PVAF 交换纤维对酸性染料的脱色性能研究

RESEARCH ON THE DECOLORIZATION OF ACID DYES TREATED WITH PVAF EXCHANGE FIBER

系统研究了ＰＶＡＦ阴离子交换纤维对酸性橙Ⅱ的交换脱色特性及其主要影响因素。结果表明：ＰＶＡＦ对酸性染料脱色能力强，再生简便。吸附平衡浓度与吸附量关系符合Ｌａｎｇｍｕｉｒ吸附等温式，求出了不同温度下交换脱色的热力学参数。Ｂａｎｇｈａｍ方程能较好地反映体系动力学特征。

The behavior and Influence factors of PVAF anion exchange fiber on decolorizing Acid Orange Ⅱ dye are studied.The result shows:PVAF has superior ability to decolorize Acid Orange Ⅱ and can be regenerated easily.The relation ship between equilibrium concentration and amount of adsorbed dye accords with Langmuir adsorption equation.Thermodynamic parameters of decolorization at different temperature are evaluated.It is found that the dynamic behavior of the dye PVAF system is characterized as Bangham equation.