Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Availability Evaluation of TOC as the Environmental Standard - Survey of Lakes in Nakdong River Basin -

환경기준으로서의 TOC에 대한 활용성 평가 - 낙동강수계 호소를 대상으로 -

  • Choi, Byoungwoo (Department of Environmental Engineering, Andong National University) ;
  • Kang, Meea (Department of Environmental Engineering, Andong National University)
  • Received : 2018.04.02
  • Accepted : 2018.05.17
  • Published : 2018.05.31
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Abstract

The utilization of TOC(Total organic carbon), a new environmental standard, was evaluated for 30 lakes in the Nakdong River Basin, which is used for drinking and agricultural usage. The active use of water resources begins with securing satisfactory water quality. Since this allows people and nature to maintain stability of quality, water quality standards are being tightened to ensure good water quality. In order to improve the pollution level of organic matter in lakes in the living environment, it is important to use the appropriate organic substance index. The relationship between the newly introduced TOC and the existing COD(Chemical oxygen demand) in the targeted lake was positively correlated with the possibility of replacing the TOC with COD. However, the environmental grade standard using TOC is better than the environmental grade standard using COD, so it has the same effect as that of the grade of water quality using TOC as an organic substance factor. This indicates the limitation of TOC to directly replace existing COD when trying to determine or improve the quality level using organic indicators of lakes. Therefore, in order to secure the qualitative safety of the lake, it is required to strengthen environmental standards of TOC in terms of water quality grade. In addition, the correlation between TOC and COD shows a great difference depending on the utilization characteristics of the lake. This requires clear scientific identification, and it requires continuous monitoring of COD that has been used to accumulate indicators of lake organic matter.

상수용, 농업용 등으로 사용되고 있는 낙동강수계의 30개소 호소를 대상으로 새로운 환경기준인 TOC(총유기탄소, Total organic carbon)의 활용성을 평가하였다. 적극적인 수자원의 이용은 양호한 수질을 확보하는 것으로 시작된다. 이는 사람과 자연에게 질적 안정성을 유지할 수 있게 하므로 양호한 수질 확보를 위해 수질기준은 보다 엄격하게 강화되고 있다. 생활환경 중 호소의 유기물질 오염수준을 개선하는 데에는 적절한 유기물질 지표의 활용성이 중요하다. 대상호소에서는 새로 도입된 TOC와 기존에 사용하던 COD(화학적산소요구량, Chemical oxygen demand)간의 상호성이 양의 관계로 나타났는데 이는 TOC의 COD 대체가능성을 의미한다. 그러나 TOC를 활용한 환경기준의 등급이 COD를 활용한 환경기준의 등급보다 더 양호한 것으로 나타나 TOC를 유기물질인자로 이용한 수질등급 수준이 완화된 것과 동일한 효과를 지니게 된다. 이것은 호소의 유기물질 지표를 활용하여 질적 수준을 판단하거나 개선하고자 할 때에 기존의 COD에 직접적으로 대체하기에 TOC의 한계를 나타내는 것이다. 따라서 호소의 질적 안전성을 확보하기 위해서는 수질등급 면에서 TOC의 환경기준 강화가 요구된다. 또 호소의 이용특성에 따라 TOC와 COD간의 상관성에도 큰 차이를 나타내고 있다. 이에 대한 명확한 과학적 규명이 필요하며, 이를 위해 호소의 유기물질 지표의 축적에 기존에 사용하던 COD의 지속적인 모니터링이 요구된다.

Keywords

References

  1. Busan metropolitan city institute of health & environmental (2013), Correlation analysis between TOC and the organic matter index of Busan streams, The annual report of Busan metropolitan city institute of health & environmental.
  2. Choi, B, Kang, M and Sohn, H (2011), Lake's function on control of refractory dissolved organic matter caused by upstream rivers to Andong lake and JinYang lake, J. of wetlands society, 13(2), pp. 343-353). [UCI : http://uci.or.kr/G704-002159.2011.13.2.013]
  3. Choi, I, Kim, J, Im, J, Park, T, Kim, S, Son, D, Huh, I, Rhew, D and Yu, S (2015), Application of TOC standards for managing refractory organic compounds in industrial wastewater, J. of Korean Society on Water Environment, 31(1), pp. 29-34. [DOI : http://dx.doi.org/10.15681/KSWE.2015.31.1.29]
  4. Choi, J and Han, D (2011), Development of water quality standard for TOC as organic matter index, Seoul Studies, 12(3), pp. 173-184. [UCI : http://uci.or.kr/G704-001108.2011.12.3.010]
  5. Choi, K, Kim, B, Park, J, Kim, Y and Jun, M (2004), Temporal and vertical variability in the relationship among organic matter indices in a deep reservoir ecosystem, Lake and Reservoir Management, 20(2), pp. 130-140. [DOI : https://doi.org/10.1080/07438140409 354357]
  6. Kang, M (2014), Characteristics and Effective Usage of Organic Indexes in Water Environments -Lakes in Nakdong River Basin-, J. of wetlands society, 16(1), pp. 153-160. [UCI : http://uci.or.kr/G704-002159.2014. 16.1.003] https://doi.org/10.17663/JWR.2014.16.1.153
  7. Kim, B, Jung, S, Jang, C and Kim, J (2007), Comparison of BOD, COD and TOC as the Indicator of Organic Matter Pollution in Streams and Reservoirs of Korea, J. of Korean Society of Environmental Engineers, 29(6), pp. 640-643. [DOI : http://lod.ndsl.kr/resource/NJOU000 25569_29_6]
  8. Kim, E, Yoon, J, Lee, J and Choi, H (2012), Analysis of Long-Term Trends in Lake Water Quality Observations, J. Korean Soc. Hazard Mitig, 12(1), pp. 231-238. [UCI : http://uci.or.kr/G704-001845.2012. 12.1.011] https://doi.org/10.9798/KOSHAM.2012.12.1.231
  9. Kim, H, Hong, J, Sung, J, Choi, K and Park, J (2013), Comparison of Organic Matter Distribution in Major Tributaries of the Nakdong River, J. of Korean Society on Water Quality, 29(5), pp. 618-624. [UCI : http://uci.or.kr/G704-000646.2013.29.5.005]
  10. Kim, J, 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, J. of Korean Society on Water Quality, 23(1), pp. 72-80. [UCI : http://uci.or.kr/G704-000646.2007.23.1.003]
  11. Lee, U, Kim, B and Choi, K (2001), Characteristics of dissolved organic carbon in three layers of a deep reservoir, Lake Soyang, Korea. International Review of Hydrobiology, 86(1), pp. 63-76. [DOI : https://doi.org/10.1002/1522-2632(200101)86:1<63::AID-IROH63>3.0.CO;2-X]
  12. Meili, M (1992) Sources, concentrations and characteristics of organic matter in softwater lakes and streams of the swedish forest region, Hydrobiologia, 229, pp. 23-41. [DOI : https://doi.org/10.1007/978-94-011-2474-4_2]
  13. Ministry of Environment(MOE). (2008). A Study on the Evaluation and Management of Organic Materials in Public waters.
  14. Ministry of Environment(MOE). (2009). Environmental Survey Guide for Lakes.
  15. Ministry of Environment(MOE). (2012). Water Pollution Test Standards.
  16. Ministry of Justice(MOJ). (2018). Basic environment law.
  17. National institute of environmental research (2011), The Applicability of Coliforms as a Fresh Water Quality Standard, Report of NIER, Korea.
  18. Thurman, E (1985) Organic geochemistry of natural water, Dordrecht, Netherland.
  19. Visco, G, Campanella, L and Nobili, V (2005) Organic carbons and TOC in waters: an overview of the international norm for its measurements, Microchemical Journal, 79, pp. 185-191. [DOI : https://doi.org/10.1016/j.microc. 2004.10.018]
  20. Water information system(WIS)(2018). http://water.nier.go.kr/
  21. Yi, SB (2017). Quality evaluation of Nakdong river using different organic indexs, Master's Thesis, Andong national university, Andong, Korea. [Korean Literature]