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593-5 Application of Free Water Surface Constructed Wetlands for Treating Agricultural Non-point Source Pollution from Lotus (Nelumbo nucifera) Cultivation Pond under Different Fertilizer Application.

Poster Number 542

See more from this Division: S06 Soil & Water Management & Conservation
See more from this Session: Waste Management (Posters)

Monday, 6 October 2008
George R. Brown Convention Center, Exhibit Hall E

Seo Dong Cheol1, Lee Yong Chol2, Bang Seok Bae2, Oh Eun Jeong3, Kang Se Won4, Sang Gyu Lee4, Cheong Yong Hwa4, Chun Young Moon5, DeLaune Ronald D1, Jong Soo Heo6 and Cho Ju Sik4, (1)Wetland Biogeochemistry Institute, Louisiana State University, Louisiana, LA
(2)Juamdam Office, Korea Water Resources Corporation, Suncheon, Korea, Republic of (South)
(3)Water Analysis & Research Center, Korea Water Resources Corporation, Daejeon, Korea, Republic of (South)
(4)Department of Bio-Environmental Sciences, Sunchon National University, Sunchon, Korea, Republic of (South)
(5)Division of Plant Production Sciences, Sunchon National University, Sunchon, Korea, Republic of (South)
(6)Division of Applied Life Science, Gyeongsang National University, Jinju, Korea, Republic of (South)
Abstract:
The experiment was consisted of two FWS CWs systems in Lake Juam, Korea in order to investigate the treatment efficiency of agricultural non-point source pollution from lotus (Nelumbo nucifera) cultivation pond under different fertilizer application by free water surface constructed wetlands (FWS CWs). The systems were configured a lotus cultivation pond (with fertilizer application) - a dropwort bed (FWS CWs) - a reed bed (FWS CWs) for system I, and a lotus cultivation pond (without fertilizer application) - a dropwort bed (FWS CWs) - a reed bed (FWS CWs) for system II. In lotus cultivation pond with fertilizer application, removal rate of COD in dropwort and reed beds CWs were -0.6 and 13.3%, respectively. On the other hand, removal rate of COD in dropwort and reed beds CWs in lotus cultivation pond without fertilizer application were 16.8 and 26.0%, respectively. Removal rate of suspended solids (SS) in dropwort and reed beds CWs in lotus cultivation pond with fertilizer application were 5.6 and 28.6%, respectively. Removal rate of SS in dropwort and reed beds CWs in lotus cultivation pond without fertilizer application were 36.2 and 43.0%, respectively. Removal rate of total nitrogen (TN) in dropwort and reed beds CWs in lotus cultivation pond with fertilizer application were 24.1 and 29.7%, respectively. On the other hand, removal rate of TN in dropwort and reed beds CWs in lotus cultivation pond without fertilizer application were 31.5 and 36.7%, respectively. In lotus cultivation pond with fertilizer application, removal rate of total phosphorus (TP) in dropwort and reed beds CWs were -1.2 and 36.0%, respectively. In lotus cultivation pond without fertilizer application, removal rate of TP in dropwort and reed beds CWs were 23.3 and 36.5%, respectively.

See more from this Division: S06 Soil & Water Management & Conservation
See more from this Session: Waste Management (Posters)

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