Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
권호 표지
DOI QR코드

DOI QR Code

The Recovery of Carbon Source from Municipal Primary Sludge using Pilot Scale Elutriated Acidogenic Fermentation

Pilot scale 세정산발효를 이용한 하수 일차슬러지의 산발효

  • Kwon, Kooho (Department of Environmental Engineering, Kyungpook National University) ;
  • Kim, Siwon (Department of Environmental Engineering, Kyungpook National University) ;
  • Jung, Yongjun (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Min, Kyungsok (Department of Environmental Engineering, Kyungpook National University)
  • Received : 2013.01.08
  • Accepted : 2013.03.04
  • Published : 2013.05.31
Download PDF
⟨ Previous Next ⟩

Abstract

Pilot scale study was carried out to produce Volatile Fatty Acids with primary sludge from municipal wastewater treatment plant. An acid fermenter was operated at pH 9, $35^{\circ}C$, SRT of 3.5-4.25d, using a final effluent as elutriating water(Mode-I) and pH 9, SRT 5d, temperature of $35^{\circ}C$(Mode-II), $55^{\circ}C$(Mode-III), using a primarily treated water as elutriating water. Although solubilization rate was enhanced with the increase of temperature, the VFAs production rate was decreased. The VS reduction was shown approximately 56%, and the sludge volume reduction was 93%. The optimal conditions for solubilization was obtained at pH 9, $35^{\circ}C$ and SRT of 5d.

본 연구에서는 하수일차슬러지의 가용화 및 산발효를 위한 pilot scale 세정산발효공정의 운전 특성을 검토하였다. 하수일 차슬러지의 가용화 및 산발효 특성을 평가하기 위해 SRT, 세정수 및 운전온도를 변화시켜 실험을 수행하였다. 세정산발 효공정의 가용화율은 온도가 높을수록 증가하는 반면, 산생성율은 중온조건($35^{\circ}C$)이 고온조건($55^{\circ}C$)보다 높게 나타났다. VS 감량은 약 56%, 슬러지 부피감량은 약 93%까지 나타났다. 가용화측면에서 세정산발효공정의 최적운전조건은 pH 9, $35^{\circ}C$ 및 SRT 5일이 적합 할 것으로 판단된다.

Keywords

References

  1. APHA, AWWA, WEF (2005). Standard Methods for the Examination of Water and Wastewater, 21th ed., Washington D.C..
  2. Canziani R., Pollice A. and Ragazzi M. (1995). Feasobility of using Primary-sludge Mesophilic Hydrolysis for Biological Removal of Nitrogen and Phosphorus from Wastewater, Bioresource Technology. 54(3), pp. 255-260. https://doi.org/10.1016/0960-8524(95)00134-4
  3. Kwon, K. H., Kim, S. W., Lee, M. J., and Min, K. S. (2006). Nitrogen and Phosphorus Removal using Elutriated Acids of Food Waste as an External Carbon Source in SBR, Journal of Korean Society on Water Environment, 22(3), pp. 462-467. [Korean Literature]
  4. Park, S. M., Min, K. S., Ahn, Y. H. and Park, J. B. (2004). Elutriated Acidogenic Fermentation of Sewage Primary Sludge, Journal of Korean Society of Environmental Engineers, 26(2), pp. 219-225. [Korean Literature]
  5. Shell D., Nguyen Q., Tucker M. and Boynton B. (1998). Pretreatment of Softwood by Acid-catalyzed Steam Explosion followed by Alkali Extraction, Applied Biochemistry and Biotechnoloy. 70-72(1), pp. 17-24. https://doi.org/10.1007/BF02920120
  6. Skalsky D. and Daigger G. (1995). Wastewater Solids Fermentation for Volatile Acid Production and Enhanced Biological Phophorus Removal, WER, 67(2), pp. 230-237. https://doi.org/10.2175/106143095X131402

Cited by

  1. Analysis of RCSTP Treatment Efficiency using BCS-II Process: Case Study of An-dong City vol.16, pp.4, 2014, https://doi.org/10.17663/JWR.2014.16.4.423
  2. A Study of RCSTP Nutrient Removal Efficiency in Winter Season vol.16, pp.3, 2014, https://doi.org/10.17663/JWR.2014.16.3.363