Application of Phragmites australis to remove phenol from aqueous solutions by chemical activation in batch and fixed-bed columns

文献类型： 外文期刊

第一作者： Shi, Sheng-Li

作者： Shi, Sheng-Li;Lv, Jun-Ping;Liu, Qi;Nan, Fang-Ru;Feng, Jia;Xie, Shu-Lian;Jiao, Xiao-Yan

作者机构：

关键词： Adsorption; Phragmites australis; Fixed-bed column; Phenol; Kinetic; Mechanism

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

ISSN： 0944-1344

年卷期： 2018 年 25 卷 24 期

页码：

收录情况： SCI

摘要： The ability of the agricultural residue of Phragmites australis to serve as an absorbent material used to remove phenol from aqueous solutions in batch and continuous fixed-bed columns was investigated. Prepared adsorbents were characterized by SEM, FTIR, and pHpzc methods. The equilibrium adsorption (qe) of phenol was increased from 9.61 to 29.40 mg/g when the initial phenol concentrations increased from 50 to 150 mg/L. The max adsorption capacity of Phragmites australis was found to be 29.60 mg/g at 30 A degrees C. In column studies, a higher flow rate, higher initial concentration of phenol, and shorter packing layer height increase the column adsorption capacity of phenol. In a batch and continuous fixed-bed column studies, the experiment data was evaluated by some classic models. Fitting degree between the experimental results shows that the pseudo-second-order adsorption kinetics and Langmuir model were the best. Thomas and Yoon-Nelson models were in good agreement with the experimental breakthrough curve data. Both batch and continuous investigation indicated that Phragmites australis could be used as a fine adsorbent to remove phenol and that the adsorption efficiency improved significantly in the column experiment.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序