상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제30권5호
  • /
  • Pages.605-612
  • /
  • 2016
  • /
  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지
DOI QR코드

DOI QR Code

MBR 공정에서 물리세정 조건에 따른 막 오염 제어 성능 평가와 현장 적용성에 관한 연구

Evaluating membrane fouling and its field applicability under different physical cleaning conditions in MBRs

  • 박정훈 (성균관대학교 수자원전문대학원) ;
  • 김형수 (성균관대학교 수자원전문대학원) ;
  • 박기태 (성균관대학교 수자원전문대학원) ;
  • 박정우 (성균관대학교 수자원전문대학원) ;
  • 박세근 (정우이엔티(주)) ;
  • 강희석 (정우이엔티(주)) ;
  • 김지훈 (성균관대학교 수자원전문대학원)
  • 투고 : 2016.08.24
  • 심사 : 2016.10.18
  • 발행 : 2016.10.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Membrane bioreactors (MBRs) employ a process of biological treatment that is based on a membrane that has the advantages of producing high-quality treated water and possessing a compact footprint. However, despite these advantages, the occurrence of "fouling" during the operation of these reactors causes the difficulty of maintenance. Hence, in this study, three physical cleaning methods, namely, backwashing, air scrubbing, and mechanical cleaning ball was performed to identify optimum operating conditions through laboratory scale experiments, and apply them in a pilot plant. Further, the existing MBR process was compared with these methods, and the field applicability of a combination of these physical cleaning methods was investigated. Consequently, MCB, direct control of cake fouling on the membrane surface was found to be the most effective. Moreover, as a result of operating with combination of the physical cleaning process in a pilot plant, the TMP increasing rate was found to be - 0.00007 MPa/day, which was 185% higher than that obtained using the existing MBR process. Therefore, assuming fouling only by cake filtration, about one year of operation without chemical cleaning is considered to be feasible through the optimization of the physical cleaning methods.

키워드

참고문헌

  1. American Public Health Association(APHA). (2005). American Public Standard Methods for the Examination of Water and Wastewater, 21th ed., American Public Health Association, Washington, DC, USA.
  2. Beyer, M., Lohrengel, B., Nghiem, L. D. (2010). Membrane fouling and chemical cleaning in water recycling applications, Desalination, 250, 977-981. https://doi.org/10.1016/j.desal.2009.09.085
  3. Chang, I. S., Bag, S. O., Lee, C. H. (2001). Effects of membrane fouling on solute rejection during membrane filtration of activated sludge, Process Biochem., 36, 855-860. https://doi.org/10.1016/S0032-9592(00)00284-3
  4. Fang, H. H. P., Shi, X. (2005). Pore fouling of microfiltration membranes by activated sludge, J. Membr. Sci., 264, 161-166. https://doi.org/10.1016/j.memsci.2005.04.029
  5. Farquharson, A., Zhou, H. (2010). Relationships of activated sludge characteristics to fouling rate and critical flux in membrane bioreactors for wastewater treatment, Chemosphere, 79, 149-155. https://doi.org/10.1016/j.chemosphere.2010.01.019
  6. Field, R., Hughes, D., Cui, Z., Tirlapur, U. (2008). Some observations on the chemical cleaning of fouled membranes, Desalination, 227, 132-138. https://doi.org/10.1016/j.desal.2007.08.004
  7. Han, S. H., Chang, I. S. (2016). Comparison of Filtration Resistances according to Membrane Cleaning Methods, J. Env. Sci. Intern., 25, 817-827. https://doi.org/10.5322/JESI.2016.25.6.817
  8. Han, X., Wang, Z., Wang, X., Zheng, X., Ma, J., Wu, Z. (2016). Microbial responses to membrane cleaning using sodium hypochlorite in membrane bioreactors : Cell integrity, key enzymes and intracellular reactive oxygen species, Water Res., 88, 293-300. https://doi.org/10.1016/j.watres.2015.10.033
  9. Hilal, N., Ogunbiyi, O. O., Miles, N. J., Nigmatullin, R. (2005). Methods employed for control of fouling in MF and UF membranes: A comprehensive review, Sep. Sci. Technol., 40, 1957-2005. https://doi.org/10.1081/SS-200068409
  10. Judd, S., Judd, C. (2006). The MBR Book : Principles and Applications of Membrane Bioreactors in Water and Wastewater Treatment. 2nd Ed., Vasa, England. pp. 342.
  11. Kim, B. K. (2011). Prediction of Membrane Fouling by using Flux Decline Model in Microfiltration, Master's Thesis, The graduate school of University of Seoul.
  12. Kimura, K., Maeda, T., Yamamura, H., Watanabe, Y. (2008). Irreversible membrane fouling in microfiltration membranes filtering coagulated surface water, J. Membr. Sci., 320, 356-362. https://doi.org/10.1016/j.memsci.2008.04.018
  13. Kimura, K., Yamamura, H., Watanabe, Y. (2006). Irreversible Fouling in MF/UF Membranes Caused by Natural Organic Matters (NOMs) Isolated from Different Origins, Sep. Sci. Technol., 41, 131-1344.
  14. Lee, S. J. (2009). A Study on Membrane Fouling by COD fraction of Influent in Submerged MBR, Master's Thesis, The graduate school of University of Seoul.
  15. Lin, J. C. T., Lee, D. J., Huang, C. (2010). Membrane Fouling Mitigation : Membrane Cleaning, Sep. Sci. Technol., 45, 858-872. https://doi.org/10.1080/01496391003666940
  16. Meng, F., Yang, F. (2007). Fouling mechanisms of deflocculated sludge, normal sludge, and bulking sludge in membrane bioreactor, J. Membr. Sci., 305, 48-56. https://doi.org/10.1016/j.memsci.2007.07.038
  17. Miyoshi, T., Yuasa, K., Ishigami, T., Rajabzadeh, S., Kamio, E., Ohmukai, Y., Saeki, D., Ni, J., Matsuyama, H. (2015). Effect of membrane polymeric materialson relationship between surface pore size and membrane fouling in membrane bioreactors, Appl. Surf. Sci., 330, 351-357. https://doi.org/10.1016/j.apsusc.2015.01.018
  18. Park, J. W. (2016). Characteristic of membrane fouling and control according to temperature changes in MBRs process, Master's Thesis, The graduate school of SungKyunKwan University.
  19. Pearce, G. (2007). Introduction to membranes : Fouling control, Filtr. Sep., 44, 30-32.
  20. Psoch, C., Schiewer, S. (2006). Resistance analysis for enhanced wastewater membrane filtration, J. Membr. Sci., 280, 284-297. https://doi.org/10.1016/j.memsci.2006.01.030
  21. Raosenberger, S., Helmus, F. P., Krause, S., Bareth, A., Meyer- Blumenroth, U. (2011). Principles of an enhanced MBRprocess with mechanical cleaning, Water Sci. Technol., 64, 1951-1958. https://doi.org/10.2166/wst.2011.765
  22. Rodgers, V. G. J., Sparks, R. E. (1991). Reduction of membrane fouling in the ultrafiltration of binary protein mixtures, AICHE J., 37, 1517-1528. https://doi.org/10.1002/aic.690371009
  23. Shim, S. N. (2013). Optimization of mechanical cleaning effect of moving beads using Box-Behnken design in MBR for wastewater treatment, Master's Thesis, The graduate school of Seoul National University.
  24. Wang, Z., Wu, Z., Tang, S. (2009). Extracellular polymeric substances (EPS) properties and their effects on membrane fouling in a submerged membrane bioreactor, Water Res., 43, 2504-2512. https://doi.org/10.1016/j.watres.2009.02.026
  25. Yang, Q., Chen, J., Zhang, F. (2006). Membrane fouling control in a submerged membrane bioreactor with porous, flexible suspended carriers, Desalination, 189, 292-302. https://doi.org/10.1016/j.desal.2005.07.011