DOI QR코드

DOI QR Code

The effect of Combined Sewer Overflows on river's water quality

  • Bae, Hun Kyun (Department of Global Environment, School of Environment, Keimyung University)
  • Received : 2019.10.31
  • Accepted : 2019.12.23
  • Published : 2020.01.25

Abstract

The effect of Combined Sewer Overflow on the river system was investigated throughout three preliminary field tests and three main ones. As a result of the study, Combined Sewer Overflow did not affect water qualities on the main stream since the concentration of the main stream did not significantly changed during rainfall events although the water quality of tributaries has rapidly deteriorated due to the influence of the Combined Sewer Overflow during rainfall events. The main cause of the result is that the flow rate of the tributaries is considerably lower than that of the main stream, so that the tributaries with deteriorated water quality during rainfall events did not significantly affect the quality of the actual main stream. Therefore, the water quality of the Kumho River is more affected by the wastewater treatment facilities that discharges water continuously to the main stream than pollutants from non-point pollution sources during rainfall events. As a result, managements for discharges from wastewater treatment facilities should be strengthened in order to improve the water quality of the river.

Keywords

References

  1. Bae, H. (2007), "Modeling approaches to predict conditions of water quality using physical, chemical, and hydrological data focused on biological contaminations", Ph.D. Dissertation; University of California, Irvine, U.S.A.
  2. Donovan, E., Unice, K., Roberts, J., Harris, M. and Finley, B. (2008), "Risk of gastrointestinal disease associated with exposure to pathogens in the water of the Lower Passaic River", Appl. Environ. Microbiol., 74(4), 994-1003. https://doi.org/10.1128/AEM.00601-07.
  3. Kim, J. and Ko, I.H. (2006), "Modeling of Discharge Characteristics of Combined Sewer Overflows(CSOs) from a Small Urban Watershed in Daejeon City", J. Korean Soc. Enviro. Eng., 26(3), 654-660.
  4. Kistemann, T., Rind, E., Koch, C., Cla$\ss$en, T., Lengen, C., Exner, M. and Rechenburg, A. (2012), "Effect of sewage treatment plants and diffuse pollution on the occurrence of protozoal parasites in the course of a small river", Int. J. Hyg. Envorin. Health, 215(6), 577-583. https://doi.org/10.1016/j.ijheh.2011.12.008.
  5. Korea Ministry of Environment Daegu Branch (2000), "Kumho River - Yesterday, today and tomorrow", Daegu, Korea.
  6. Korea Ministry of Environment Daegu Branch (2005), "The living-breathing Kumho River", Daegu, Korea.
  7. Lee, D.J. (2003), "Preliminary Investigations on the Developing CSOs Abatement Goals; Comparison of CSOs and Storm Sewer Discharge Loads", J. Korean Soc. Enviro. Eng., 25(11), 1420-1426.
  8. Lim, J.S., Kwon, C.J., Kim, D.Y., Lee, K.C. (2013), "Control of the Sediment in a Combined Sewer Using a Separation Wall", Envi. Eng. Res. 18(2), 71-75 https://doi.org/10.4491/eer.2013.18.2.071
  9. MOE (Ministry of Environment) (2008), "A study on policy direction of assessment and management in the public watershed", Seoul, Korea.
  10. MOE (Ministry of Environment) (2013), "Korean Standard Methods for water quality", Seoul, Korea.
  11. Moore, L. and Thornton, K. (1988), "Lake and Reservoir restoration guidance manual", Washington, D.C., U.S. Environmental Protection Agency.
  12. NIER (National Institute of Environmental Research) (2009), "A study on nutrient man agement for discharge source and water shed management", Seoul, Korea.
  13. Noble, R., Moore, D., Leecaster, M,, McGee, C., Weisberg, S. (2003), "Comparison of total coliform, fecal coliform, and enterococcus bacterial indicator response for recreational water quality testing", Water Res., 37(7), 1637-1643. https://doi.org/10.1016/S0043-1354(02)00496-7.
  14. Ottoson, J., Hansen, A., Bjorlenius, B., Norder, H., Stenstrom, T. (2006), "Removal of viruses, parasitic protozoa and microbial indicators in conventional and membrane processes in a wastewater pilot plant", Water Res., 40(7), 1449-1457. https://doi.org/10.1016/j.watres.2006.01.039.
  15. RIMGIS (River Management Geographic Information Systme) (2017), www.river.go.kr.
  16. Rizzo, A., Bresciani, R., Masi, F., Boano, F., Revelli, R., Ridolfi, L. (2018), "Flood reduction as an ecosystem service of constructed wetlands for combined sewer overflow", J. of Hydrology, 560, 150-159. https://doi.org/10.1016/j.jhydrol.2018.03.020.
  17. Seo, J., Cho, Y., Yu, M., Ahn, S., Kim, H. (2005), "Prediction of combined sewer overflows characterized by runoff", Envi. Eng. Res. 10(2), 62-70. https://doi.org/10.4491/eer.2005.10.2.062.
  18. Snodgrass, W., Dewey, R., D'Andrea, M., Bishop, R., Lei, J. (2018), "Forecasting receiving water response to alternative control levels for combined sewer overflows discharging to Toronto's Inner Harbour", J. of Aquatic Ecosystem Health & Management, 21(3), 245-254. https://doi.org/10.1080/14634988.2018.1507528.
  19. Tchobanoglous, G., Burton, F., Stensel, D. (2003), "Wastewater Engineering: Treatment and Reuse", 4th Ed., Metcalf & Eddy Inc., McGraw-Hill Education.
  20. Tondera, K., Klaer, K., Roder, S., Brueckner, I., Strathmann, M., Kistemann, T., Schreiber, C., Pinnekamp, J. (2016), "Developing an easy-to-apply model for identifying relevant pathogen pathways into surface waters used for recreational purposes", Int. J. Hyg. Envorin. Health, 219(7PtB), 662-670. https://doi.org/10.1016/j.ijheh.2015.11.005.
  21. Whitlock, J. and Jones, D. (2002), "Harwood, Identification of sources of fecal coliforms in an urban watershed using antibiotic resistance analysis", Water Res., 36(17), 4273-4282. https://doi.org/10.1016/S0043-1354(02)00139-2.
  22. WIS (Water Information System) (2017), water.nier.go.kr.
  23. Xu, Z., Wu, J., Li, H., Chen, Y., Xu, J., Xiong, L., Zhang, J. (2018), "Characterizing heavy metals in combined sewer overflows and its influence on microbial diversity", Science of The Total Environment, 625, 1272-1282. https://doi.org/10.1016/j.scitotenv.2017.12.338.
  24. Yang, D., Bae, H. (2012), "The effect of branches on Kumho River's water Quality", J. of the Environmental Sciences, 21(10), 1245-1253. https://doi.org/10.5322/JES.2012.21.10.1245.