DOI QR코드

DOI QR Code

A Study on Anaerobic Sewage Treatment Using a Fluidized Bed Reactor

유동상 반응조를 이용한 하수의 혐기성 처리에 관한 연구

  • Published : 2012.04.16

Abstract

Anaerobic sewage treatment is drawing attentions due to high energy consumptions and sludge production associated with aerobic treatment. This study evaluates the treatment characteristics and energy balance of a fluidized bed reactor (FBR) for treating domestic sewage at $20^{\circ}C{\sim}25^{\circ}C$ for 245 days. Sewage fed to the FBR was a primary clarifier effluent of a domestic sewage treatment plant with COD of 99-301 mg/L and $BOD_{5}$ of 37-149 mg/L. Effluent $SBOD_{5}$ and its removal efficiency at HRT of 1~3 h were 6~15 mg/L and 73.4~85.5%, respectively, achieving high removal efficiency for soluble organic substances even at short HRTs. COD removal efficiency and its effluent concentration were 53.8~75.9% and 51~83 mg/L, respectively. The energy production potential from gaseous methane was 0.009-0.028 kWh/$m^{3}$, which satisfies the energy required for the FBR operation.

Keywords

References

  1. 박승호, 김병주, 배재호, 이철모, 김응호 (2007) 국내 공공하수도 시설의 에너지 사용 및 자원화실태 조사연구, 대한상하수도학회지, 21(5), pp. 539-549.
  2. 오태석, 김민정, 임정짐, 김용수, 유창규 (2011) 기후변화를 고려한 하수처리공법별 온실가스 및 슬러지 배출량상정 및 환경성 평가, 한국화학공학회지, 49(2),pp. 187-194.
  3. 유상웅, 김덕진, 이선구 (2005) 국내 하수처리장 유지관리비용 분석 및 절감방안, 공동 추계학술발표회 논문집, 대한상하수도학회 물환경학회, 광주, pp. 69-77.
  4. Gomec, C. Y. (2010) High-Rate Anaerobic Treatment of Domestic Wastewater at Ambient Operating Temperatures: A Review on Benefits and Drawbacks, Journal of Environmental Science and Health, 45(10), pp. 1169-1184. https://doi.org/10.1080/10934529.2010.493774
  5. Herbert, H. P. F. (2010) Environmental Anaerobic Technology-Application and New Development, World Scientific Publishing Co, pp. 212-243.
  6. Kim, J., Kim, K., Ye, H., Lee, E., Shin, C., McCarty, P. L., and Bae, J. (2011) Anaerobic Fluidized Bed Membrane Bioreactor for Wastewater Treatment, Environmental Science and Technology , 45(2), pp. 576-581. https://doi.org/10.1021/es1027103
  7. Manariotis, I. D., and Grigoropoulos, S. G. (2006) Municipal Wastewater Treatment Using Upflow Anaerobic Filters, Water Environment Research , 78(3), pp. 233-242. https://doi.org/10.2175/106143005X90029
  8. Marin, P., Alkalay, D., Guerrero, L., Chamy, R., and Schiappacasse, M. C. (1999) Design and Startup of an Anaerobic Fluidized Bed Reactor, Water Science and Technology, 40(8), pp. 63-70.
  9. Sanz, I., and Fdz-Polanco, F. (1990) Low Temperature Treatment of Municipal Sewage in Anaerobic Fluidized Bed Reactors, Water Research, 24(4), pp. 463-469. https://doi.org/10.1016/0043-1354(90)90230-4
  10. Tandukar, M., Ohashi, A., and Harada, H. (2007) Performance Comparison of a Pilot-Scale UASB and DHS System and Activated Sludge Process for the Treatment of Municipal Wastewater, Water Research, 41(12), pp. 2697-2705. https://doi.org/10.1016/j.watres.2007.02.027
  11. Vieira. S. M. M. (1988) Anaerobic Treatment of Domestic Sewage in Brazil. Research Results and Full-Scale Experience, In Proceeding of the Fifth International Conference on Anaerobic Digestion, Bologna, pp. 185-196.