Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Effects of Plant on Pollutant Removal Rate n Surface-flow Constructed Wetlands

자유수면형 인공습지에서 식물식재 유무가 처리효율에 미치는 영향

  • 함종화 (한국농어촌공사 농어촌연구원) ;
  • 김형중 (한국농어촌공사 농어촌연구원) ;
  • 김동환 (한국농어촌공사 농어촌연구원) ;
  • 홍대벽 (한국농어촌공사 농어촌연구원)
  • Received : 2011.10.10
  • Accepted : 2011.11.02
  • Published : 2011.11.30
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Abstract

Three different types of wetlands (unplanted wetland, reed planted wetland, cattail planted wetland) were constructed at the mouth of Seokmoon reservoir with 910 $m^2$ each to examine the effects of wetland plant on pollutant removal rate in constructed wetland, and operated for 9 years (2002~2010). Water depth of the wetland was maintained at 0.3~0.5 m, flow rate was about 40~200 $m^3$/day, and retention time was managed at about 1~5 days. There was no difference in removal rate of SS, TN, and TP between reed wetland and cattail wetland. Removal rate of SS and TN in planted wetland with reed and cattail were higher than unplanted wetland, whereas removal rate of TP in unplanted wetland was higher then planted wetland. The monthly variation of removal rate in planted wetlands was high compared with unplanted wetland. From the long term monitoring results, SS and TN removal rates of period3 (2008~2010) were higher than period1 (2002~2004) in planted wetland, whereas TP removal rate was decreased as time goes on. Overall, pollutant removal rate in constructed wetland was more influenced by existence of plants than by plant species. Although constructed wetland is operated long term period, SS, TN, and TP removal rate (SS 90 %, TN 60 %, TP 40 %) can be maintained high values.

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References

  1. Ham, J. H., C. G. Yoon, H. C. Kim, W. S. Koo, and H. B. Shin. (2005) The effect of plant coverage on the constructed wetlands performance and development and management of macrophyte communities, Korean J. Limnol., 38(3): 393-402 (in Korean).
  2. Ham, J. H., C. G. Yoon, W. S. Koo, H. C. Kim, and H. B. Shin. (2004) Analysis of field experimental data for water quality improvement of tributary stream to estuarine reservoir using constructed wetland system, Journal of the Korean Society of Agricultural Engineers, 46(5): 141-153 (in Korean). https://doi.org/10.5389/KSAE.2004.46.5.141
  3. Kadlec, R. H. and Knight, R. L. (1996) Treatment Wetlands, Lewis publisher, New York, pp. 415-442.
  4. KARICO. (2004) Design and management manual of constructed wetland for agricultural water quality improvement (in Korean).
  5. Kim, H. C., C. G. Yoon, H. Y. Um, H. J. Kim, and J. H. Ham. (2008) Analysis of treatment efficiency according to open-water in constructed wetland, Journal of Korean Society on Water Quality, 24(6): 709-717 (in Korean).
  6. Mitsch, W. J. and Gosselink, J. G. (2000) Wetlands, New York, NY: John Wiley & Sons.
  7. Reed, S. C., Crites, R. W. and Middlebrooks, E. J. (1995) Natural Systems for Waste Management(2nd ed.), McGraw-Hill, New York, pp. 173-284.
  8. Richardson, C. J. (1985) Mechanisns controlling phosphorus retention capacity in freshwater wetland, Science, 228: 1424-1428. https://doi.org/10.1126/science.228.4706.1424
  9. SSSA. (1994) Methods of soil analysis, Soil Science Society of America, Madison.