ADSORPTION OF PHOSPHORUS ON DIFFERENT SEDIMENTS
Experiments were performed to investigate the adsorption behaviors of phosphorus on different sediments. Two kinds of sediment from Yangtse River were selected, one of which is silt with D≤0.062mm and the other is sand with 0.062mm≤D≤0.25 mm. The effects of initial concentration of phosphorus and sediment content on the adsorption of phosphorus were studied. As the initial concentration of phosphorus increased, both the total and unit amount of phosphorus adsorbed by sediments increased, the adsorption proportion of phosphorus decreased; However, as the sediment content increased, both the total adsorbed amount and the adsorption proportion of phosphorus by sediments increased, the unit adsorbed amount decreased; Under the same experiment condition, the adsorbed amount of phosphorus by silt was more than by sand obviously. The adsorption behavior of phosphorus on silt accorded with the isothermal adsorption isotherms better than on sand; On the same kind of sediment, the adsorption behavior of phosphorus accorded with Freundlich adsorption isotherm better than Langmuir adsorption isotherm.
adsorption silt sand phosphorus ezperiment
Mei Chen Yang Xiao Dexiang Wang
State Key Laboratory of Hydrology-water Resources and Hydraulic Engineering, Hohai University Nanjing 210098, China
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
1090-1095
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）