吸附饱和苯酚的活性炭电化学再生的研究

Study of Electrochemical Regeneration for Activated Carbon of Adsorption Phenol Saturated

采用阳极扩展电化学氧化技术对吸附饱和苯酚的活性炭进行了电化学再生.实验表明:在石墨作为极板材料,投加氯盐的前提下,Cl-放电产生的Cl2溶于水生成的具有强氧化能力的物质HClO,将吸附在活性炭孔道表面的高浓度苯酚氧化是活性炭得以再生的根本原因.投加盐的种类、盐量、电流强度、电解时间和pH是影响再生效果的重要因素.

The adsorption phenol saturated activated carbon was regenerated by electrochemical technology with anode extension. The results showed that Cl^- would be changed into Cl2 when chlorine salt was added with graphite electrode,HCIO with good oxidizing would be made because of the reaction between Cl2 and H2O, the regeneration of activated carbon came from HClO oxidizing phenol,the key effective factors were the kind and quantity of salt dosed, amperage,electrolysis time and pH.