Abstract:
:Membrane bioreactors can be operated with intermittent permeation and continuous aeration. Aeration close to the surface of a submerged membrane helps to maintain a membrane surface that is free from fouling. The conditions under which this occurs depend on the interaction between flux and aeration rate. Increased flux is possible without severe fouling if the aeration rate is increased. Results of performing membrane operation under the dual intermittency of aeration rate and permeation rate, with permeation also interrupted on a regular cycle, are presented. The results show that membrane plants designed for optimal operation at moderate flux can survive effectively with higher flux operation for restricted periods. Designing to account for such effects could reduce overall plant costs.
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Howell JA,Arnot TC,Chua HCdoi
10.1111/j.1749-6632.2003.tb06022.xsubject
Has Abstractpub_date
2003-03-01 00:00:00pages
492-501eissn
0077-8923issn
1749-6632journal_volume
984pub_type
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