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http://dx.doi.org/10.3741/JKWRA.2014.47.12.1135

Evaluation of Pollutant Removal Efficiency through Field Test-Bed Experiment in the Rural Small Stream  

Choi, Sun Hwa (Rural Research Institute, Korea Rural Community Corporation)
Oh, Jong Min (Department of Environmental Science and Engineering, Kyung Hee University)
Kim, Tae-Hoon (Department of Environmental Application Science, Kyung Hee University)
Publication Information
Journal of Korea Water Resources Association / v.47, no.12, 2014 , pp. 1135-1143 More about this Journal
Abstract
This study was carry out to evaluate of water purification in oxidation pond with filamentous algae mat. It is the water treatment process in the small rural streams to remove the organic materials and nutrients. We used the filamentous algae mat (FAM) which selectively predominate the filamentous algae to prevent the additional contamination by algae outflow, and we conducted a experiment on the water treatment process using the aquatic plants such as Eichhornia crassipes. The removal efficiencies (%) of water quality parameters were SS 80.9%, COD 74.6%, TN 76.8%, TP 84.4%, DTN 93.8% and DTP 98.3%, respectively. Temperature, a effect factor, was $21.8{\pm}5.9^{\circ}C$ during the operating period, according to temperature had no effect on the removal efficiencies of pollutants. Hydraulic retention time (HRT) strongly correlated with removal efficiencies (%) of SS and TP having r=0.414 (p<0.005), r=0.446 (p<0.005), respectively, and when HRT was 5day had highly removal efficiency (%) in SS and TP. TN and TP removal efficiency increased with ratio decreasing in both COD/TN and COD/TP of Influent.
Keywords
filamentous algae; oxidation pond; water quality; water treatment;
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Times Cited By KSCI : 4  (Citation Analysis)
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