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http://dx.doi.org/10.17820/eri.2017.4.3.142

Evaluation of the Reducing Efficiency of Vertical and Horizontal Wetland Using Intermittent Flow System  

Joo, Kwang Jin (Department of Environmental Science and Engineering, Kyung Hee University)
Lee, Dong Min (Department of Environmental Science and Engineering, Kyung Hee University)
Kim, Ki Jung (Cheong-Ho Environment. Development Co.Ltd)
Cho, Yong Chul (Han-River Environment Research Center, National Institute of Environmental Research)
Jang, Gwang Hyeon (Department of Environmental Science and Engineering, Kyung Hee University)
Choi, I Song (Department of Environmental Science and Engineering, Kyung Hee University)
Oh, Jong Min (Department of Environmental Science and Engineering, Kyung Hee University)
Publication Information
Ecology and Resilient Infrastructure / v.4, no.3, 2017 , pp. 142-148 More about this Journal
Abstract
Nitrogen and phosphorus are key factors in causing eutrophication of water body. In this study, ceramics media was selected to increase the removal efficiency of nitrogen and phosphorus. We designed vertical, horizontal flow constructed wetlands to create aerobic and anaerobic flow conditions by using the media, then proceeded to performance evaluations after acrylic reactors were produced. In the case of vertical and horizontal flow constructed wetlands, we measured oxygen concentrations to evaluate aerobic and anaerobic conditions. we got the result of 2.7 mg/L in the aerobic condition, N.D in the anaerobic condition respectively, which suited our purpose. The result of the combined vertical and horizontal flow condition showed that the removal efficiency of SS was 94%, 91%, 61% at 140 min, 80 min, 60 min of running times, respectively, and the removal efficiency of T-P was 84%, 71%, 63% during each running time. In case of T-N, the removal efficiency was 63%, 49%, 42% during each running time. We found that the reactor exerted better removal efficiency when in the short time compared to 12 - 24 hr residence time of existing wetlands. In this study, we conducted experiments to explore functional effects after applying combined vertical and horizontal flow methods in the field. Further study will be carried out to identify its mechanism and administrative perspective.
Keywords
Constructed Wetland; Vertical Subsurface Flow; Horizontal Subsurface Flow; Intermittent Flow; Ceramics Media;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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