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Journal of Environmental & Analytical Toxicology
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  • Research Article   
  • J Environ Anal Toxicol 2014, Vol 5(4): 280
  • DOI: 10.4172/2161-0525.1000280

Performance Evaluation of the Free Water Surface Constructed Wetland Treating Nonpoint Source Pollutants in the Agricultural Area

Sun Hong Lee, Sung Min Cha*, Jae Choon Lee and Jae Young Lee
Department of Environmental Measurement and Analysis, Jeollanamdo Environmental Industries Promotion Institute (JEIPI), , Jeollanam-do, 527-811, Republic of Korea
*Corresponding Author : Sung Min Cha, Department of Environmental Measurement and Analysis, Jeollanamdo Environmental Industries Promotion Institute (JEIPI), Jeollanam-do, 527-811, Republic of Korea, Tel: 82-61-430-8331, Fax: 82-61-434-9454, Email: [email protected]

Received Date: Feb 06, 2015 / Accepted Date: Feb 24, 2015 / Published Date: Feb 28, 2015

Abstract

Water quality impairment from nonpoint source pollution is one of the critical causes of surface water eutrophication in rivers and lakes surrounding agricultural area, Korea. In the Songchon Constructed Wetland (SCW) located in Yeongsan (YS) watershed which has about 1,000 km2 (total watershed area: 3,471 km2) for agricultural area, 19 times of intensive field monitoring in 2010 were conducted with various rainfall patterns and about more 1,000 water samples were measured and analyzed in field and laboratory. To identify the relationship between meteorological conditions and removal efficiency of the constructed wetland, principal component analysis (PCA) and ternary plot analysis was used for 19 field experiment data. Mean treatment performance of TSS, BOD5, COD, TN, and TP was 16.4%, 42.1%, 43.7%, 36.6%, and 57.1%, respectively, as a method of pollutant load reduction for multiple tests of storm events. PCA results revealed that rainfall depth, rainfall intensity, and antecedent dry days (ADDs) can be major components as a representative in each component. Also, ternary contour plots results showed that the treatment performance of SCW in agricultural area during storm events can be affected by three meteorological conditions. These results and phenomena can be applicable to develop the NPS discharge model and to elucidate the relationship between rainfall and storm water runoff using rain radar in a drainage area.

Keywords: Free water surface constructed wetland; Nonpoint source pollution; Ternary analysis; Principal component analysis

Citation: Lee SH, Cha SM, Lee JC, Lee JY (2015) Performance Evaluation of the Free Water Surface Constructed Wetland Treating Nonpoint Source Pollutants in the Agricultural Area. J Environ Anal Toxicol 5: 280. Doi: 10.4172/2161-0525.1000280

Copyright: © 2015 Lee SH, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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