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通过紫色水稻土有机无机复合胶体对磷的吸附及吸附动力学特征研究 ,表明 :紫色水稻土有机无机复合胶体对磷的吸附能力比土壤高 0 4~ 6 6 9倍 ,不同土壤类型复合胶体对磷的吸附能力不一样 ,复合胶体去除部分有机质后 ,吸附能力明显增加 ;复合胶体对磷的吸附分快反应和慢反应两个过程 ,在 2 0分钟内复合胶体对磷的吸附量占整个过程的 5 2 %~ 71% ,增高温度可提高复合胶体对磷的吸附量和速率 ,Elovich方程对吸附过程的拟合程度最好 .
The adsorption and adsorption kinetics of phosphorus by organic-inorganic colloids in purple paddy soil showed that the adsorption capacity of organic-inorganic colloids on purple paddy soil was 0 4 ~ 6 6 9 times higher than that of soil, and that of different soil types The adsorption capacity of phosphorus is not the same, the composite colloidal removal of some organic matter, the adsorption capacity increased significantly; composite colloids on phosphorus adsorption points and fast reaction slow reaction two processes within 20 minutes, the colloidal composite adsorption of phosphorus accounted for the entire process Of 5 2% ~ 71%. Increasing the temperature can increase the adsorption amount and rate of phosphorus on the composite colloid. The Elovich equation has the best fit to the adsorption process.