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PREDICTION OF COMBINED SEWER OVERFLOWS CHARACTERIZED BY RUNOFF 원문보기

Environmental engineering research, v.10 no.2, 2005년, pp.62 - 70  

Seo, Jeong-Mi ,  Cho, Yong-Kyun ,  Yu, Myong-Jin ,  Ahn, Seoung-Koo ,  Kim, Hyun-Ook

Abstract ▼ AI-Helper 아이콘AI-Helper

Pollution loading of Combined Sewer Overflows (CSOs) is frequently over the capacity of a wastewater treatment plant (WWTP) receiving the water. The objectives of this study are to investigate water quality of CSOs in Anmyun-ueup, Tean province and to apply Storm Water Management Model to predict fl...

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제안 방법

  • During precipitation in dry and wet weather seasons, CSOs samples were collected and analyzed to apply SWMM model and to predict flow rate and water quality of CSOs. Predictions by SWMM were compared with the observed values.
  • SWMM calibration for water quality of CSOs was performed in the same manner with the hydrograph calibaration. Four water quality parameters, nam이y QFACT(2), QFACT(3), RCOFF and WASHPO, required in SWMM [Equation (1) and (2)], were adjusted to calibrate the model for each pollutant, until the total predicted loadings matched the measured ones.
  • Predictions by SWMM were compared with the observed values. In addition, capacity of a local WWTP in the study area was evaluated based on the model prediction.
  • In this study, water quality of CSOs in Anmyun-ueup, Tean province was investigated and SWMM was applied to predict flow rate and water quality of the CSOs. Specific objectives of the study include:
  • 10 SWMM is comprised of various mo- d니les or blocks, each of which simulates different components. Specifically, the RUNOFF block was used in this study for storm water runoff simulations. Hydrological comp니tations in the RUNOFF block are based on the theory of non-linear reservoirs.
  • Samples were more frequently col- lected for the first one hour to observe first flushing. To characterize the water quality, the following parameters were analyzed; BOD5,chemical oxygen demand (COD*; by Mn- method, CODcr; by Cr-method), total nitrogen (TN), total phosphorus (TP), suspended solids (SS), total solids (TS), v 시 atile solids (VS), settling solid (setS), heterotrophic plate count (HPC), coliforms (Coli). Among the parameters, TS, SS, BOD5, CODmd, TN and TP load were compared with model prediction.

이론/모형

  • Time profile of a pollutant is computed based on the kinematical wave theory. The Horton's pervious area infiltration loss equation was used, which the infiltration capacity red니ces in an exponential fashion from the initial.
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참고문헌 (12)

  1. USEPA, Combined Sewer Overflows: Guidance for Monitoring and Modeling, Office of Wastewater Management, U.S. Environmental Protection Agency, Washington D.C., USA (1999) 

  2. Deletic A., 'The first flush load of urban surface runoff,' Water Res. 32, 2462-2470 (1998) 

    상세보기 crossref

  3. Lee, J. H. and Bang, K. W., 'Characterization of urban stormwater runoff,' Water Res. 34, 1773-1780 (2000) 

    상세보기 crossref

  4. Lee, J. H., Bang, K. W., Ketchum, L. H., Choe, J. S. and Yu, M. J., 'First flush analysis of urban storm runoff,' Sci. Total Environ., 293, 163-175 (2002) 

    상세보기 crossref

  5. Diaz-Fierros, T. F., Suarez, J., Puerta, J. and Diaz-Fierros, V. F., 'Contaminant loads of CSOs at the wastewater treatment plant of a city in NW Spain,' Urban Water., 4, 291-299 (2002) 

    상세보기 crossref

  6. Novotny, V. and Witte, J. W., 'Ascertaining aquatic ecological risks of urban stormwater discharges,' Water Res., 31(10), 2573-2585 (1997) 

    상세보기 crossref

  7. Camp Dresser & McKee and OSU, Storm Water Management Model, Version 4.4h: Users Manual (2001) 

  8. Tsihrintzis, V. A. and Hamid, R., 'Modeling and management of urban stormwater runoff quality: a review,' Water Resour. Manage., EWRA, 11(2), 137-164 (1997) 

  9. Tsihrintzis, V. A. and Hamid, R., 'Runoff quality prediction from small urban catchments using SWMM,' Hydrocarbon Process., 12, 311-329 (1998) 

    상세보기 crossref

  10. Huber, W. C., Heaney, J. P., and Cunningham, B. A., Storm Water Management Model (SWMM) Bibliopraphy, EPA 600/385/ 077 (NTIS PB86-1360411AS). EPA, Athens, Georgia, September (1985) 

  11. Huber, W. C. and Dickinson, R. E., Storm Water Management Model, Version 4: Users Manual, Environmental Research Laboratory, EPA, Athens, Georgia (1998) 

  12. Ministry of Environment, Korean Standard Method, Korea (2000) 

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