| 2. | 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。 |