Turnup turndown of membrane operation of membrane bioreactors

J A Howell, T C Arnot, H C Chua

Research output: Contribution to journalArticlepeer-review

Abstract

Membrane bioreactors can be operated with intermittent permeation and continuous aeration. Aeration close to the surface of a submerged membrane helps maintain a membrane surface free from fouling. Conditions under which this occurs depend on the interaction between flux and aeration rate. Increased flux is possible without severe fouling with aeration rate. Results of membrane operation under the dual intermittence of aeration and permeation rates, with permeation also interrupted on a regular cycle, are presented. Results showed membrane plants designed for optimal operation at moderate flux can survive effectively with higher flux operation for restricted periods. Design to account for such effects could reduce overall plant costs. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)492-501
Number of pages10
JournalAnnals of the New York Academy of Sciences
Volume984
Issue numberAdvanced Membrane Technology
Publication statusPublished - 2003

Keywords

  • intermittent permeation continuous aeration operation membrane bioreactor wastewater treatment
  • Design (membrane bioreactor wastewater treatment
  • Wastewater treatment (aeration
  • Economics (performance and economics of intermittent permeation and continuous aeration operation of membrane bioreactors)
  • Fouling (prevention of
  • Wastewater treatment (membrane bioreactor
  • Wastewater treatment (membrane sepn.
  • performance and economics of intermittent permeation and continuous aeration operation of membrane bioreactors)

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