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.

Abstract
1. 서 론
2. 재료 및 방법
    2.1. 연구 대상 공정
    2.2. 전산유체 해석
    2.3. 최적화 방법
3. 결과 및 고찰
    3.1. 웨어 월류량 계산
    3.2. 다구찌 최적화
    3.3. Minitab 최적화
    3.4. 최적화 평가
4. 결 론
REFERENCE

• 정용준(부산가톨릭대학교 환경공학과) | Yong-Jun Jung (Department of Environmental Engineering, Catholic University of Pusan)
• 박해식(부산환경공단) | Hae-Sik Park (Busan Environmental Corporation)
• 조영만(부산광역시) | Young-Man Cho (Busan Metrocity) Corresponding author