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http://dx.doi.org/10.17663/JWR.2017.19.4.451

Simulation of Various Baffle to Improve Settling Efficiency in Constructed Wetland using CFD  

Noh, Tae gyun (Urban LID co., Ltd)
Jeon, Jechan (National Institute of Environmental Research)
Kim, Lee Hyung (Department of Civil and Environmental Engineering, Kongju National University)
Publication Information
Journal of Wetlands Research / v.19, no.4, 2017 , pp. 451-458 More about this Journal
Abstract
In this study, the removal efficiency of the wetland in terms of particulate matter and dead water zone through the application of baffles in the sedimentation were simulated with the use of Computational Fluid Dynamics (CFD) to determine the design of a cost-effective constructed wetland. As a result, it was analyzed that the application of the baffle in the sedimentation tank affect the flow and sedimentation rate. Fine particles such as $2{\mu}m$ and $5{\mu}m$ showed high sedimentation rate when the baffles are installed horizontally. large particles such as $10{\mu}m$ and $20{\mu}m$ showed also high deposition rate when the baffles are installed vertically. In addition, the vertical baffles is considered to be more efficient than other baffle types in terms of maintenance since the particulate matter are concentrated in narrow areas. Therefore, it is considered that the selection of the most applicable type of baffle depends on the design purpose of the wetland to be constructed.
Keywords
Baffle; Computational Fluid Dynamics(CFD); Constructed wetlands; Particles; Sedimentation;
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Times Cited By KSCI : 1  (Citation Analysis)
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