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Evaluation of the mixing and Hydrodynamic Behavior in rapid mixing stage on using Computational Fluid Dynamics  

Cho, Youngman (부산광역시 상수도사업본부 수질연구소)
Yoo, Soojeon (부산광역시 상수도사업본부 수질연구소)
Yoo, Pyungjoung (부산광역시 상수도사업본부 수질연구소)
Kim, Daeyoung (명장정수사업소)
Hwangbo, Bonghyeong (명장정수사업소)
Publication Information
Journal of Korean Society of Water and Wastewater / v.23, no.6, 2009 , pp. 799-810 More about this Journal
Abstract
With time, the stable management of turbidity is becoming more important in the water treatment process. So optimization of coagulation is important for the improvement of the sedimentation efficiency. we evaluated the mixing and hydrodynamic behavior in the coagulation basin using Computational Fluid Dynamics (CFD). The items for evaluation are a location and the speed of agitator and angle of an injection pipe. The results of the CFD simulation, the efficacy of mixing in the coagulation basin was not affected according to one or two injection pipe and angle of an injection pipe. If there is a agitator near outlet of coagulation basin, the efficacy of mixing don't improve even though the speed of agitator increase. So location of agitator is perfect when it locate center at the inlet stream. The coagulation basin at this study, the proper speed of agitator is form 20rpm to 30rpm.
Keywords
CFD(Computational Fluid Dynamics); Flocculator; clock-wise;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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