中文摘要：

该文研究了2种不同性质的吸附剂XAD-4大孔吸附树脂和活性炭对NPn EO的吸附行为。实验结果表明：2种吸附剂对NPn EO都具有一定的吸附作用,XAD-4对NPn EO的吸附效果好于活性炭。通过对2种吸附剂进行等温吸附研究发现,升高温度,XAD-4对NPn EO的吸附量增大;活性炭的吸附能力受温度影响不显著。采用Langmuir方程和Freundlich方程对NPn EO在2种吸附剂上的吸附行为进行等温方程拟合,结果表明,吸附等温线都更加符合Langmuir方程,相关系数大于0.99,属于单层分子吸附。动力学研究结果表明：NPn EO在XAD-4和活性炭上的吸附符合准二级动力学方程,相关系数大于0.99。

英文摘要：

Nonylphenol ethoxylates（NPn EOs）,as main surfactants of ecological risks in the world,have drawn concerns nowadays. In this paper,two different kinds of adsorbents,macroporous resins（XAD-4） and activated carbon（GAC） on which NPn EOs were to be adsorbed were tested in a bench-scale experiment regarding their sorption behaviors. The experiment suggested both of the adsorbents had rather high NPn EOs adsorption capacity,and the adsorption capacity of XAD-4 was better than that of GAC;and the isotherm of NPn EOs adsorption onto two adsorbents showed that as the temperature increased,so did the adsorption capacity of NPn EO on XAD-4. However,adsorption capacity of NPn EO on GAC was unlikely affected by temperature. In addition,the fitting of NPn EOs adsorption into models indicated sorption behavior of two adsorbents could be better described by Langmuir adsorption model than by Frendlich adsorption model,with the correlation coefficients above 0.99,belonging to the sort of monolayer adsorption. The adsorption kinetics were also tested with the pseudo-first-order,second-order and pseudo-second-order reaction models,which showed that NPn EOs adsorption process of two adsorbents were well described by pseudo-second-order reaction model,with the correlation coefficients being above 0.99.