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DOI : 10.17640/KSWST.2018.26.5.29 , Vol.26, No.5, 29 ~ 39, 2018
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| Title |
| A Study on the Equitable Inflow Water Distribution to Flocculation Basin through Distribution Channel using Water-CFD |
| 박진영 Chinyoung Park , 전용성 Yongseong Jeon , 하현섭 Hyunsup Ha , 황태문 Tae-mun Hwang , 조정훈 Jeonghoon Cho |
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| Abstract |
| The water should be evenly distributed to each flocculation/sedimentation basin because it can affect the floc formation and the efficiency of sedimentation. In order to find the optimum operation method for the equal distribution of the flow rate by using the CFD (Water-CFD), the flow analysis was carried out by considering the basic operation condition and improvement plans. From the results of the CFD simulation, the following conclusions were obtained. When 8 all flocculation/sedimentation basins were operated, the influx of the outermost 1st and 8th flocculation/sedimentation basins were the largest but the amount of 4th and 5th flocculation/sedimentation basins which were located at the center of the distribution channel were the least. The operation rate of water purification plant was 40% compared to facility capacity, therefore it was considered to stop the flocculation/sedimentation basins. The optimum operation method to minimize the influent flow difference was the stopping the 4th and 5th flocculation/sedimentation basins located at the center. The other methods such as the extension of the distribution channel(waterway) and the installation of the disturbance plate near the inlet of flocculation basin need the civil engineering work and the lots of extra costs. However, the effect of the equal distribution is not greater than the change of operation method. |
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| Key Words |
| Distribution channel, Equitable Inflow, Flocculation/sedimentation basins, Operation method Water-CFD(Computational Fluid Dynamics) |
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