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http://dx.doi.org/10.5322/JESI.2021.30.12.983

Optimization of Distribution Basin Weirs at a Sewage Treatment Plant Based on Computational Fluid Analysis Using the Taguchi and Minitab Method  

Jung, Yong-Jun (Department of Environmental Engineering, Catholic University of Pusan)
Park, Hae-Sik (Busan Environmental Corporation)
Cho, Young-Man (Busan Metrocity)
Publication Information
Journal of Environmental Science International / v.30, no.12, 2021 , pp. 983-991 More about this Journal
Abstract
The role of the distribution basin role is to apportion incoming raw water to the primary sedimentation basin as part of the water treatment process. The purpose of this study was to calculate the amount of water in the distribution basin using computational fluid dynamics (CFD) analysis and to find a way to improve any non-uniformity. We used the Taguchi method and the minitab tool as optimization methods. The results of the CFD calculation showed that the distribution flow had a deviation of 5% at the minimum inflow, 10% at the average inflow, and 22% at the maximum inflow. At maximum flow, the appropriate heights of the 7 weirs(C, D, A, B, E, F, G) were 40 mm, 20 mm, 20 mm, 0, 0, 0, and 20 mm, respectively, according to the Taguchi optimization tool. Here, the maximum deviation of the distribution amount was 9% and the standard deviation was 23.7. The appropriate heights of the 7 weirs, according to the Minitab tool, were 40 mm, 20 mm, 20 mm, 0, 0, 0, and 20 mm, respectively, for weirs C, D, A, B, E, F, and G. Therefore, the maximum deviation of the distribution amount was 8% and the standard deviation was 17.1, which was slightly improved compared to the Taguchi method.
Keywords
Computational Fluid Dynamics(CFD); Taguchi method; Mini tab; optimization; Distribution basin;
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