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学科主题: Ecology; Engineering ; Environmental; Environmental Sciences
题名: Estimation of the natural purification rate of a eutrophic lake after pollutant removal
作者: Jiang, Jian-Guo; Shen, Yun-Fen
通讯作者: Jiang, JG, S China Univ Technol, Coll Food & Bioengn, Guangzhou 510640, Peoples R China
关键词: lake ; eutrophication ; natural purification ; sediment ; phosphorus ; restoration
刊名: ECOLOGICAL ENGINEERING
发表日期: 2006-11-30
DOI: 10.1016/j.ecoleng.2006.06.002
卷: 28, 期:2, 页:166-173
收录类别: SCI
文章类型: Article
部门归属: S China Univ Technol, Coll Food & Bioengn, Guangzhou 510640, Peoples R China; Chinese Acad Sciendes, Inst Hydrobiol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]: Ecology ; Engineering, Environmental ; Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology ; Engineering
摘要: Pollution resulting from increased human activities is threatening Lake Donghu, its effects being characterized by serious eutrophication. A steady increase of phosphorus loading is the most important factor of the lake eutrophication. Pollution external control projects are being implemented and will be accomplished before the year 2010. In order to predict the restoration rate by the lake's self-purification after the projects of external control, a model of predicting the removal rate of total phosphorus (TP) from lake water is developed, and a brief method of estimating the release and export rate of sediment phosphorus is suggested. Results show that, on the premise of external loading fully controlled. The restoration needs about 55 years or more. Obviously, the great P pool in the sediment will be a limiting factor of preventing the improvement of water quality after the external loading is under control. Based on the estimation we conclude that after the external control projects before 2010, in order to restore the lake in a few years, although highly cost, the first step must be the sediment dredging to remove internal loading. The second step is diverting water of River Changjiang into the lake to accelerate the improvement of lake water. Otherwise, removal of pollutant sources will become meaningless. (c) 2006 Elsevier B.V. All rights reserved.
英文摘要: Pollution resulting from increased human activities is threatening Lake Donghu, its effects being characterized by serious eutrophication. A steady increase of phosphorus loading is the most important factor of the lake eutrophication. Pollution external control projects are being implemented and will be accomplished before the year 2010. In order to predict the restoration rate by the lake's self-purification after the projects of external control, a model of predicting the removal rate of total phosphorus (TP) from lake water is developed, and a brief method of estimating the release and export rate of sediment phosphorus is suggested. Results show that, on the premise of external loading fully controlled. The restoration needs about 55 years or more. Obviously, the great P pool in the sediment will be a limiting factor of preventing the improvement of water quality after the external loading is under control. Based on the estimation we conclude that after the external control projects before 2010, in order to restore the lake in a few years, although highly cost, the first step must be the sediment dredging to remove internal loading. The second step is diverting water of River Changjiang into the lake to accelerate the improvement of lake water. Otherwise, removal of pollutant sources will become meaningless. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: PHOSPHORUS RELEASE RATES ; SHALLOW LAKE ; WATER ; SEDIMENTS ; RESTORATION ; RIVER ; LIMITATION ; KINETICS ; GERMANY ; ORIGIN
语种: 英语
WOS记录号: WOS:000242698900009
ISSN号: 0925-8574
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8750
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.S China Univ Technol, Coll Food & Bioengn, Guangzhou 510640, Peoples R China
2.Chinese Acad Sciendes, Inst Hydrobiol, Wuhan 430072, Peoples R China

Recommended Citation:
Jiang, Jian-Guo; Shen, Yun-Fen.Estimation of the natural purification rate of a eutrophic lake after pollutant removal,ECOLOGICAL ENGINEERING,2006,28(2):166-173
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