Hydrolysis Acidification-A/O-Machinery Clarification For Treatment Of Printing & Municipal Wastewater

The study of textile wastewater treatment is of important theoretical and practical significance. Based on analysis of existing textile wastewater treatment processes, and on experiments of textile wastewater hydrolysis acidification, flocculation and decolor, the improved process in Northern Huzhou City Urban Sewage Treatment Plants was determined. It enables the combined treatment of high-concentration textile wastewater and municipal sewage to become a reality.The main conclusions of this thesis include: (1) it is necessary to conduct pre-treatment of high-concentration textile wastewater before entering the municipal sewage treatment plant. At this stage, hydrolysis acidification demonstrated obvious effects. The optimal conditions for hydrolysis acidification are pH 6-7, HRT 17 hours. (2) Appropriate combination of coagulant and special decolor detergent is key to the flocculation and decolor process. The optimal parameters of the process are...