Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Development of Up- and Down-flow Constructed Wetland for Advanced Wastewater Treatment in Rural Communities

소규모 오수발생지역의 고도처리시설을 위한 상.하 흐름형 인공습지 개발

  • 김형중 (한국농촌공사 농어촌연구원) ;
  • 윤춘경 (건국대학교 생명환경과학대학 환경과학과) ;
  • 권태영 (㈜자연과환경) ;
  • 정광욱 (건국대학교 생명환경과학대학 환경과학과)
  • Published : 2006.11.30
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Abstract

The feasibility of the up- and down-flow constructed wetland was examined fur rural wastewater treatment in Korea. Many constructed wetland process was suffered from substrate clogging and high plant stresses because of long term operation. The up- and down-flow constructed wetland process used porous granule materials (charcoal pumice : SSR=10:20:70) for promoting intake rate of nutrient to plant, and especially flow type was designed continuously repeating from up-flow to down-flow. $BOD_5$ and SS was removed effectively by the process with the average removal rate being about 75% respectively. The wetland process was effective in treating nutrient as well as organic pollutant. Removal of TN and TP were more effective than other wetland system and mean effluent concentrations were approximately 7.5 and $0.4mg\;L^{-1}$ which satisfied the water quality standard for WWTPs. The treatment system did not experience any clogging or accumulations of pollutants and reduction of treatment efficiency during winter period because constructed polycarbonate glass structure prevented temperature drop. Considering stable performance and effective removal of pollutant in wastewater, low maintenance, and cost-effectiveness, the up- and down-flow constructed wetland was thought to be an effective and feasible alternative in rural area.

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References

  1. APHA. 1998. Standard Methods for the Examination of Water and Wastewater(19th edition.) American Public Health Association, Washington, D.C., USA
  2. Brix, H., 1993, Wastewater Treatment in Constructed Wetlands: System Design, Removal Processes, and Treatment Performance, Constructed Wetlands for Water Quality Improvement, Moshiri G. A.(eds.), Lewis Publishers, Florida. 9-22
  3. Chung, D. Y,. 1999. Development of an environrnentally friendly sewage disposal model for agricultural and fishing village areas. Journal Korean Environmental Research and Revegetation Technology 2(1): 10-19. (in Korean)
  4. Chung, D. Y., 2004, A study on sewage plant with water plants and gravels for treatment of sewage generated in farming and fishing village. The Society of Korea Practical Arts Education. 10(1): 222-233. (in Korean)
  5. Corbitt, R. A., and P. T. Bowen. 1994. Constructed Wetlands for Wastewater Treatment. Pages 221-241. In D.M. Kent (ed.). Applied Wetlands Science and Technology. Lewis Publishers, CRC Press. Boca Raton. FL. 436pp
  6. Cooper, P. F., 1999. A review of the design and performance of vertical flow and hybrid reed bed treatment systems. Water Science and Technology 40(3), 1-9
  7. Crites, R. W., Dombeck, G. D., Waston, R C. and C. R. Williams. 1997. Removal of metals and ammonia in constructed wetlands, Water Environment Research 69(2): 132-135 https://doi.org/10.2175/106143097X125272
  8. Ham, J. H., C. G. Yoon, J. H. Jeon and M. H. Kim. 2002. Pond system for further polishing of constructed wetland effluent during winter season. Journal of the Korean Society of Agricultural Engineers 44(4): 139-148. (in Korean)
  9. Headley, T. R., E. Herity and L. Davison. 2005. Treatment at different depths and vertical mixing within a 1-m deep horizontal subsurface-flow wetland. Ecological Engineering 25, 567-582 https://doi.org/10.1016/j.ecoleng.2005.07.012
  10. Johansson, L., 1997. The use of leca (Light expanded clay aggregates) for the removal of phosphorus from wastewater. Water Science and Technology 35(5): 87 -93
  11. Kadlec, R. H. and R. L. Knight. 1996. Treatment wetlands. 415-442
  12. Katrin, V. and K. Sabine. 1997. N & COD Removal in vertical flow system. Water Science and Technology 35(5): 79-85
  13. Kwun, T. Y., 2006. Development of natural wastewater treatment system for decentralized regions and rural communities. PhD thesis, Department of Rural Engineering, University of Konkuk. (in Korean)
  14. Metcalf & Eddy, 1991, Wastewater Engineering, McGrew-Hill Book Company
  15. Mitsch, W. J., and J. G. Gosselink. 2000. Wetlands 3rd ed., John Wiley & Sons, Inc., N.Y
  16. Platzer, C., 1999. Design recommendations for subsurface flow constructed wetlands for nitrification and denitrification. Water Science and Technology 40(3): 257-263 https://doi.org/10.1016/S0273-1223(99)00420-5
  17. Reed, S. C., Crites, R. W. and E. J. Middlebrooks. 1995. Natural systems for waste management and treatment. McGraw-Hill. Inc., Washington DC
  18. Sakadevan, K. and H. J. Bavor. 1999. Nutrient removal mechanism in constructed wetlands and sustainable water management. Water Science and Technology 40(2): 121-128
  19. Tanner. C. C., James P., Sukisa, S. and M. P. Upsdell, 1998. Organic matter accumulation during maturation of gravel-bed constructed wetlands treating farm dairy wastewater. Water Resource 32(10): 3046-3054
  20. Vyrnazal, J., 1996. Constructed wetlands for wastewater treatment in the Czech Republic the first 5 years experience. Water Science and Technology 34(11): 159-164
  21. Yang, H. M.. 2003a, Nitrogen removal rate of free-water-surface treatment wetland system constructed on floodplain during its initial operating stage. Journal Korean Environmental Research and Revegetation Technology 6(6): 41-48. (in Korean)
  22. Yang, H. M., 2003b, Total phosphorus removal rate of a subsurface-flow wetland system constructed on floodplain during its initial operating stage, Journal Korean Environmental Research and Revegetation Technology 6(6): 49-55. (in Korean)
  23. Yoon, C. G., S. K. Kwun. and J. H. Ham. 1999. Wetland performance for wastewater treatment in growing and winter seasons. Joural of the Korean Society of Agricultural Engineers 41(4): 37-46. (in Korean)