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http://dx.doi.org/10.4491/KSEE.2011.33.7.536

A Study on the Design of Artificial Stream for Riverbed Filtration in Multi-purpose Filtration Pond  

Sohn, Dong-Hoon (Department of Environmental Engineering, Yeungnam University)
Park, Jae-Young (Water Resources Investigation & Planning Department, Korea Water Resources Corporation)
Kim, Seung-Hyun (Department of Environmental Engineering, Yeungnam University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.33, no.7, 2011 , pp. 536-543 More about this Journal
Abstract
In order to find the best design of artificial stream for the riverbed filtration in multi-purpose filtration pond, a mathematical model was developed employing the energy line and the Manning's formula and was analyzed by the Euler's technique. Various design factors were investigated through scenario analyses of the artificial stream using the model. Results showed that the appropriate slope of the stream bottom was 2/10,000 and the appropriate infiltration rate at the streambed was $2.5m^3/m^2-day$ for the pond with the area of 100 ha, and that the Manning's roughness coefficient in this case was expected to be about 0.026 and the maximum water-depth was less than 1m. It was also shown that the longer the artificial stream the more advantageous it became for the riverbed filtration. Furthermore, results showed that it was not an efficient way to prevent clogging of the streambed by increasing the flow velocity of the stream and that the performance was higher near a weir with a large head drop.
Keywords
Multi-purpose Filtration Pond; Artificial Stream; Mathematical Model; Riverbed Filtration; Optimum Design;
Citations & Related Records
Times Cited By KSCI : 9  (Citation Analysis)
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