印染行业是工业废水排放大户,其水质变化十分复杂,污染物主要是织物的夹带和加工过程中所用的染料、化学助剂等。印染废水因水量大、有机物浓度高、色度深、碱性大、水质水量波动大,是较难处理的工业废水之一。多年来,在印染废水处理方面人们做了许多研究工作,且取得了较好的效果。 Dyeing and printing industry is a large industrial wastewater discharge, the water quality changes are very complicated, the main pollutants are entrained fabric and processing used in the dye, chemical additives. Printing and dyeing wastewater due to large amount of water, high concentrations of organic matter, color depth, alkaline, water quality fluctuations, is more difficult to deal with industrial wastewater. Over the years, many people have done a lot of research work in printing and dyeing wastewater treatment and achieved good results.