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http://dx.doi.org/10.5338/KJEA.2011.30.3.304

Characteristics of Nutrient Uptake by Water Plants in Free Water Surface Constructed Wetlands for Treating Non-point Source Pollution  

Kang, Se-Won (Department of Bio-Environmental Sciences, Sunchon National University)
Seo, Dong-Cheol (Department of Bio-Environmental Sciences, Sunchon National University)
Choi, Ik-Won (Department of Bio-Environmental Sciences, Sunchon National University)
Lee, Jun-Bae (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Lim, Byung-Jin (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Park, Jong-Hwan (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Kim, Kap-Soon (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Kim, Sang-Don (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Heo, Jong-Soo (Division of Applied Life Science, Gyeongsang National University)
Cho, Ju-Sik (Department of Bio-Environmental Sciences, Sunchon National University)
Publication Information
Korean Journal of Environmental Agriculture / v.30, no.3, 2011 , pp. 304-309 More about this Journal
Abstract
BACKGROUND: Generally, water plants may play an important role in nutrients(N, P) removal in constructed wetlands(CWs). Previous studies considered nutrients uptake by water plants in various CWs for treating point source pollution. On the other hand, few studies considered nutrients uptake by water plants in free water surface(FWS) CWs for treating non-point source pollution. METHODS AND RESULTS: To investigate characteristics of nutrient uptake by water plants in FWS CWs, dry weights, nutrients content and nutrients uptake by water plants were investigated from April, 2008 to October, 2008. Dominance plants were Phragmites japonica STEUD (PHRJA), Nymphaea tetragona ANGUSTA(NTMTE), Typha orientalis PRESL(TYHOR), Phragmites communis TRINIUS(PHRCO) and Zizanis latifolia TURCZ(ZIZLA) in FWS CWs. The dry weights of water plants in August were higher in the order of TYHOR(54.27 g/plant) > PHRJA(44.30 g/plant) ${\geqq}$ PHRCO(39.60 g/plant) ${\geqq}$ ZIZLA(37.80 g/plant) ${\fallingdotseq}$ NTMTE(36.75 g/plant). The T-N and T-P contents by water plants were not significantly differences regardless of cultivation period. The maximum amount of T-N uptake by water plants in August were 773 mg/plant for PHRJA, 625 mg/plant for NTMTE, 1206 mg/plant for TYHOR, 754 mg/plant for PHRCO and 768 mg/plant for ZIZLA. The maximum amounts of T-P uptake by PHRJA, NTMTE, TYHOR, PHRCO and ZIZLA were 397, 177, 411, 261 and 229 mg/plant in August, respectively. CONCLUSION(s): The results of this study suggest that optimum water plant was Typha orientalis PRESL in free water surface constructed wetlands.
Keywords
Water Plants; Free Water Surface Constructed Wetlands; Nutrient Uptake; Non-point Source Pollution; Nitrogen; Phosphorus;
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Times Cited By KSCI : 4  (Citation Analysis)
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