Application of PACT+Fenton oxidation process in the treatment of printing and dyeing wastewater in Southern Jiangsu province
In view of the high organic concentration and difficult degradation nature of the printing and dyeing wastewater from a medical dressing company in southern Jiangsu.A treatment process combining physicochemical and biochemical methods was employed,and the effluent from the terminal triple sedimentation tank was further treated by Fenton advanced oxidation process.The treatment capacity is 8 000 m3/d.The wastewater treatment process,main design parameters and treatment outcomes were introduced.The effluent water quality consistently meets or exceeds the standards outlined in Water pollutants discharge limits for urban sewage treatment plants and key industries in taihu lake region(DB 32/1072-2018)as well as Water pollutants discharge standard for textile dyeing and finishing industry(GB 4287-2012).This process demonstrates stable effluent water quality,robust adaptability to water quality changes,low operational cost and environmental friendliness.
Printing and dyeing wastewaterPACTFenton oxidation processWater treat-mentEngineering application