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首页> 外文会议>2011 International Conference on Materials for Renewable Energy Environment >Adsorption of phosphorus from eutrophication water by modified diatomite
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Adsorption of phosphorus from eutrophication water by modified diatomite

机译：改性硅藻土对富营养化水体中​​磷的吸附。

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Modification of diatomite and adsorption of phosphorus from Eutrophication water by modified diatomite have been researched. It was found that the characteristic of diatomite has been change after modified, especially the surface area, number and size of micropores were increased obviously, the surface area of modified diatomite had increased 23 times. Phosphorus sorption was affected by the temperature and pH value, if temperature was higher, the adsorption balance time is shorter; adsorption capacity was decreased when pH value was increase between 4 to 11. Pseudo-second reaction kinetics equation could describe characteristics of phosphorus sorption well, phosphorus sorption behavior of modified diatomite can be simulated by Freundlich adsorption isotherm model.
机译：研究了改性硅藻土对硅藻土的改性及富营养化水中磷的吸附情况。发现改性后硅藻土的特性发生了变化，特别是微孔的表面积，数量和大小明显增加，改性硅藻土的表面积增加了23倍。磷的吸附受温度和pH值的影响，温度越高，吸附平衡时间越短。当pH值在4至11之间增加时，吸附能力降低。伪秒动力学方程可以描述磷的吸附特性，可以用Freundlich吸附等温线模型模拟改性硅藻土的磷吸附行为。

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