Comparing the effluent containing indigo from jean dyeing treated by membrane technique with those treated by flocculating method in respect to colour depth and COD removal, the membrane filtered water is better and can be reused.

• 采用膜技术和絮凝方法处理牛仔布印染过程中的生产废水。 对经处理后的水色度和COD的去除进行了比较。