An Application of the NPR Process for the Treatability Improvement of an Existing Sewage Treatment Plant

기존 하수처리장 성능개선을 위한 NPR공정의 적용

  • Moon, Tae Hoon (School of Civil and Environmental Engineering, Yonsei University) ;
  • Ko, Kwang Baik (School of Civil and Environmental Engineering, Yonsei University) ;
  • Song, Eui Yeol (Daejeon Metropolitan City Facility Management Corporation)
  • 문태훈 (연세대학교 공과대학 토목환경공학과 환경공학연구실) ;
  • 고광백 (연세대학교 공과대학 토목환경공학과 환경공학연구실) ;
  • 송의열 (대전광역시 시설관리공단)
  • Received : 2007.08.16
  • Accepted : 2007.09.19
  • Published : 2007.09.30

Abstract

Most of the sewage treatment plants in Korea are being operated by using the conventional activated sludge process. Recently, as the water criteria have been strict with regard to such main culprits of eutrophication, the existing sewage treatment plants are obliged to upgrade their treatment technology to meet the criteria. Under such circumstances, this study was aimed at analyzing the conditions of an existing sewage treatment plants in Korea, and thereupon, test its treatment performance for the actual sewage water by operating a pilot plant. When the pilot plant was operated with the NPR process at the capacity of $30m^3/day$, the average contents of BOD, $COD_{Mn}$, SS, T-N and T-P in the effluents were 7.0 mg/L, 9.7 mg/L, 5.1 mg/L, 8.0 mg/L and 0.23 mg/L, respectively, which were very stable in general. Accordingly, if the NPR process used for this pilot plant to upgrade the treatment technology for the sewage treatment plat could be adopted, the effluent water quality criteria effective beginning from 2008 would be met.

Keywords

References

  1. 고광백, 김영관, 강선홍, 김동진, 김진호, 독고석, 박철휘, 윤주환, 임재명, 조욱상, 송창수, 한무영, 폐수처리공학, 동화기술 (1993)
  2. 도중호, ASM모델 을 이용한 대규모 하수처리장의 시설 최적화 운영방안, 박사학위 논문, 경북대학교 (2002)
  3. 성남시, 4년간 운영자료 (1999 - 2002)
  4. 코오롱건설(주), NPR Process (2000)
  5. 환경관리공단, 환경신기술 설계자료집 (2003)
  6. 환경부, 가동중인 하수종말처리장 현황 (2001 - 2003)
  7. 환경부, 하수도시설 설치사업 업무처리일반지침(개정) (2003)
  8. Shapiro, J., Levin, G. V. and Humberto, Z. G., Anoxically Induced Release of Phosphate in Wastewater Treatment, JWPCF, 39, pp. 1810 (1967)