Progress Research on Treatment Methods of Printing and Dyeing Wastewater

Abstract

With the rapid development of the printing and dyeing industry, the amount of wastewater discharged is also increasing. Printing and dyeing wastewater is recognized as one of the most difficult industrial wastewater treatments due to its complex composition, high content of refractory organic matter, high chroma, high alkalinity and poor biodegradability. This paper mainly reviews the characteristics and effects of the advanced oxidation method (Fenton oxidation method, photocatalytic oxidation method, ozone oxidation method, wet oxidation method, electrochemical oxidation method) for treating printing and dyeing wastewater, a preliminary outlook on the combined use of several methods was also carried out.