Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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The Improvement of Bio-gas Production through the Change of Sludge-Recycle Ratio with Two-Stage Anaerobic Digestion

2단 혐기성소화조의 슬러지 반송율 변화를 통한 Bio-Gas 생산 증대

  • Kwon, Kooho (Department of Environmental Engineering, Kyungpook National University) ;
  • Lee, Taewoo (Daegu Metropolitan City Environmental Installations Corporation) ;
  • Jung, Yongjun (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Min, Kyungsok (Department of Environmental Engineering, Kyungpook National University)
  • 권구호 (경북대학교 환경공학과) ;
  • 이태우 (대구광역시 환경시설공단) ;
  • 정용준 (부산가톨릭대학교 환경공학과) ;
  • 민경석 (경북대학교 환경공학과)
  • Received : 2013.08.02
  • Accepted : 2014.04.28
  • Published : 2014.06.30
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Abstract

This study has cross checked the change of internal sludge-recycle in Anaerobic-Digestion, and researched about not only the improvement of Bio-gas production from the digested sludge but also the efficient method of sludge minimization. Ultimate object of the study is to reduce the amount of sludge by the improved efficiency of contact with the organic-matter and the microbes in Anaerobic-Digestion. The sludge-recycle fluidized sludge layer and raised the activity of the sludge, the optimal sludge-recycle ratio, VS and COD removal ratio were 1,000%, 28.2% and 27.7%, respectively. Through these results of this study, it may be of use to treat waste sludge by the sludge-recycle ratio in terms of minimization and circulation of resources.

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References

  1. APHA, 1998, Standard methods for examination of water and wastewater, 20th ed. American Public Health Association Washington, D. C., USA.
  2. Kim, H. S., Lee, T. J., 2011, A study of the improvement in an anaerobic digester for sludge reduction, J. Kor. Soc. Envi. Eng., 33, 516-522. https://doi.org/10.4491/KSEE.2011.33.7.516
  3. Kim, J. A., Yoon, Y. M., Jeong, K. H., Kim, C. H., 2012, Effects of supplementation of mixed methanogens and rumen cellulolytic bacteria on biochemical methane potential with pig slurry, Kor. J. Soil Sci. Fert., 45, 1049-1057. https://doi.org/10.7745/KJSSF.2012.45.6.1049
  4. Kim, N. C., 2008, Study on biogas production and reduction of organic matters of thickened sewage sludge by anaerobic digestion, J. Mat. Cyc. Was. Manag., 25, 50-57.
  5. Kim, N. C., Ryu, G. Y., Ahn, C. W., Kim, Y. J., Hur, G., Jung, Y. G., Bae, J. G., 2002, Special feature(Review), J. Kor. Org. Res. Recycling Asso., 10, 7-23.
  6. Kim, S. S., 2010, Applications and technical standards for biogas, J. Kor. Org. Res. Recycling Asso., 18, 38-49.
  7. Lim, B.S., Kim, B.C., Chung, I., 2012, Anaerobic treatment of food waste leachate for biogas production using a novel digestion system, Environ. Eng. Res., 17, 41-46. https://doi.org/10.4491/eer.2012.17.1.041
  8. McCarty, P. L., Smith, D. P., 1986, Anaerobic wastewater treatment, Environ. Sci. Tech., 20, 1200-1206. https://doi.org/10.1021/es00154a002
  9. Min, K. S., Ahn, Y. H., 1996, Recycle effects on the characteristics of biopellets produced in enhanced UASB(EUASB) reactor, J. Kor. Soci. .Wat. Envi., 12, 333-341.
  10. Ministry of Environment, 2008, Certified analytical methods of water quality.
  11. Nam, Y. W., Han, K. S., 2011, A study on the present state and improvement plan of domestic sewage sludge treatment, J. Mat. Cyc. Was. Manag., 28, 103-109.
  12. Park, J. K., Kim, H. I., Ahn, Y. M., Higuchi, S., Lee, N. H., 2012, Assessment of dynamic kinetics and synergistic effect for anaerobic co-digestion of sewage sludge, J. Mat. Cyc. Was. Manag., 29, 624-633.
  13. Woo, M. H., Han, G. B., 2010, A study on the sludge reduction and biogas production through a twophase anaerobic digestion process, J. Kor. Soc. Envi. Eng., 32, 894-899.