【摘要】 通过对铁屑进行改性，并辅以其它活性材料构成填料塔对印染废水进行处理。结果表明改性铁法与传统的铁屑固定氏法相比较，对可溶性染料的处理效果，二者相近；对不溶性染料本法的脱色率和ＣＯＤ去除率比传统铁屑法提高２０％～３０％，基本上解决了传统铁屑法不容易处理不溶性染料的难题。综合考虑ＣＯＤ去除率、脱色率两方面因素，选择ｐＨ值５～６，接触时间１３～１５ｍｉｎ为最佳。更多还原

【Abstract】 he treatment of dyeing wastewater with iron chips and other packed column has been studied in this paper. Adding some active chemicals in iron chips and changing the adsorptive property of iron, to rise its ability to treat dyeing wastewater, result in a high removal of colour and COD from dyeing wastewater. The removing rate of insoluble dye with this method is 20%-30% higher than that with the original method. Meanwhile, the influence factor to the efficiency of this method was also discussed.更多还原