The printing and dyeing wastewater is difficulty to treat, because of its characteristics, such as large water volume, high concentration organic pollutant, deep chromaticity, high alkalinity, changeable water quality and complex ingredient.

• 摘要印染废水具有水量大、有机污染物浓度高、色度深、碱性大、水质变化大、成分复杂等特点，属较难处理的工业废水之一。