印染废水的主要处理技术及评释

Review on Main Technologies for the Treatment of Printing & Dyeing Wastewater

印染废水具有水量大、有机污染物含量高、碱性大、水质变化大等特点,属难处理的工业废水之一。目前,用于印染废水处理的主要方法有物化法、生化法、化学法以及几种工艺结合,各种处理方法对污染物去除效率及脱色差别较大,而印染废水处理的最大难点就是脱色处理。文章系统介绍了印染废水的各种主要处理技术,评释了它们各自的特点和存在问题,并展望了印染废水处理技术的应用前景。

Printing and dyeing wastewater was intractable industrial wastewater because of its high concentration of complicated constituents of water,organic pollutants,alkalis,and the unstable quality of water.The treatment methods of printing and dyeing wastewater included physicochemical method,biochemical method,chemical method and the combination of several methods.The efficiency of pollutant removal and decolorization of different treatment methods was different obviously,and the problem of decolorization of printing and dyeing wastewater was very difficult to solve.In the paper,the treatment methods of printing and dyeing wastewater were introduced systematically and analyzed respectively.Looking forward to their future application showed great significance.