Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
권호 표지
DOI QR코드

DOI QR Code

The Distribution Characteristics of Organic Matters in the Contaminated Tributaries of Han River Region

한강권역 우심지류 하천의 유기물 분포 특성

  • Received : 2018.08.09
  • Accepted : 2018.09.11
  • Published : 2018.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this study was to understand distribution characteristics of organic matters through concentration of $BOD_5$, $COD_{Mn}$ and TOC in 31 streams in Han River region, and to establish the relationship among organic matter concentration, and discharge load and flow rate. Concentration of $BOD_5$ and TOC in 22 streams were above IV grade except 9, and the average 80.9 % of total organic matter (by TOC) accounted for dissolved organic type. Correlation among organic matter parameters were higher ($r^2$ > 0.78) and the relationship between TOC and $COD_{Mn}$ concentration was higher than $BOD_5$. Ratio of biodegradable organic matter/total organic matter in the 31 streams was estimated at 41.4 % with $BOD_5$ oxidation rate, and 78.0 % with $BOD_5/COD_{Mn}$ concentration ratio. Ratio of $NBOD/BOD_5$ concentration in four sites with $BOD_5/COD_{Mn}$ concentration ratio exceeding 1 ranged from 54.5 % ~ 79.3 %. Among 979 flow rate data measured at 31 streams, 87 % of measured data was below 0.1 cms and increased water pollution under low flow conditions. Correlation between $BOD_5$ concentration and $BOD_5$ discharge load in the watershed was low, and it was revealed that several streams have more $BOD_5$ delivery load than $BOD_5$ discharge load. Results suggest that many biodegradable forms of organic matter are being introduced into the stream from pollutant sources in the watershed.

Keywords

References

  1. Cho, B., Choi, J., Yi, S., and Kim, Y. (2012). Selection priority of tributary catchments for improving water quality using stream grouping method, Journal of Korean Society on Water Environment, 28(1), 18-25. [Korean Literature]
  2. Gil, K., Kim, T., and Jung, M. S. (2011). Runoff characteristics of refractory organic matters from South-Han river watershed during rainfall event and dry season, Journal of Korean Society on Water Environment, 27(3), 306-313. [Korean Literature]
  3. Han River Watershed Management Committee (HRWMC). (2017). Monitoring water quality and quantity of tributaries in the Han river basin, Han River Watershed Management Committee, 17-27. [Korean Literature]
  4. Han River Watershed Management Committee (HRWMC). (2018). Water quality monitoring in Kyongancheon, Guseockmalcheon and Jukdangcheon (II), Han River Watershed Management Committee, 250-254. [Korean Literature]
  5. Jeong, W., Kim, Y., Kim, H., Moon, E., Park, S., Yi, S., Jeong, S., Cho, B., and Choi, J. (2011). Study of $BOD_5$ variation patterns with flow regime alteration in the tributaries, Journal of Korean Society on Water Environment, 27(4), 499-508. [Korean Literature]
  6. Jung, K. Y., Kim, G, H., Lee, J, W., Lee, I., Yoon, J. S., Lee, K. L., and Im, T. H. (2013). Selection of priority management target tributary for effective watershed management in Nam-river mid-watershed, Journal of Korean Society on Water Environment, 29(4), 514-522. [Korean Literature]
  7. Jung, S., Kim, K., Seo, D., Kim, J., and Lim, B. (2013). Evaluation of water quality characteristics and grade classification of Yeongsan river tributaries, Journal of Korean Society on Water Environment, 29(4), 504-513. [Korean Literature]
  8. Kim, B., Jung, S., Jang, C., and Kim, J. K. (2007). Comparison of BOD, COD and TOC as the indicator of organic matter pollution in streams and reservoirs of Korea, Journal of Korean Society Environmental Engineers, 29(6), 640-643. [Korean Literature]
  9. Kim, H. S., Hong, J. J., Seong, J. U., Choi, K. S., and Park, J. C. (2013). Comparison of organic matter distribution in major tributaries of the Nakdong river, Journal of Korean Society on Water Environment, 29(5), 618-624. [Korean Literature]
  10. Kim, H. S., Kim, S. Y., Park, J., and Han, M. (2017). The fractionation characteristics of organic matter In pollution sources and river, Journal of Korean Society on Water Environment, 34(5), 580-586. [Korean Literature]
  11. Kim, J. K., Shin, M., Jang, C., Jung, S., and Kim, B. (2007). Comparison of TOC and DOC distribution and the oxidation efficiency of BOD and COD in several reservoirs and rivers in the Han river system, Journal of Korean Society on Water Environment, 23(1), 72-80. [Korean Literature]
  12. Kim, T. and Gil, K. (2011). Runoff characteristics of refractory organic matters from Kyongan river watershed during rainfall event and dry season, Journal of Korean Society on Water Environment, 27(4), 397-404. [Korean Literature]
  13. Lee, B., Lee, T. H., and Hur, J. (2011). Development of estimation indices for refractory organic matter in the Hanriver basin using organic matter parameters and spectroscopic characteristics, Journal of Korean Society on Water Environment, 27(5), 625-633. [Korean Literature]
  14. Lee, J., Kim, J., Lee, J. K., Kang, L., and Kim, S. (2012). Current status of refractory dissolved organic carbon in the Nakdong river basin, Journal of Korean Society on Water Environment, 28(4), 538-550. [Korean Literature]
  15. Ministry of Environment (ME). (2015). The method of water quality pollution process test, No. 2015-99, Notification of the Ministry of Environment. [Korean Literature]
  16. Na, S., Lim, T., Yun, J., Kwon, H., and Cheon, S. (2015). Flow rate-water quality characteristics of tributaries and a grouping method for tributary management in Nakdong river, Journal of Wetlands Research, 17(4), 380-390. [Korean Literature] https://doi.org/10.17663/JWR.2015.17.4.380
  17. National Institute of Environmental Research (NIER). (2001). Study on the conversion indicator of organic pollutant for wastewater effluent, Ministry of Environment. [Korean Literature]
  18. National Institute of Environmental Research (NIER). (2014). The technical guideline for total water pollutant load management system, 11-1480523-001918-01, National Institute of Environmental Research. [Korean Literature]
  19. Park, S., Kim, H., Cho, B., Moon, E., and Choi, J. (2016). Watershed management plan through water quality monitoring for main branches of 4 water systems in Chungcheonhnamdo, Journal of Korean Society on Water Environment, 32(2), 163-172. [Korean Literature] https://doi.org/10.15681/KSWE.2016.32.2.163
  20. Son, Y., Na, S., Im, T., and Kim, S. H. (2017). Water quality analysis in Nakdong river tributaries using 2012-2016 monitoring data, Journal of Korean Society on Water Environment, 33(6), 680-688. [Korean Literature] https://doi.org/10.15681/KSWE.2017.33.6.680
  21. Sustainable Water Resource Research Center (SWRRC). (2004). Streamflow measurement manual, Technical Report 2004-1, Sustainable Water Resource Research Center. [Korean Literature]
  22. Strahler, A. N. (1952). Hypsometric analysis of erosional topography, Bulletin of the geological society of America, 63, 1117-1142. https://doi.org/10.1130/0016-7606(1952)63[1117:HAAOET]2.0.CO;2