Anaerobic membrane bioreactors: Are membranes really necessary?

Membranes themselves represent a significant cost for the full scale application of anaerobic membrane bioreactors (AnMBR). The possibility of operating an AnMBR with a self-forming dynamic membrane generated by the substances present in the reactor liquor would translate into an important saving. A...

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Autores principales:	Jeison,David, Díaz,Israel, van Lier,Jules B.
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2008
Materias:	cake layer dynamic membrane MBR woven filter
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000400001
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spelling	oai:scielo:S0717-345820080004000012009-06-16Anaerobic membrane bioreactors: Are membranes really necessary?Jeison,DavidDíaz,Israelvan Lier,Jules B. cake layer dynamic membrane MBR woven filter Membranes themselves represent a significant cost for the full scale application of anaerobic membrane bioreactors (AnMBR). The possibility of operating an AnMBR with a self-forming dynamic membrane generated by the substances present in the reactor liquor would translate into an important saving. A self-forming dynamic membrane only requires a support material over which a cake layer is formed, which determines the rejection properties of the system. The present research studies the application of self-forming dynamic membranes in AnMBRs. An AnMBR was operated under thermophilic and mesophilic conditions, using woven and non woven materials as support for the dynamic membranes. Results showed that the formation of a cake layer over the support materials enables the retention of more than 99% of the solids present in the reactor. However, only low levels of flux were achieved, up to 3 L/m² x h, and reactor operation was unstable, with sudden increases in filtration resistance, due to excessive cake layer formation. Further fine-tuning of the proposed technology involves looking for conditions that can control effectively cake layer formation.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.11 n.4 20082008-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000400001en10.4067/S0717-34582008000400001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	cake layer dynamic membrane MBR woven filter
spellingShingle	cake layer dynamic membrane MBR woven filter Jeison,David Díaz,Israel van Lier,Jules B. Anaerobic membrane bioreactors: Are membranes really necessary?
description	Membranes themselves represent a significant cost for the full scale application of anaerobic membrane bioreactors (AnMBR). The possibility of operating an AnMBR with a self-forming dynamic membrane generated by the substances present in the reactor liquor would translate into an important saving. A self-forming dynamic membrane only requires a support material over which a cake layer is formed, which determines the rejection properties of the system. The present research studies the application of self-forming dynamic membranes in AnMBRs. An AnMBR was operated under thermophilic and mesophilic conditions, using woven and non woven materials as support for the dynamic membranes. Results showed that the formation of a cake layer over the support materials enables the retention of more than 99% of the solids present in the reactor. However, only low levels of flux were achieved, up to 3 L/m² x h, and reactor operation was unstable, with sudden increases in filtration resistance, due to excessive cake layer formation. Further fine-tuning of the proposed technology involves looking for conditions that can control effectively cake layer formation.
author	Jeison,David Díaz,Israel van Lier,Jules B.
author_facet	Jeison,David Díaz,Israel van Lier,Jules B.
author_sort	Jeison,David
title	Anaerobic membrane bioreactors: Are membranes really necessary?
title_short	Anaerobic membrane bioreactors: Are membranes really necessary?
title_full	Anaerobic membrane bioreactors: Are membranes really necessary?
title_fullStr	Anaerobic membrane bioreactors: Are membranes really necessary?
title_full_unstemmed	Anaerobic membrane bioreactors: Are membranes really necessary?
title_sort	anaerobic membrane bioreactors: are membranes really necessary?
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000400001
work_keys_str_mv	AT jeisondavid anaerobicmembranebioreactorsaremembranesreallynecessary AT diazisrael anaerobicmembranebioreactorsaremembranesreallynecessary AT vanlierjulesb anaerobicmembranebioreactorsaremembranesreallynecessary
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Anaerobic membrane bioreactors: Are membranes really necessary?

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