活性炭对挥发酚的吸附特性

 利用活性炭对挥发酚进行吸附实验，通过测定挥发酚在水中的浓度变化情况，考查了在不同吸附剂用量、pH值、吸附时间、温度、起始浓度条件下，活性炭对挥发酚去除效果的影响。进而分析活性炭对挥发酚的吸附特性，为含挥发酚废水处理方案的设计提供参数。结果表明，在12℃下，吸附时间20min、活性炭的用量为0.7g/50mL，在不改变水样pH值条件下，挥发酚的去除率最高达96.04%，而且低起始浓度下挥发酚的去除效果明显高于高浓度下的去除效果。活性炭吸附挥发酚的等温线符合Freundlich方程式。

Absorption Characteristics of Activated Carbon on Volatile Phenol

The absorption experiments of activated carbon on volatile phenol were carried out in different adsorbent dosages, pH values, adsorbent durations, temperatures, and initial concentrations, based on concentration measurement of volatile phenol in water. The adsorption characteristics of activated carbon on volatile phenol are analyzed, and the parameters obtained will provide a guidance for the design of sewage treatment with volatile phenol. The results show that the absorption reaches the maximum point of 96.04% when the temperature is 12℃, the adsorption time 20min, and activated carbon dosage 0.7g/50mL. The removal effect of volatile phenol under low initial concentration is better than under high initial concentration. The absorption isotherm of activated carbon on volatile phenol is consistent with the results of Freundlich.