Feasibility of anaerobic membrane bioreactors for the treatment of wastewaters with particulate organic matter

DAVID ALEJANDRO JEISON NUÑEZ, W. Van Betuw, J. B. Van Lier

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24 Scopus citations

Abstract

The application of anaerobic submerged membrane bioreactors was studied for the treatment of wastewaters containing suspended solids. A mesophilic and a thermophilic reactors were operated with a synthetic wastewater. The thermophilic reactor achieved higher volumetric loading rates than the mesophilic reactor, reaching 14g COD/Ld (0.47g COD/g VSSd). The mesophilic reactor showed signs of overload, when reaching a volumetric loading rate of 10g COD/Ld (0.32g COD/g VSSd). Cake formation was identified as the main factor governing applicable flux. Low levels of irreversible fouling were observed in both reactors. Low fluxes were attained and gas sparging was ineffective in increasing the critical flux.

Original languageEnglish
Pages (from-to)3417-3431
Number of pages15
JournalSeparation Science and Technology
Volume43
Issue number13
DOIs
StatePublished - 1 Jan 2008

Keywords

  • Anaerobic
  • Cake
  • Fouling
  • MBR
  • Membrane
  • Suspended solids

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