Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Characterization of membrane fouling and CEB (Chemical enhanced backwashing) efficiency with temperature in SMBR Process

MBR 공정에서 수온에 따른 막오염 및 CEB 세정효율 특성

  • Park, Kitae (Sungkyunkwan University Graduate School of Water Resources) ;
  • Park, Jeonghoon (Sungkyunkwan University Graduate School of Water Resources) ;
  • Choi, Eunhye (Sungkyunkwan University Graduate School of Water Resources) ;
  • Kim, Hyungsoo (Sungkyunkwan University Graduate School of Water Resources) ;
  • Kim, Jihoon (Sungkyunkwan University Graduate School of Water Resources)
  • 박기태 (성균관대학교 수자원전문대학원) ;
  • 박정훈 (성균관대학교 수자원전문대학원) ;
  • 최은혜 (성균관대학교 수자원전문대학원) ;
  • 김형수 (성균관대학교 수자원전문대학원) ;
  • 김지훈 (성균관대학교 수자원전문대학원)
  • Received : 2017.08.04
  • Accepted : 2017.08.31
  • Published : 2017.10.31
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Abstract

In this paper, we investigate the characteristics of membrane fouling caused by water temperature in the Membrane bioreactor(MBR) process and try to derive the membrane fouling control by chemical enhanced backwashing(CEB). The extracellular polymeric substances(EPS) concentration was analyzed according to the water temperature in the MBR, and the membrane fouling characteristics were investigated according to the conditions, with sludge & without sludge, through a lab-scale reactor. As shown in the existing literature the fouling resistance rate was increased within sludge with the water temperature was lowered. However, in the lab-scale test using the synthetic wastewater, the fouling resistance increased with the water temperature. This is because that the protein of the EPS was more easily adsorbed on the membrane surface due to the increase of entropy due to the structural rearrangement of the protein inside the protein as the water temperature increases. In order to control membrane fouling, we tried to derive the cleaning characteristics of CEB by using sodium hypochlorite(NaOCl). We selected the condition with the chemicals and the retention time, and the higher the water temperature and the chemical concentration are the higher the efficiencies. It is considered that the increasing temperature accelerated the chemical reaction such as protein peptide binding and hydrolysis, so that the attached proteinaceous structure was dissolved and the frequency of the reaction collision with the protein with the chemical agent becomes higher. These results suggest that the MBRs operation focus on the fouling control of cake layer on membrane surface in low temperatures. On the other hand, the higher the water temperature is the more the operation strategies of fouling control by soluble EPS adsorption are needed.

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References

  1. 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
  2. Bird, M. R., Bartlett, M. (2002). Measuring and modelling flux recovery during the chemical cleaning of MF membranes for the processing of whey protein concentrate, Food ENG., 53, 143-152. https://doi.org/10.1016/S0260-8774(01)00151-0
  3. Bradford, M. M. (1976). A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding, Anal. Biochem., 72, 248-254. https://doi.org/10.1016/0003-2697(76)90527-3
  4. Chang, I. S., Lee, C. H. (1998). Membrane filtration characteristics in membrane-coupled activated sludge system - the effect of physiological states of activated sludge on membrane fouling, Desalination, 120, 221-233. https://doi.org/10.1016/S0011-9164(98)00220-3
  5. Chang, Y., Kramer, A. J., Lubben, D. R. (2002). "Effective Membrane Fouling Control: A New Membrane Cleaning Concept", Proceedings of Water Quality Technology Conference, Seattle, WA.
  6. 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
  7. 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
  8. Gerhardt, P. (1994). Methods for General and Molecular Bacteriology, American Society for Microbiology, USA. pp.185.
  9. Guglielmi, G., Chiarani, D., Judd, S. J. and Andreottola, G. (2007). Flux criticality and sustainability in a hollow fibre submerged membrane bioreactor for municipal wastewater treatment, J. Membr. Sci., 289, 241-289. https://doi.org/10.1016/j.memsci.2006.12.004
  10. 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
  11. 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
  12. O. Joshi, H.J. Lee, McGuire, P. Finneran, K.E. Bird (2006) Protein concentration and adsorption time effects on fibrinogen adsorption at heparinized silica interfaces, Colloids and Surfaces B: Biointerfaces 50, 26-35 https://doi.org/10.1016/j.colsurfb.2006.03.021
  13. Kim, K. Y. (2009). The Effect of Periodic Chemical Backwash on Filtration Performance of Membrane Bioreactor, Doctor's Thesis, The graduate school of SungKyunKwan University.
  14. 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.
  15. Lee, C. H. (2012). Evaluation of filtration resistance by chemical backwash in the PTFE membrane system for waste water reuse, Master's Thesis, The graduate school of Sung Kyun Kwan University.
  16. Lee, E. J. (2014). Fouling control by maintenance chemical cleaning in flat sheet membrane bioreactor(MBR), Doctor's Thesis, The graduate school of SungKyunKwan University.
  17. Lee, J. C., Ahn, W. Y. and Lee, C. H. (2001). Comparison of the filtration characteristics between attached and suspended growth microorganisms in submerged membrane bioreactor, Water. Res., 35, 2435-2445. https://doi.org/10.1016/S0043-1354(00)00524-8
  18. 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
  19. Liu, C., Caothien, S., Hayes, J., Caohuy, T. and Otoyo, T. (2001). "Membrane cleaning: from art to science", in Proceedings of the Proceedings AWWA Membrane Technology Conference, 4-7 March, 2001, San Antonio TX, USA.
  20. 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
  21. 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.
  22. Pearce, G. (2007). Introduction to membranes : Fouling control, Filtr. Sep., 44, 30-32.
  23. Pribyl, M., Tueck, F. and Wilderer, P.A., J.Wanner. (1996). Amount and nature of soluble refractory organics produced by activated sludge microorganisms in sequencing batch and continuous flow reactors, Water Sci. Technol., 35, 27-34.
  24. 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
  25. Raosenberger, S., Helmus, F. P., Krause, S., Bareth, A., Meyer-Blumenroth, U. (2011). Principles of an enhanced MBR-process with mechanical cleaning, Water Sci. Technol., 64, 1951-1958. https://doi.org/10.2166/wst.2011.765
  26. Ribeiro Jr., C.P., Mewes, D., 2006. On the effect of liquid temperature upon bubble coalescence. Chem. Eng. Sci. 61 (17), 5704-5716. https://doi.org/10.1016/j.ces.2006.04.043
  27. Smith, P.J., Vigneswaran, S. and Ngo H.H. (2006). A new approach to backwash initiation in membrane systems, J. Membr. Sci., 278, 381-389. https://doi.org/10.1016/j.memsci.2005.11.024
  28. 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
  29. Wang, Z., Wu, Z., Tang, S. (2010). Impact of temperature seasonal change on sludge characteristics and membrane fouling in a submerged membrane bioreactor, Sep. Sci. Technol., 45, 920-927. https://doi.org/10.1080/01496391003656974
  30. You, S. J., Ahan, H. W., Park, S. H., Lim, J. L., Hong, S. C., Lee, B. I. (2014). The Study on Optimum Operation Conditions of Ceramic MF Membrane Process in Y Water Treatment Plant, Membr., 24, 201-212. https://doi.org/10.14579/MEMBRANE_JOURNAL.2014.24.3.201
  31. Zsirai, T., Buzatu, P., Aerts, P., Judd, S. (2012). Efficacy of relaxation, backflushing, chemical cleaning and clogging removal for an immersed hollow fibre membrane bioreactor, Water Res., 46, 4499-4507. https://doi.org/10.1016/j.watres.2012.05.004