摘要
利用不同粒径的沸石对水中磷的吸附性能进行初步研究。结果表明：投加量7 g，反应时间60min，温度35℃，pH 3～9时沸石对水中磷的吸附效果最佳；沸石对磷的吸附动力学过程适合用拟二级速率方程进行拟合，拟合系数接近1；吸附等温线符合Freundlich方程所描述的规律，温度越高，沸石对磷的吸附性能越好；在相同的温度条件下，粒径越小的沸石对磷的吸附能力越强。
The zeolite with different particle sizes was selected asadsorbent to examinethe adsorption performanceof phosphorus in water.The results showed that the optimal condition of adsorption of phosphorus by zeolite was a dose of 7g,60min of reaction time,35℃ of temperature,and 3~9 of pH value.The kinetics process of adsorption of phosphorus may be more suited to fit by pseudo -secondary order kinetics equation,and the fitting coefficients were close to 1 .The adsorption isotherm may be more suited to be described by Freundlich equation.The adsorption performance of phosphorus by zeolite became betterwith an increase of temperature.Under the same condition of temperature,zeolite with smaller particle sizeshad higher adsorption capacity of phosphorus.
出处
《环境科学导刊》
2014年第5期52-56,共5页
Environmental Science Survey
基金
国家自然科学基金项目(41201507)
山东省"两区"建设专项资金项目(2011-黄-19)
青岛市民生计划项目(13-1-3-103-nsh)
关键词
沸石
磷
吸附
性能
研究
zeolite
phosphorus
adsorption
property
Study
