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

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

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상하수도학회지 (Journal of the Korean Society of Water and Wastewater)
대한상하수도학회 (Korean Society Of Water And Wastewater)
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.

저자
  • 박정훈(성균관대학교 수자원전문대학원) | Jeonghoon Park (Sungkyunkwan University Graduate School of Water Resources)
  • 김형수(성균관대학교 수자원전문대학원) | Hyungsoo Kim (Sungkyunkwan University Graduate School of Water Resources)
  • 박기태(성균관대학교 수자원전문대학원) | Kitae Park (Sungkyunkwan University Graduate School of Water Resources)
  • 박정우(성균관대학교 수자원전문대학원) | Jungwoo Park (Sungkyunkwan University Graduate School of Water Resources)
  • 박세근(정우이엔티(주)) | Sekeun Park (Jeong Woo ENT Inc.)
  • 강희석(정우이엔티(주)) | Heeseok Kang (Jeong Woo ENT Inc.)
  • 김지훈(성균관대학교 수자원전문대학원) | Jihoon Kim (Sungkyunkwan University Graduate School of Water Resources) Corresponding author