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An Experimental Study on the Design Factors of Raw-water Supply System in Floodplain Filtration  

Kim, Hoh-Seok (Department of Environmental Engineering, Yeungnam University)
Kim, Seung-Hyun (Department of Environmental Engineering, Yeungnam University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.31, no.11, 2009 , pp. 957-964 More about this Journal
Abstract
Sand tank experiments were performed along with on-site supplier experiments in order to obtain design factors for the raw-water supply system in floodplain filtration. Results of the sand tank experiment elucidated that the infiltration rate was approximately proportional to the soil permeability and was not significantly influenced by short periods of rest. The average daily infiltration rate calculated by taking both flood and rest periods into account increased with increasing flood period, and was observed to reach an asymptote. Under the conditions of this study, the maximum infiltration rates obtained for both Daegu and Mulgeum soils with 15 min/ 30 min of rest/flood periods were 6.3 m/day and 1.4 m/day respectively, which were 42% and 70% of their hydraulic conductivities, respectively. The process of soil filtration resulted in a gradual decrease of hydraulic conductivity; a decrease of 27% was observed for the soil of Mulgeum over a period of 8 days. From the data obtained from the supplier experiment, it was evident that the radius of the flooded area increased as the supply rate increased for soils of Gumi and Sangju, however, there was an inverse correlation between hydraulic conductivity and the rate of increase in the radius. Results also showed that the time required to cover the entire soil surface with water, in other words, the time to reach the maximum flood radius from the commencement of the water emission was as short as 3 to 4 minutes for all the soils. Also, the average infiltration rate for the entire flood period did not change significantly when the rest period was shorter than an hour.
Keywords
Floodplain filtration; Water supply; Design factors; Hydraulic conductivity; Rest/flood;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 최명호, 김경수, 김승현,“ 우리나라에서 홍수터여과의 가능성에 대한기초조사,”대한환경공학회지, 31(1), 70-78(2009)
2 Jong-Bae Chung., Seung-Hyun Kim., Byeong-Ryong Jeong., and Young-Deuk Lee.,“ Removal of organic matter and nitrogen from river water in a model floodplain filtration,”J. Environ. Qual., 33, 1017-1023(2004)   DOI   ScienceOn
3 Pescod, M. B., “Wastewater treatment and use in agriculture- FAO irrigation and drainage paper 47, FAO, Rome, (1992)
4 Fetter, C. W., “Applied Hydrgeology,”Macmillan College Publishing Company, Inc., New York, USA, (1994)
5 Linsley, R. K., and Franzini, J. B., “ Water-Resources Engineering,”3rd ed., McGraw-Hill, Singapore, (1979)
6 Bouwer, H., Rice, R. C., and Escarceca, E. D., “High-rate land treatment I : Infiltration and hydraulic aspects of the Flushing Meadows project,”J. WPCF, 46, (1974)
7 김승현“, 우리나라에서 강변여과와 하상여과의 비교,”대한환경공학회지, 29(10), 1154-1162(2007)
8 Kanarek, A., and Michail, M., “Groundwater recharge with municipal effluent: DAN region reclamation project, Israel,” Water Sci. Technol., 34, (1996)
9 환경관리공단,“ 하천자연정화 시설부지 및 수질현황 조사서,”(1999)
10 김승현, 정장식“, 하상여과를 이용한 금호강 수질개선연구,”환경연구영남대학교환경문제연구소논문집, 18(2), (1999)
11 Simunek, J., Sejna, M., Saito, H., Sakai, M., and van Genuchten, M.Th.,“ The HYDRUS-1D Software Package for Simulating the One-Dimensional Movement of Water, Heat and Multiple Solutes in Variably Saturated Media,” Department of Environmental Sciences, University of California at Riverside, California, U.S.A., (2008)
12 Bouwer, H., Rice, R. C., Lance, J. C., and Gilbert, R. G., “Rapid-infiltration research at Flushing Meadows Project, Arizona,”J. WPCF, 52, (1980)
13 Skaggs, R. W., and Nassehzdeh-Rabrizi, A.,“ Drainage Systems for Land Treatment of Wastewater,”J. Irrigation and Drainage, 108, (1982)
14 Todd, D. K., “Ground Water Hydrology,”John Wiley & Sons, Inc., (1959)