Application of Magnetic Coagulation High-Efficiency Precipitation Process in the Advanced Treatment Section of Sewage Treatment Plants

The magnetic coagulation high-efficiency sedimentation technology organically combines flocculation and magnetic separation, fully utilizing the magnetic cohesion and the bridging effect of flocculants to form magnetic flocs for accelerated sedimentation. Taking the second phase of Chengnan Wastewater Treatment Plant as an example, the application of magnetic coagulation high-efficiency sedimentation process in the project is studied. Hydraulic models and hydraulic velocity vector models of the mixing agitator and coagulation reaction agitator are established. The impeller type and speed of the agitator are calculated based on the tank type and chemical properties. CFD simulation is used to study the effect of adding magnetic powder to wastewater.