| 해양퇴적물 인 용출에 미치는 pH, 온도, 용존 산소 농도의 영향 |
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천효창, 남세용, 김상현 |
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| Effects of pH, Temperature, and Dissolved Oxygen on Phosphorus Release from Marine Sediment to Seawater |
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Hyo-Chang Cheon, Se-Yong Nam, Sang-Hyoun Kim |
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| Abstract |
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Understanding the behavior of pollutants in the marine environment is essential for coping with the marine pollution problems such as eutrophication. In this study, the effects of environmental parameters on phosphorus release from marine sediment to sea water were investigated. The environmental parameters such as pH in the range of 7 to 9, temperature from 10 to 20C and dissolved oxygen levels (DO) renging 0.7 to 7.0mg/L were examined. Phosphorus release data were taken from batch tests excluding biotic effects, and analyzed using a first-order kinetic model. The effects of environmental parameters were quantified using a statistical methodology. High pH, high temperature, and low DO increased phosphorus release from the sediment to sea water. pH from 7 to 9, temperature from 10 to 20 ℃, or DO from 7.0 to 0.7 mg/L magnified the equilibrium phosphorus concentration up to 2 ～3 times. |
| Key Words:
Marine sediment;phosphorus release;eutrophication;pH;Temperature;dissolved oxygen (DO) |
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