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Optimized coupling of an intermittent DC electric field with a membrane bioreactor for enhanced effluent quality and hindered membrane fouling
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Optimized coupling of an intermittent DC electric field with a membrane bioreactor for enhanced effluent quality and hindered membrane fouling

Tafti, A. D.

  1. DOI:10.1016/j.seppur.2015.07.004
  2. Main Entry: Tafti, A. D.
  3. Title:Optimized coupling of an intermittent DC electric field with a membrane bioreactor for enhanced effluent quality and hindered membrane fouling.
  4. Publisher:Elsevier, 2015.
  5. Abstract:Abstract This article studies a submerged membrane electro-bioreactor (SMEBR), an integrated system embracing biological treatment, electrical coagulation, and membrane filtration, all in one individual reactor, by applying an alternating electric field to a membrane bioreactor (MBR). The alternating electric field has been applied with current densities ranging from 5 to 23 A/m2 under eight different electrical exposure modes. The results indicate that under the optimum condition with a current density of 12.5 A/m2 and an exposure mode of (415 s OFF-185 s ON), the COD and phosphate removals would be respectively 4% and 43% more compared to an unmodified MBR system. Also at the same current density but with an exposure mode of (496 s OFF-104 s ON), ammonia removal efficiency was 22% more than the MBR system. At lower current density of 5 with an exposure mode (400 s OFF-200 s ON), the amounts of polysaccharides and proteins were respectively 59% and 51% less than ordinary membrane bioreactor. In summary, the SMEBR reactor membrane fouling is hindered while filtration course and particle size increase. Moreover, at current density less than 20 A/m2 sludge activity enhances
  6. Notes:Sharif Repository
  7. Subject:Activated sludge properties.
  8. Subject:Submerged membrane electro-bioreactor.
  9. Subject:Abstracting.
  10. Subject:Activated sludge process.
  11. Subject:Bioconversion.
  12. Subject:Bioreactors.
  13. Subject:Current density.
  14. Subject:Effluents.
  15. Subject:Electric fields.
  16. Subject:Membrane fouling.
  17. Subject:Membranes.
  18. Subject:Microfiltration.
  19. Subject:Particle size.
  20. Subject:Removal.
  21. Subject:Wastewater treatment.
  22. Subject:Water quality.
  23. Subject:Activated sludge.
  24. Subject:Alternating electric field.
  25. Subject:Biological treatment.
  26. Subject:Electro bioreactors.
  27. Subject:Membrane bio reactor (MBR)
  28. Subject:Membrane bioreactor.
  29. Subject:Membrane filtrations.
  30. Subject:Soluble microbial products.
  31. Subject:Filtration.
  32. Added Entry:Seyyed Mirzaii, S. M.
  33. Added Entry:Andalibi, M. R.
  34. Added Entry:Vossoughi, M.
  35. Added Entry:Sharif University of Technology.
  36. Source: Separation and Purification Technology ; Volume 152 , 2015 , Pages 7-13 ; 13835866 (ISSN)
  37. Web Site:http://www.sciencedirect.com/science/article/pii/S1383586615300721

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