【摘要】 研究了精制椰壳活性炭吸附地热水中微量苯酚的各项参数,通过静态试验系统考察了活性炭用量,水样pH,反应时间,苯酚初始浓度等重要因素,确定了处理地热水中苯酚的最佳条件:活性炭用量6 g/L,pH值6.5,反应时间6 h,苯酚的初始浓度0.5 mg/L,处理效果最佳;并据此进行了动态小试试验,从动力学角度分析吸附原理,其动力学更好的符合伪二级反应动力学模型。将动态试验数据在origin软件中处理,得到适用于活性炭固定床吸附苯酚的穿透曲线模型,旨在为苯酚吸附过程的设计提供参考。更多还原

【Abstract】 The treatment of geothermal water containing trace phenol with refined coconut shell activated carbon was studied in this paper.The important factors such as dosage of activated carbon,pH value,adsorption time and initial concentration of phenol have been systematically examined through the static experiment,and the optimum condition of adsorption was determined as follows:dosage of activated carbon was 6g/L,optimum pH was 6.5,adsorption time was 6 h,initial concentration of phenol was 0.5mg/L;according to these factors,the dynamic experiment was done.Study on the adsorption fundamentals from the aspects of kinetics,the adsorption kinetics showed better agreement with pseudo-second-order kinetic model.In order to get the adsorption breakthrough curve model of phenol on activated carbon fixed bed,the experimental data of dynamic experiment was dealt with origin software,and this model is useful for the process design of phenol’ adsorption.更多还原