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Estimation of the natural purification rate of a eutrophic lake after pollutant removal
Jiang, Jian-Guo; Shen, Yun-Fen; Jiang, JG, S China Univ Technol, Coll Food & Bioengn, Guangzhou 510640, Peoples R China
2006-11-30
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume28Issue:2Pages:166-173
AbstractPollution 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.; 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.
SubtypeArticle
KeywordLake Eutrophication Natural Purification Sediment Phosphorus Restoration
DepartmentS China Univ Technol, Coll Food & Bioengn, Guangzhou 510640, Peoples R China; Chinese Acad Sciendes, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaEcology ; Environmental ; Engineering ; Environmental Sciences
DOI10.1016/j.ecoleng.2006.06.002
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000242698900009
WOS KeywordPHOSPHORUS RELEASE RATES ; SHALLOW LAKE ; WATER ; SEDIMENTS ; RESTORATION ; RIVER ; LIMITATION ; KINETICS ; GERMANY ; ORIGIN
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8750
Collection期刊论文
Corresponding AuthorJiang, JG, S China Univ Technol, Coll Food & Bioengn, Guangzhou 510640, Peoples R China
Affiliation1.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
GB/T 7714
Jiang, Jian-Guo,Shen, Yun-Fen,Jiang, JG, S China Univ Technol, Coll Food & Bioengn, Guangzhou 510640, Peoples R China. Estimation of the natural purification rate of a eutrophic lake after pollutant removal[J]. ECOLOGICAL ENGINEERING,2006,28(2):166-173.
APA Jiang, Jian-Guo,Shen, Yun-Fen,&Jiang, JG, S China Univ Technol, Coll Food & Bioengn, Guangzhou 510640, Peoples R China.(2006).Estimation of the natural purification rate of a eutrophic lake after pollutant removal.ECOLOGICAL ENGINEERING,28(2),166-173.
MLA Jiang, Jian-Guo,et al."Estimation of the natural purification rate of a eutrophic lake after pollutant removal".ECOLOGICAL ENGINEERING 28.2(2006):166-173.
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