| 引用本文: | H. Chua,P. H. F. Yu,M. W. L. Cheung.香港一富营养河港内的底泥耗氧和营养盐释放.湖泊科学,1998,10(s1):275-282. DOI:10.18307/1998.sup30 |
| H. Chua,P. H. F. Yu,M. W. L. Cheung.Sediment Oxygen Demand and Nutrient Release in An Eutrophic Estuarine Embayment in Hong Kong. J. Lake Sci.1998,10(s1):275-282. DOI:10.18307/1998.sup30 |
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| 香港一富营养河港内的底泥耗氧和营养盐释放 |
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H. Chua1, P. H. F. Yu2, M. W. L. Cheung3
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1.Department of Civil and Structural Engineering, Hong Kong, China;2.Department of Applied Biology and Chemical Technology Hong Kong Polytechnic Universityy Hung Horn, Hong Kong, China;3.Department of Contruction Support, Airport Authority, Wan Chai, Hong Kong, China
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| 摘要: |
| Tolo Harbour has received massive discharges of municipal sewage, agricultural wastes and cottage industrial effluents, via three river systems, in the past two decades before the mid Eighties. The Harbour is almost land locked and poorly flushed. The soft sediment acted as a sink for nutrients and organic pollutants. After a decade of efforts in establishing and enforcing water pollution control legislations and upgrading wastewater treatment facilities, the sediments have turned into sources of nutrients and exert a measurable oxygen demand upon the overlying waters. In vitro measurements showed that the sediments oxygen demand (SOD) was between 17.6 and 54.3 mgo2 · m-2 · h-1. The maximum rates of release of ortho-phosphate phosphorus and ammonia nitrogen were 15.0 and 206.0 mg · m-2 · h-1, respectively. |
| 关键词: eutrophication land-locked estuaring embayment Hong Kong sediment nutrient release sediment oxygen demand |
| DOI：10.18307/1998.sup30 |
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| Sediment Oxygen Demand and Nutrient Release in An Eutrophic Estuarine Embayment in Hong Kong |
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H. Chua1, P. H. F. Yu2, M. W. L. Cheung3
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1.Department of Civil and Structural Engineering, Hong Kong, China;2.Department of Applied Biology and Chemical Technology Hong Kong Polytechnic Universityy Hung Horn, Hong Kong, China;3.Department of Contruction Support, Airport Authority, Wan Chai, Hong Kong, China
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| Abstract: |
| Tolo Harbour has received massive discharges of municipal sewage, agricultural wastes and cottage industrial effluents, via three river systems, in the past two decades before the mid Eighties. The Harbour is almost land locked and poorly flushed. The soft sediment acted as a sink for nutrients and organic pollutants. After a decade of efforts in establishing and enforcing water pollution control legislations and upgrading wastewater treatment facilities, the sediments have turned into sources of nutrients and exert a measurable oxygen demand upon the overlying waters. In vitro measurements showed that the sediments oxygen demand (SOD) was between 17.6 and 54.3 mgo2 · m-2 · h-1. The maximum rates of release of ortho-phosphate phosphorus and ammonia nitrogen were 15.0 and 206.0 mg · m-2 · h-1, respectively. |
| Key words: eutrophication land-locked estuaring embayment Hong Kong sediment nutrient release sediment oxygen demand |
