中文摘要：

为了研究改性前后活性炭对水中低浓度头孢拉定的吸附效果,探讨了投加量、初始浓度、温度、p H值和时间对吸附去除率的影响。结果表明,经Fe（NO3）3溶液改性后,活性炭对头孢拉定的吸附能力得到加强;经Fe（NO3）3溶液浸渍改性获得的活性炭对头孢拉定的吸附,能很好地与Langmuir型等温方程拟合,线性相关数达0.98以上;吸附过程符合二级反应动力学描述,线性相关数达0.998以上。

英文摘要：

In this study,the effect of surface modified activated carbon on its adsorption of cefradine at low concentration was discussed,meanwhile,various factors were studied,including dosage,initial concentration,temperature,solution p H and adsorption time. The results showed that adsorption capacity of activated carbon treated by the Fe（ NO3）3solution was enhanced,and the adsorption isotherm had a close agreement with Langmuir equation,and the linear correlation coefficient was above 0. 98. The second-order reaction kinetics was successfully used to describe the adsorption process,and the linear correlation coefficient was above 0. 998.