Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis on Retrofit Method to Improve TP treatment efficiency in Air-vent SBR process installed MWTP and RCSTP during winter based on Modeling

모델링 기반의 선회와류식 SBR 공법이 적용된 하수처리장 및 마을하수도 동절기 총인 개선방안 연구

  • Lee, Hyunseop (Department of Civil Engineering, Seoul National University of Science and Technology) ;
  • Im, Jiyeol (Department of Civil Engineering, Seoul National University of Science and Technology) ;
  • Gil, Kyungik (Department of Civil Engineering, Seoul National University of Science and Technology)
  • 이현섭 (서울과학기술대학교 건설시스템공학과) ;
  • 임지열 (서울과학기술대학교 건설시스템공학과) ;
  • 길경익 (서울과학기술대학교 건설시스템공학과)
  • Received : 2018.12.03
  • Accepted : 2019.05.20
  • Published : 2019.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

In the upstream and nearby areas of the water source, there are many areas where the sewerage penetration rate is relatively low due to development restrictions. This has been continuously affecting the pollution of the water source. As a measure to prevent this, method of distributing sewage and improving existing facilities are suggested. In this study, A MWTP(Municipal Watewater Treatment Plant) using the Air-vent SBR process located at upstream of An-dong and Im-ha Dam was selected as a modeling facility. And, the retrofit method to improve the effluent from RCSTP(Rural Community Sewage Tratment Plant) was induced based on A MWTP modeling result. The model construction and verification were carried out based on the operating data for 5 years (2012 ~ 2016). As a result, it was analyzed that the water quality of the effluent during the winter could be improved through control of cycle time in Air-vent SBR process and decreasing SRT (BOD: 1.8%, COD: 54.5%, SS: 4.3%, T-N; 0.8% and T-P: 7.7%). This research suggests that result of this research can be utilized as a retrofit method to improve the effluent overall treatment efficiency of the MWTP and the RCSTP which have similar operation process.

상수원의 상류 및 인근 지역의 경우, 개발 제한으로 인해 상대적으로 하수도 보급률이 낮은 지역이 많다. 이는 지속적으로 상수원 오염에 영향 미치며 이를 방지하기 위한 방안으로 하수도 보급 및 기존 시설의 개선 등의 방안이 제시되고 있다. 본 연구에서는 안동댐과 임하댐 상류에 위치하고 있으며, 선회와류식 SBR공법이 도입된 A하수처리장 모델링을 통해 동절기 마을하수도 방류수 수질 개선 방안을 마련하기 위한 연구를 실시하였다. 5년(2012년 ~ 2016년)간의 운전자료를 바탕으로 모델 구축·검증을 실시하였다. 모델링 결과, SRT 조절을 통해 동절기 방류수 수질 개선이 가능할 것으로 분석되었으며, 각 방류수 수질 기준 별 개선 효과는 BOD 1.8%, COD 54.5%, SS 4.3%, T-N 0.8%, T-P 7.7%로 나타났다. 본 연구를 통해 도출된 동절기 하수처리장 방류수 수질 개선을 위한 방안은 유사한 공법이 도입된 하수처리장 및 마을하수도의 운영 개선방안으로 활용될 수 있을 것으로 판단된다.

Keywords

References

  1. Ali R. Dincer and Fikret Kargi (2000) Kinetics of sequential nitrification and denitrification processes, Enzyme and Microbial Technology, 27, pp. 37-42. https://doi.org/10.1016/S0141-0229(00)00145-9
  2. Henze, M., Grady, C. P. L. Jr., Gujer, W., Marais, G. V. R.and Matsuo, T. (1987) Activated Sludge Model No. 1., IAWQScientific and Technology report No. 1, London, UK.
  3. Irvine, R. L., Ketchum, L. H., Breyfogle, R. and Barth, E. F. (1983) Municipal application of sequencing batch treatment at Culver, Indiana, JWPCF, 55, pp. 484-488.
  4. Im, JY and Gil, KI (2013). Analysis of RCSTP Wastewater Characteristics and Installed Treatment Process in Bong-Hwa Gun. Journal of Wetlands Society, 15(4), pp. 453-460. [Korean Literature] https://doi.org/10.17663/JWR.2013.15.4.453
  5. Im, JY and Gil, KI (2014). Analysis of RCSTP Treatment Efficiency using BCS-II Process : Case Study of An-dong City. Journal of Wetlands Society, 16(4), pp. 423-431. [Korean Literature]
  6. Im, JY and Gil, KI (2014). A Study of RCSTP Nutrient Removal Efficiency in Winter Season. Journal of Wetlands Society, 16(3), pp. 363-370. [Korean Literature]
  7. Gil, KI, Im, JY, Jung, DG. (2012). Research Paper : Analysis of RCSTP Sewage Characteristics and Treatment Efficiency in Rural Area. Journal of Korean Society on Water Environment, 28(6), pp. 851-858.[Korean Literature]
  8. Kang, K. W., Yoon, M. O., Lee, H. C. and Hwang, I. J. (2012) A study on the availability with failure rate of process for LNG plant, Kor. Air-Conditioning Refri. Eng, 24(4), pp. 358-363. [Korean Literature] https://doi.org/10.6110/KJACR.2012.24.4.358
  9. Lee, J.K., Lee, K.H. and Yim, S.B. (2007) Optimization ofnitrogen removal in a sequencing batch reactor system byvariation of the time distribution, J. Environ. Sci. Heal., 42(11), pp. 1655-1663. [Korean Literature] https://doi.org/10.1080/10934520701518182
  10. Lee, H. C. and Hwang, I. J. (2011) A study on the evaluation of RAM performance for test-bed of LNG plant, Proceeding of SAREK 2011 Summer Conference, pp. 281-284.
  11. Sharma, R. M. and Kumar, S. (2008) Performance modeling incritical engineering systems using RAM analysis, Reliability Eng. Syst. Safety. 93, pp. 891-897.