Traditional Culture Encyclopedia - Traditional virtues - How to treat printing and dyeing wastewater
How to treat printing and dyeing wastewater
Printing and dyeing wastewater is one of the difficult industrial wastewater. It has the characteristics of high COD concentration, high chroma, high salt content, difficult biochemical degradation of organic matter, and large change of water quality and quantity with time (intermittent discharge of wastewater).
The most prominent problem in the treatment of printing and dyeing wastewater is the removal of chromaticity and refractory organic matter.
The treatment methods of printing and dyeing wastewater include biological method, physical and chemical method and the combination of several methods.
The main pollutants in wastewater are COD, BOD5, SS and chromaticity. During normal production, 3000 tons of wastewater is discharged every day.
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