| STUDY ON SORPTION OF HEAVY METAL POLLUTANTS BY SEDIMENT PARTICLES |
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| 作者姓名： | Huang Sui-liangState Key Joint Laboratory of Environmental Simulation and Pollution Control |
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| 作者单位： | Huang Sui-liangState Key Joint Laboratory of Environmental Simulation and Pollution Control (Institute ofEnvironmental Sciences)，Beijing Normal University，Beijing 100875，P. R.ChinaWan Zhao-huiChinese Institute of Water Conservancy and Hydroelectric Power Research (IWHR)，P. O.Box 366，Beijing，100044 P.R.China |
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| 摘 要： | Sorption of heavy metal on sediment particles is studied theoretically am experimentally. Sorption processes of heavy metal pollutants on sediment particles can b well described by Langmuir model. Parameters in the model b,,k and k1 depend on proper ties of sediment and water, and have nothing to do with sediment concentration. By com bining the sorption dynamic equation and the mass conservation equation, the variation c N(sorption content of heavy metal pollutant by specific weight of sediment) and c (con centration of heavy metal pollutant in water phase) with time can be deduced. Further more, formulas for calculating the equilibrium sorption content N and the equilibriur concentration of heavy metal pollutant in water phase c are established too. Experimenta data well coincide with theoretical formulas. These can be treated as the basis for furthe quantitative study of sediment sorption-desorption characteristics.
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STUDY ON SORPTION OF HEAVY METAL POLLUTANTS BY SEDIMENT PARTICLES |
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| Huang Sui-liangState Key Joint Laboratory of Environmental Simulation and Pollution Control.STUDY ON SORPTION OF HEAVY METAL POLLUTANTS BY SEDIMENT PARTICLES[J].Journal of Hydrodynamics,1997(3). |
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| Authors: | Huang Sui-liangState Key Joint Laboratory of Environmental Simulation and Pollution Control |
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| Abstract: | Sorption of heavy metal on sediment particles is studied theoretically am experimentally. Sorption processes of heavy metal pollutants on sediment particles can b well described by Langmuir model. Parameters in the model b,,k and k1 depend on proper ties of sediment and water, and have nothing to do with sediment concentration. By com bining the sorption dynamic equation and the mass conservation equation, the variation c N(sorption content of heavy metal pollutant by specific weight of sediment) and c (con centration of heavy metal pollutant in water phase) with time can be deduced. Further more, formulas for calculating the equilibrium sorption content N and the equilibriur concentration of heavy metal pollutant in water phase c are established too. Experimenta data well coincide with theoretical formulas. These can be treated as the basis for furthe quantitative study of sediment sorption-desorption characteristics. |
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| Keywords: | heavy metal pollutants sediment particles sorptkm |
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