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Water Treatment Characteristics by Const ucted Wetland with Different Vegetation - Open Water Arrangements  

Jang, Jeong-Ryeol (Rural Research Institute, KRC)
Choi, Sun-Hwa (Rural Research Institute, KRC)
Kwun, Soon-Kuk (College of Agriculture & Life Science, Seoul National University)
Publication Information
Journal of Korean Society on Water Environment / v.23, no.1, 2007 , pp. 122-130 More about this Journal
Abstract
This study was conducted to evaluate water treatment characteristics according to vegetated wetland(V) and open water(O) arrangements in free water surface constructed wetland. Three pilot-scale wetlands, V-V, O-V and V-O, were built and operated. $BOD_5$ was a slightly reduced at all the arrangements because the influent concentration was so low as background concentration of constructed wetlands. While T-N and T-P removal efficiency showed higher than 50% for all cases. The O-V arrangement showed the highest removal efficiency: 20% for $BOD_5$, 56% for SS, 59% for T-N and 72% for T-P. Effluent concentration of the O-V were significantly low compared with those from the V-O. O-V arrangement would be beneficial in the light of pollutant removal efficiency as well as construction cost.
Keywords
Constructed wetlands; Nonpoint sources; Water treatment;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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