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DOI : 10.17640/KSWST.2018.26.6.3 , Vol.26, No.6, 3 ~ 13, 2018
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| Title |
| Assessing the Influence Radius of a Water Treatment System Installed in a Reservoir Using Tracer Experiment and 3D Numerical Simulation |
| 박형석 Hyung Seok Park , 이은주 Eun Ju Lee , 지현서 Hyun Seo Ji , 최선화 Sun Hwa Choi , 정세웅 Se Woong Chung |
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| Abstract |
| The objective of this study was to evaluate the radius of influence of effluent of water treatment system developed for the purpose of improvement of reservoir water quality using fluorescent dye (Rhodamine-WT) tracer experiment and 3-D numerical model. The tracer experiment was carried out in a medium-sized agricultural reservoir with a storage capacity of 227,000 ㎥ and an average depth of 1.6 m. A guideline with a total length of 160 m was installed at intervals of 10 m in the horizontal direction from the discharge part, and a Rhodamine measurement sensor (YSI 6130, measurement range 0-200 μg/L) was used to measure concentration changes in time, distance, and depth. Experimental design was established in advance through Jet theory and the diffusion process was simulated using ELCOM, a three dimensional hydraulic dynamics model. As a result of the study, the direct effect radius of the jet emitted from the applied water treatment system was about 50-70 m, and the radius of physical effect by the advection diffusion was judged to be 100-120 m. The numerical simulations of effluent advection-diffusion of the water treatment system using ELCOM showed very similar results to those of the impact radius analysis using the tracer experiment and jet flow empirical equations. The results provide valuable information on the spatial extent of the water quality improvement devices installed in the reservoir and the facility layout design. |
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| Key Words |
| ELCOM, Jet flow, Reservoir, Rhodamine, Tracer |
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