活性炭纤维电极法处理含酚废水的研究

以活性炭纤维作为阳极,不锈钢板为阴极,采用电化学氧化法对模拟的含酚废水进行了处理.结果表明,该方法可以有效分解除去水中的苯酚,苯酚和COD的去除率均能达到95%以上,其最佳的操作条件为:pH值为3、进水苯酚浓度为500mg/L、电流密度为26mA/cm2、Na2SO4浓度为15g/L.同时,通过对比不同电极材料的降解效果,证明了具高比表面积的活性炭纤维作为电极材料,能充分将其导电、吸附、催化及稳定性能有效地结合起来,实现高效净化,具有良好的应用前景.

Study on treatment of the wastewater containing phenolwith ACF electrode method

The treatment of the wastewater containing phenol with electro-oxidation method was studied.The electro-bath was made up of activated carbon fiber(ACF)-anode and cathode of the stainless steel plate.The factors that would affect the process of degrading phenol were studied.The result indicates that the optimum operation conditions are pH 3,phenol concentration 500mg/L,current density 26mA/cm2,concentration of assistant electrolyte 15g/L. The optimum operation conditions led to the fact that the removal rates of phenol and COD were both more than 95%.Meanwhile,the contrastive experiments were carried out on degrading phenol wastewater with different electrodes.It is revealed that a complete phenol and COD removal can be obtained by the ACF electrode,on account of its high specific surface area and adsorption capacity,excellent conductivity.The mechanism of phenol degradation in the electrochemical treatment system has also been explored preliminarily.