不同化学方法再生活性炭的对比研究
The Comparisons for Regeneration of Activated Carbon by Different Chemical Regeneration Methods
Abstract
本文研究了苯酚水溶液在活性炭上的吸附平衡关系,溶液PH值对活性炭吸附性能的影响。对比研究了各种操作方式下采用nAOH碱法再生活性炭和电化学方法再生活性炭的再生效率,实验结果表明,电化学方法再生活性炭比nAOH碱法再生活性炭从再生效率上考虑要明显优越。同时用两种再生方法对吸附苯酚后的活性炭进行循环多次再生,探讨了多次再生对活性炭再生效率的影响。 Adsorption equilibrium of phenol in activated carbon and the influence of pH on adsorption equilibrium were measured.Comparing the results of regeneration in different operative methods and regeneration ways, the spent activated carbon with phenol can be regenerated with better regeneration efficiency by electrochemical regeneration than by NaOH solution regeneration.With the increase of regeneration cycle times in both regeneration methods, the regeneration efficiency would decrease a little.