한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제37권1호
  • /
  • Pages.47-54
  • /
  • 2021
  • /
  • 2289-0971(pISSN)
  • /
  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지
DOI QR코드

DOI QR Code

호기성 그래뉼 슬러지를 이용한 하수고도처리기술(AGS-SBR)

Advanced Wastewater Treatment Process Using Aerobic Granular Sludge (AGS-SBR)

  • 투고 : 2020.11.11
  • 심사 : 2021.01.04
  • 발행 : 2021.01.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Aerobic granular sludge (AGS) can be classified as a type of self-immobilized microbial aggregates measuring more than 0.2 mm. It offers the option to simultaneously remove COD, N, and P that occur in different zones inside a granule. Also, AGS is characterized by high precipitability, treatability with high organic loading, and high tolerance to low temperature. In this study, a sequencing batch reactor inoculated with AGS (AGS-SBR) is a new advanced wastewater treatment process that was proven to grow AGS with integrated nutrient removal and low C/N ratio. A pilot plant, AGS-SBR with a capacity of 225 ㎥/d was installed at an S sewage treatment plant in Gyeonggi-do. The results of the operation showed that the water quality of the effluent indicated that the value of BOD5 was 1.5 mg/L, CODMn was 11.4 mg/L, SS was 6.2 mg/L, T-N was 13.2 mg/L, and T-P was 0.197 mg/L, and all of these values reliably satisfied an effluent standard (I Area). In winter, the T-N treatment efficiency at a lower temperature of less than 11℃ also showed reliability to meet the effluent standard of the I Area (20 mg/L or less). Analysis of microbial community in AGS showed a higher preponderance of beneficial microorganisms involved in denitrification and phosphorus accumulation compared with activated sludge. The power consumption and sludge disposal cost were reduced by 34.7% and 54.9%, respectively, compared to the domestic SBR type sewage treatment plant with a processing capacity of 1,000 ㎥/d or less.

키워드

참고문헌

  1. Boden, R., Hutt, L. P., and Rae, A. W. (2017). Reclassification of Thiobacillus aquaesulis (Wood & Kelly, 1995) as Annwoodia aquaesulis gen. nov., comb. nov., transfer of Thiobacillus (Beijerinck, 1904) from the Hydrogenophilales to the Nitrosomonadales, proposal of Hydrogenophilalia class. nov. within the 'Proteobacteria', and four new families within the orders Nitrosomonadales and Rhodocyclales, International Journal of Systematic and Evolutionary Microbiology, 67(5), 1191-1205. https://doi.org/10.1099/ijsem.0.001927
  2. De Bruin, L. M. M., De Kreuk, M. K., Van der Roest, H. F. R., Uijterlinde, C., and Van Loosdrecht, M. C. M. (2004). Aerobic granular sludge technology: An alternative to activated sludge, Water Science and Technology, 49, 11-12.
  3. El-Mamouni, R., Leduc, R., and Guiot, S. R. (1998). Influence of synthetic and natural polymers on the anaerobic granulation process, Water Science and Technology, 38, 341-347 https://doi.org/10.1016/S0273-1223(98)00710-0
  4. Kim, H. G. and Ahn, D. H. (2019). Effects of different hydraulic retention times on contaminant removal efficiency using aerobic granular sludge, Journal of Environmental Science, 28(8), 669-676.[Koran Literature]
  5. Korea construction standard center. (2017). Drainage design standard, Korea construction standard center. [Koran Literature]
  6. Lee, B. S. and Choi, S. W. (2019). Formation and characteristics of aerobic granular sludge using polymer in sequencing batch reactor, Journal of Korean Society Environmental Engineers 31(12), 1143-1150. [Koran Literature]
  7. Ministry of Environment (ME). (2015). Republic of Korea, Analysis for operation of public sewage treatment plan, Ministry of Environment. [Koran Literature]
  8. Ministry of Environment (ME). (2016). Republic of Korea, Analysis for operation of public sewage treatment plant, Ministry of Environment. [Koran Literature]
  9. Mo, W. J., Kim, H. Y., and Choi, H. N. (2019). The operation characteristics of advanced sewage treatment process using aerobic granular sludge in Pilot plant, Journal of Korean Society Environmental Engineers, 41(2), 61-68. [Koran Literature] https://doi.org/10.4491/KSEE.2019.41.2.61
  10. Tay, J. H., Liu, Q. S., and Liu, Y. (2001). The effect of shear force on the formation, structure and metabolism of aerobic granules, Applied Microbiology and Biotechnology, 57, 227-233. https://doi.org/10.1007/s002530100766
  11. Trussell, R. S., Adham, S., Trussell, R. R. (2005). Process limits of municipal wastewater treatment with the submerged membrane bioreactor, Journal of Environmental Engineering, 131(3), 410-416. https://doi.org/10.1061/(ASCE)0733-9372(2005)131:3(410)
  12. Van Loosdrecht, M. C. M., Eikelboom, D. H., Gjaltema, A., Mulder, A., Tijhuis, L., and Heijnen, J. J. (1995). Biofilm structures, Water Science and Technology, 32(8), 35-43. https://doi.org/10.1016/0273-1223(96)00005-4
  13. Yang, S. F., Tay, J. H., and Liu, Y. (2005). Effect of substrate nitrogen/chemical oxygen demand ratio on the formation of aerobic granules, Journal of Environmental Engineering, 131(1), 86-92. https://doi.org/10.1061/(ASCE)0733-9372(2005)131:1(86)