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Optimum Configuration, Filter Media Depth and Wastewater Load of Small-scale Constructed Wetlands for Treating the Hydroponic Waste Solution in Greenhouses
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 Title & Authors
Optimum Configuration, Filter Media Depth and Wastewater Load of Small-scale Constructed Wetlands for Treating the Hydroponic Waste Solution in Greenhouses
Park, Woo-Young; Seo, Dong-Cheol; Lim, Jong-Sir; Park, Seong-Kyu; Cho, Ju-Sik; Heo, Jong-Soo; Yoon, Hae-Suk;
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 Abstract
To obtain optimum configuration, depth and load of constructed wetlands(CWs) for treating of hydroponic waste solution(HWS) which was produced in greenhouses, the study was conducted with 4 kinds of combined systems such as Vertical flow(VF)-Horizontal flow(HF), VF-VF, HF-VF and HF-HF CWs. In four configurations of CWs, the treatment efficiency of pollutants from HWS under depth of HF and VF beds, HWS loading and HWSs were investigated. Removal rate of pollutants under different depth of VF and HF in 2-stage hybrid CWs was in the order of 50 cm < 70 cm regardless of CWs configuration. Removal rate of pollutants under HWS loading in 2-stage hybrid CWs was in the order of >. The optimum depth and HWS loading were 70 cm and in four configurations of CWs, respectively. Using this optimum condition, for various HWSs (cucumber, paprika and strawberry HWS), removal rate of pollutants in HF-HF CWs was higher than that in HF-VF CWs. Optimum configuration of 2-stage hybrid CWs for treating hydroponic waste solution in greenhouses was found out to be HF-HF CWs. Therefore, under the optimum conditions, removal rate of BOD, COD, SS, T-N and T-P in HF-HF CWs were 84, 81, 84, 51 and 93%, respectively.
 Keywords
hydroponic waste solution;hydroponic greenhouses;2-stage hybrid;constructed wetlands;VF-HF CWs;VF-VF CWs;HF-VF CWs;HF-HF CWs;
 Language
Korean
 Cited by
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