Experiment on optimal processing condition of inner electrolytical decolorization

The influence of various factors on the decolorization effect of printing and dyeing waste liquid with inner electrolyse is investigated experimentally,the factors being pH,retention period,ferro-carbon ratio,oxygen supply,colority of liquid admission,and dyestuff structure. It is found that the main influencing factors are pH, retention period, and ferro-carbon ratio. In this paper,the square-error analysis and cross-test are used to determine the optimal processing conditions of inner electrolytical decolorization of printing and dyeing waste liquid.