论文部分内容阅读
活化凹凸棒石对三种阳离子染料有良好的脱色作用并符合Ｆｒｅｕｎｄｌｉｃｈ吸附等温式；脱色率随ｐＨ增加而递增，但各染料有差别；吸附过程似可分为两个阶段并呈现一级及应动力学的特征。用它作主要组份的吸附剂对阳离子染料生产废水的处理效果良好，脱色率和ＣＯＤｃｒ去除率可分别达到８７．５％～９９．８％和４５．４％～７２．３％；再生处理简单且其效果基本不降低，为阳离子染料生产废水的综合治理提供了一种有效而廉价的新型预处理方法。
Activated attapulgite has good decolorization effect on three cationic dyes and conforms to the Freundlich adsorption isotherm; the decolorization rate increases with the increase of pH, but the dyes are different; the adsorption process can be divided into two stages and presents a first-class and should Kinetic characteristics. The adsorbent with it as the main component has a good effect on the treatment of cationic dye wastewater, and the decolorization rate and CODcr removal rate can reach 87.5% -99.8% and 45.4% -72.3% respectively; and the regeneration treatment Simple and its effect is basically not reduced, providing an effective and cheap new pretreatment method for the comprehensive treatment of cationic dye wastewater.