Ultra high efficiency aeration using membrane biofilm reactors

Membranes capable of bubbleless aeration have been combined with biofilms to provide high efficiency aeration for aerobic biological treatment of wastewaters. Both dense and microporous membranes have been used to demonstrate the process at laboratory and small pilot-scale. Microporous membranes hav...

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Bibliographic Details
Published inTribune de l'Eau (Belgium) Vol. 53; no. 603-605
Main Authors Stephenson, T, Brindle, K. (Cranfield Univ. (GB). School of Water Sciences)
Format Journal Article
LanguageEnglish
Published 01.01.2000
Subjects
AERATION
AIREACION
BIOREACTEUR
BIOREACTORS
BIORREACTORES
TRAITEMENT DES EAUX USEES
TRATAMIENTO DE AGUAS RESIDUALES
WASTEWATER TREATMENT
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Summary:Membranes capable of bubbleless aeration have been combined with biofilms to provide high efficiency aeration for aerobic biological treatment of wastewaters. Both dense and microporous membranes have been used to demonstrate the process at laboratory and small pilot-scale. Microporous membranes have the advantage of providing a gas-biofilm interface to allow for direct interfacial oxygen transfer. Experimental work using dead-end hollow fibre bubbleless oxygen transfer membrane bioreactors have demonstrated that 100 / oxygen utilisation efficiencies can be achieved in nitrifying systems. Standard aeration efficiencies of at least an order of magnitude greater than other pure oxygen systems were demonstrated. Therefore such systems could provide ultra high efficiency aeration for sustainable aerobic biological wastewater treatment.
Bibliography:2001000517
T01
P10
ISSN:0007-8115