稻壳吸附剂的制备及其吸附聚丙烯酰胺的应用研究

Preparation of rice hull adsorbent and its application to treatment of polyacrylamide

采用稻壳为原料,使用浓硫酸炭化活化稻壳方法制备稻壳活性炭。将所制备的活性炭吸附处理聚丙烯酰胺污水,确定了活性炭最佳吸附能力的制备工艺条件,并通过一系列实验得出了稻壳吸附剂吸附溶液中HPAM的最佳实验条件,并深入研究了其吸附处理HPAM过程的吸附动力学,确定了其等温吸附线模型。实验结果表明,采用浓硫酸处理稻壳的方法制备活性炭具有方法简单、处理效果好的特点,因此在含聚污水的前期预处理中具有良好的应用前景。

Active carbon was prepared from rice hull, which was treated with concentrated sulfuric acid. And through the adsorption of hydrolyzed polyacrylamide （HPAM） waste water, the preparation of active carbon with the optimal adsorption capacity was studied. The optimum condition in the treatment of HPAM waste water with active carbon was obtained through a series of experiments.The adsorption kinetics was studied , and the adsorption isotherm was determined. The result indicated that the preparation of active carbon by concentrated sulfuric treatment of rice hull was simple and the as-prepared active carbon was effective in removing HPAM, so it had a good prospective in the treatment of polymer-containing waste water.