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题名: Annual dynamics and origins of the odorous compounds in the pilot experimental area of Lake Dianchi, China
作者: Li, L.; Wan, N.; Gan, N.; Xia, B. D.; Song, L. R.
关键词: cyanobacteria ; beta-cyclocitral ; geosmin ; beta-ionone ; 2-methylisoborneol ; off-flavour
刊名: WATER SCIENCE AND TECHNOLOGY
发表日期: 2007
DOI: 10.2166/wst.2007.160
卷: 55, 期:5, 页:43-50
收录类别: ISTP ; SCI
文章类型: Article
WOS标题词: Science & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]: Engineering, Environmental ; Environmental Sciences ; Water Resources
研究领域[WOS]: Engineering ; Environmental Sciences & Ecology ; Water Resources
英文摘要: Lake Dianchi is the sixth largest freshwater lake in China. The pilot experimental area (6 km(2)) in Lake Dianchi is one of the most severely polluted areas in the lake with heavy cyanobacteria blooms. During June 2002 to May 2003, the algal composition and number, and odorous compounds were identified monthly and monitored in the area. Meanwhile, physicochemical parameters such as total phosphorus (TP), total nitrogen (TN), 5-day biochemical oxygen demand (BOD5), chemical oxygen demand (CODMn), dissolved oxygen (DO), pH, transparency, temperature and chlorophyll a (chla) were determined. Four odorous compounds: 2-methylisoborneol (MIB), geosmin, beta-cyclocitral and beta-ionone were found in the lake water. Both the concentration of particulate beta-cyclocitral and that of beta-ionone correlated significantly with the annual variation of Chla, biomass of total phytoplankton, cyanobacteria and Microcystis. The concentration of particulate MIB correlated significantly with the biomass of Oscillatoria, while the concentration of particulate geosmin correlated significantly with the biomass of Anabaena. Off-flavour in the pilot area was found to be caused by a combination of beta-cyclocitral- and beta-ionone-producing Microcystis, MIB-producing Oscillatoria and geosmin-producing Anabaena. beta-ionone, MIB and geosmin contributed collectively to the odour intensity in the lake water.
关键词[WOS]: DRINKING-WATER ; 2-METHYLISOBORNEOL ; GEOSMIN ; BIODEGRADATION
语种: 英语
WOS记录号: WOS:000246543400007
ISSN号: 0273-1223
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/27237
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 4300072, Peoples R China
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