flavor problems using an integrated vertical-flow constructed wetland (CW) was performed at a small commercial-scale channel catfish farm from 2004 to 2007. The results of the three-year experiment indicated that water treatment by the CW could reduce the possibility of dominance by undesirable cyanobacteria species that often cause off-flavor problems. A detailed investigation in 2007, showed that the concentrations of geosmin, MIB (2-methylisoborneol), and beta-cyclocitral in the water of the recirculating pond (4.3 ng L(-1), U.D. (undetected) and 0.2 ng L(-1), respectively) treated by the CW were significantly lower than those in the control pond (152.6 ng L(-1), 63.3 ng L(-1) and 254.8 ng L(-1), respectively). In addition, the relationships among the cyanobacteria species, the off-flavor compounds and ten environmental variables were explored by canonical correspondence analysis (CCA). The results showed that Oscillatoria sp., Oscillatoria kawamurae and Microcystis aeruginosa were the main sources of off-flavor compounds in the catfish ponds. The successful manipulation of undesirable cyanobacteria species potentially resulted in lower concentrations of odorous compounds in the water of the recirculating pond. An investigation of the concentrations of geosmin and MIB in catfish fillets showed that the levels of odorous compounds were below the OTC (odor threshold concentration) values in the recirculating pond but were above the OTC values from July to October in the control pond. Water recycling by the CW could potentially be one of the best management practices to control off-flavor occurrences in aquaculture. (C) 2011 Elsevier Ltd. All rights reserved.
语种: 英语
ISSN号: 0043-1354
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16759
Appears in Collections:水环境工程研究中心_期刊论文

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Zhong, Fei; Gao, Yunni; Yu, Tao; Zhang, Yongyuan; Xu, Dong; Xiao, Enrong; He, Feng; Zhou, Qiaohong; Wu, Zhenbin.The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences ,WATER RESEARCH,2011,45(19):6479-6488
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