Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
권호 표지
DOI QR코드

DOI QR Code

Pig slurry treatment by the pilot scale hybrid multi-stage unit system (HMUS) followed by sequencing batch reactor (SBR)

HMUS와 SBR 반응조를 이용한 축분처리에 관한 연구

  • Lee, Young-Shin (Department of environmental engineering Hanseo university) ;
  • Han, Gee-Bong (Department of life science biotechnology and environmental engnieering The catholic university of korea)
  • 이영신 (한서대 환경공학과) ;
  • 한기봉 (가톨릭대 생명환경학부 환경공학전공)
  • Published : 2013.06.30
⟨ Previous Next ⟩

Abstract

Experiments in a pilot-scale hybrid multi-stage unit system (HMUS) combination of ATAD and EGSB followed by SBR process for pig slurry treatment were conducted to demonstrate the feasibility of using autothermal thermophilic aerobic digestion (ATAD) and expended granular sludge bed (EGSB) followed by sequencing batch reactor (SBR) system. Contaminants in pig slurry with high organic matter, nitrogen (N) and phosphorus (P) content were completely removed in the combined process. The highest removal rate for CODcr among contaminants in the feed pig slurry was attained by about 43.3% in ATAD unit process. Also TS removal rate of 96.5% was attained and the highest in the next coagulation unit process. The highest removal rate of CODcr under operating parameter conditions of OLR(organic loading rate), 3-6Kg $COD/m^3{\cdot}day$ and line velocity, 1.5-4m/h was earned at 3days of HRT. The disinfection of pathogens was effective at 50,000mg/L of TS in ATAD unit process. Biogas production per organic removal was $2.3{\sim}8.5m^3/kgTS{\cdot}d$ (average $5.2m^3/kgTS{\cdot}d$) in EGSB unit process. The average removal rates of CODcr 71.7%, TS 64.1%, TN 45.9%, and TP 50.4% were earned in the intermittent aeration SBR unit process.

현장 실규모의 다단공정으로 ATAD, EGSB 및 SBR을 조합한 HMUS 공정을 이용하여 돼지 축분 처리가능성을 시험하였다. 실험결과 고농도 유기물, 질소와 인의 제거에 효과적이었다. 각 오염항목의 시스템 공정별 처리효율이 ATAD 공정에서는 CODcr이 43.3%로 제일 높게 나타났다. 다음 단계인 응집침전 공정에서는 TS의 제거효율이 96.5%로 가장 높게 나타났다. 운전조건 중 OLR은 3-6Kg $COD/m^3{\cdot}day$ 및 선속도는 1.5-4 m/h의 범위일 때 평균 CODcr 제거 효율은 HRT 3일에서 가장 높게 나타났다. 유입수의 성상이 영향을 미치는 고온호기성 산화반응은 TS가 50,000 mg/L 이상 되어야 고온발열효과를 얻어 병원균을 사멸할 수 있는 온도를 얻었다. EGSB 공정을 거치는 동안 유기물제거량 당 발생된 가스발생량은 $2.3{\sim}8.5m^3/kgTS{\cdot}d$ (평균 $5.2m^3/kgTS{\cdot}d$)로 나타났다. 후처리단계인 간헐포기공정에서 전체운전기간 중 평균제거효율은 CODcr 71.7%, TS 64.1%, TN 45.9%, 및 TP 50.4% 로 나타났다.

Keywords

References

  1. Lee, G. S., Han, G. B., Ahn, W. J. and Hong, S. M., "Comparison of wastewater treatment by variation of HLR on biofilm processes", The korean Society of Water and Wastewater, pp. B9-12 (2002).
  2. Lee, K. H., Kang, K. A. Song, S. L. and Park, T. J., " Effects of internal recycle ration and media packing ratio on nitrification in a submerged fixed-film reactor", J. of KSEE, 19(4), pp. 471-480 (1997).
  3. Kim, W. J. and Ahn, D. H., "A Study on the treatment of piggery wastewater by high efficient biofilm process and post-treatment process", J. of KSEE, pp. 233-234 (2002).
  4. 국립환경연구원, 수계 오염총량관리 기술지침 (2002).
  5. Kelly, H. G. and Mavinic, D. S., "Autothermal thermophilic aerobic digestion research application and operational experience", WEFTEC 2003 Workshop W104 Thermophilic Digestion, Los Angeles, (2003).
  6. Park, C. H., Bae, Y.S. and Han, G. B., "Implementation of an excess sludge reduction step in an activated sludge process", J. Envron. Sci. Health Part A 45, pp. 709-718. (2010). https://doi.org/10.1080/10934521003648925
  7. Mavinic, D. S., Mahendraker, V., Sharma, A. and Kelly, H. G., "Effect of microaerophilic conditions on autothermal thermophilic aerobic digestion process. J. Environ. Eng., 127(4), pp. 311-316. (2001). https://doi.org/10.1061/(ASCE)0733-9372(2001)127:4(311)
  8. Hansen, K. H., Angelidaki, I. and Ahring, B. K., "Improving thermophilic anaerobic digestion of swine manure", Water Res., 33 (8), pp. 1805-1810. (1999). https://doi.org/10.1016/S0043-1354(98)00410-2
  9. O'Reilly, C. and Colleran, E., "Microbial sulphate reduction during anaerobic digestion: EGSB process performance and potential for nitrite suppression of SRB activity", Water Sci. Technol., 52 (1-2), pp. 371-376. (2005).
  10. Veeresh, G. S., Kumar, P. and Mehrotra, I., "Treatment of phenol and cresols in upflow anaerobic sludge blanquet (UASB) process: a review", Water Res., 39, pp. 154-170. (2005). https://doi.org/10.1016/j.watres.2004.07.028
  11. Karakashev, D., Schmidt, J. E. and Angelidaki, I., "Innovative process scheme for removal of organic matter, phosphorous and nitrogen from pig manure", Water Res., 42, pp. 4083-4090. (2008). https://doi.org/10.1016/j.watres.2008.06.021
  12. Obaja, D., Mace, S. and Mata-Alvarez, J., "Biological nutrient removal by a sequencing batch reactor (SBR) using an internal organic carbon source in digested piggery wastewater", Bioresour. Technol., 96(1), pp. 7-14. (2005). https://doi.org/10.1016/j.biortech.2004.03.002
  13. Zhu, C., Zhang, Z. and Miller, C., "A laboratory scale sequencing batch reactor with the addition of acetate to remove nutrient and organic matter in pig slurry", Biosys. Eng., 93(4), pp. 437-446. (2006). https://doi.org/10.1016/j.biosystemseng.2006.01.010
  14. Han, G. B., Lee, B. H. and Lee, Y. W., "Development of soil-covered SBR process for small scale sewage treatment", Environ. Technol., 27, pp. 715-722. (2006). https://doi.org/10.1080/09593332708618684
  15. Mace, S. and Mata-Alvarez, J., "Utilization of SBR technology for wastewater treatment: an overview", Ind. & Eng. Chem. Res., 41(23), pp. 5539-5553. (2002). https://doi.org/10.1021/ie0201821