COAGULATION-HYDROLYSIS-CONTACT OXIDATIONDECOLORIZATION OF DYEING WASTEWATER AND REUSE

Printing and dyeing wastewater is of high quantity, high chroma, high organic content, low biodegradability and other characteristics, the coagulation- hydrolytic acidification- contact oxidation- a printing and dyeing wastewater decolorization process, practice has proved, the quality of treated water stability, convenient operation and management, water directly back to the use of printing and dyeing workshop, improves the ratio recycle water, it has great economic benefit and social benefit, so this process has great value of application in printing and dyeing wastewater treatment and reuse.