Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
권호 표지
DOI QR코드

DOI QR Code

Water Quality Improvement Plans based on the Analysis of Pollutant Discharge Characteristics and Water Quality Modelling of Seokmun Reservoir Watershed

석문호 유역 오염물질 배출특성 분석 및 수질모델링에 기초한 수질개선방안 연구

  • Choi, Moojin (Department of Civil and Environmental Engineering, Kongju National University) ;
  • Jung, Woohyeuk (Department of Civil and Environmental Engineering, Kongju National University) ;
  • Choi, Jaehun (Human Planet) ;
  • Kim, Youngil (Chungnam Institute)
  • Received : 2017.09.08
  • Accepted : 2017.10.17
  • Published : 2017.10.31
⟨ Previous Next ⟩

Abstract

For effective improvement of water quality in Seokmun reservoir, this study implemented various analyses including the tributary water quality and flowrate monitoring, contamination of sediment, investigation of pollution source, selection of priority management target tributary by stream grouping method. The COD concentration of the majority of tributaries in Seokmun reservoir watershed was relatively higher than BOD concentration. The concentration of water pollutants regardless of water quality parameters in Yeokcheon, Dangjincheon, Sigokcheon, Baekseokcheon, small stream in Jinkwanri and Janghangri were higher than the other tributaries. The pollution sources in the Seokmun reservoir watershed were mostly distributed in the population, livestock, and industry. The pollutants, which located in Yeokcheon, Dangjincheon, Baekseokcheon, and small stream in Janghangri selected as priority management target tributary, should be preferentially reduced for improving the water quality in Seokmun reservoir. As the evaluation results of water quality in Seokmun reservoir for the effect of water quality improvement according to various scenarios using water quality model, it was found that the water quality in Seokmun reservoir due to the construction of a wastewater treatment plant for management of pollutants in the watershed would be satisfied the class V of water environment standard in reservoir.

석문호 수질을 가장 효율적으로 개선하기 위한 최적의 방안을 마련하기 위해 본 연구에서는 지류하천의 수질 및 유량조사, 퇴적물 조사, 오염원 조사, 하천그룹화를 통한 중점관리 대상유역 선정을 포함한 다양한 분석을 수행하였다. 석문호 유역의 주요 지류하천은 대부분 BOD농도는 낮은 반면 COD농도는 높은 경향을 보였으며, 역천, 당진천, 시곡천, 백석천, 진관소하천, 장항소하천 등은 수질항목에 관계없이 수질농도가 높은 경향을 보였다. 석문호 유역 내 오염원은 생활계, 축산계 및 산업계가 대부분으로 지역에 따라 다양하게 분포하는 것으로 조사되었다. 석문호 수질개선을 위해 중점관리 대상하천으로 선정된 당진천, 역천, 백석천, 장항소하천 유역 내 위치하고 있는 오염원의 우선적인 저감이 필요한 것으로 판단된다. 석문호 수질개선을 위한 다양한 시나리오별 수질개선효과를 수질모델을 이용하여 정량적으로 평가한 결과, 유역 내 오염물질 배출량 관리를 위해 공공하수처리시설을 신설 및 증설만 하여도 호소 수질 V등급을 만족하는 것으로 나타났다.

Keywords

Acknowledgement

Grant : 석문호 수질개선방안 연구

Supported by : 충남녹색환경지원센터

References

  1. Kwon, Y. S., Bae, M. J., Kim, J. S., Kim, Y, J., Kim, B. H. and Park, Y. S., "Characterizing changes of water quality and relationships with environmental factors in the selected korean reservoirs," Korean J. Ecol. and Environ., 47(3), 146-159(2014). https://doi.org/10.11614/KSL.2014.47.3.146
  2. Ministry of Environment, A Study on the establishment of fundamental plan and designation of priority management reservoir(2014).
  3. Yesan-gun, Fundamental plan for water quality establishment of Yedang reservoir(2013).
  4. Song, M. Y., Jo, E. H. and Lim, D. H., Current status & policy issues on agricultural water quality management in Gyeonggi province, Gyeonggi Research Institute(2012).
  5. Song, M. Y., Lee, G. Y., Kim, G, H., Moon, H. I. and Lim, D. H., Water quality management and implementation alternatives for Wangsong reservoir, Gyeonggi Research Institute(2011).
  6. Ministry of Environment, A Study on the water quality management alternatives of reservoirs(2009).
  7. Ministry of Agriculture, Food and Rural Affairs, Enforcement rules of the act on the promotion of environmentfriendly agriculture and fisheries and the management of and support for organic foods, etc.(2015).
  8. Dangjin-si, Fundamental investigation report for water quality establishment of Seokmun reservoir(2009).
  9. Kim, E. S., Yoon, J. H., Lee, J. W. and Choi, H. I., "Analysis of Long-term trends in lake water quality observations," J. Korean Soc. Hazard. Mitig., 12(1), 231-238(2012). https://doi.org/10.9798/KOSHAM.2012.12.1.231
  10. Chung Nam Green Environment Center, A Study on the water quality improvement plans of Seokmun reservoir(2015).
  11. Ministry of Environment, Official test methods of water quality, Notification No. 2015-76(2015).
  12. Ministry of Environment, Technical guidelines of TMDL(2014).
  13. Cho, B. W., Chio, J. H., Yi, S. J. and Kim, Y. I., "Selection priority of tributary catchments for improving water quality using stream grouping method," J. Korean Soc. Water Environ., 28(1), 18-25(2012).
  14. Lim, B. S., Cho, B. W., Kim, Y. I. and Kim, D. Y., "Application of priority order selection technique for water quality improvement in stream watershed by relationship of flow and water quality," J. Korean Soc. Environ. Eng., 32(8), 802-808(2010).
  15. Jeon, J., Chung S. W., Park H. S. and Jang J. R., "Evaluation of EFDC for the simulations of water quality in Saemangeum Reservoior," J. Korean Soc. Water Environ., 27(4), 445-460(2011).
  16. Park, S. H., Moon, E. H., Chio, J. H., Cho, B. W., Kim, H. S., Jeong, W. H., Yi. S. J. and Kim, Y. I., "Analysis of distribution characteristics of flowrate and water quality in tributary at Chungcheongnam-do," J. Korean Soc. Environ. Eng., 33(10), 739-747(2011). https://doi.org/10.4491/KSEE.2011.33.10.739
  17. Jung, K. W, Yoon, C. G., Lee, I. H., Lee, S. I., Kang, S. M. and Han, J. W., "Pollutants release from sediments in estuarine reservoir," J. Korean Soc. Agric. Eng., 56(1), 1-9(2014). https://doi.org/10.5389/KSAE.2014.56.1.001
  18. National Institute of Environmental Research, The sediment pollution evaluation standard of river and reservoir, Established Rule No. 687(2015).
  19. Kim, D. W., Jang, M. J. and Han, I. S., "Determination of focused control pollutant source by analysis of pollutant delivery characteristics in unit watershed upper paldang lake," J. Korean Soc. Environ. Eng., 36(5), 367-377(2014). https://doi.org/10.4491/KSEE.2014.36.5.367
  20. Han, M. D., Son, J. Y., Ryu, J. C., Ahn, K. H. and Kim, Y. S., "The effects of pollutants into sub-basin on the water quality and loading of receiveing streams," J. Korean Soc. Environ. Eng., 36(9), 648-658(2014). https://doi.org/10.4491/KSEE.2014.36.9.648
  21. Kim, S. M., Park, Y. K., Lee, D. J. and Chung, M., "Prediction of water quality change in Saemangeum reservoir by floodgate operation at upstream," J. Korea Water Resour. Assoc., 50(6), 373-386(2017). https://doi.org/10.3741/JKWRA.2017.50.6.373

Cited by

  1. Water Quality Improvement Plans of Daeho Reservoir based on the Analysis of Watershed Characteristics and Water Quality Modelling vol.40, pp.7, 2018, https://doi.org/10.4491/KSEE.2018.40.7.267