Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/16604

TitleSequencing batch biofilm reactor : from support design to reactor operation
Author(s)Matos, Maria F.
Alves, Cláudia
Campos, J. L.
Brito, A. G.
Nogueira, R.
KeywordsBiofilm
Nitrogen removal
Sequencing batch biofilm reactor (SBBR)
Support
Wastewater treatment
Issue dateJul-2011
PublisherTaylor & Francis
JournalEnvironmental Technology
Abstract(s)The aim of this work was to improve the overall understanding of sequencing batch biofilm reactors (SBBRs) from support selection (biofilm formation) to reactor operation (carbon and nitrogen removal). Supports manufactured with different materials and geometries were tested in 2.5 L SBBRs and it was observed that biofilm accumulation was favoured on the supports that presented a higher internal surface area. The geometry of the supports and the hydrodynamic conditions established in the SBBRs seemed to play a more important role in biofilm formation than the thermodynamic interaction, expressed as free energy of adhesion (G), between the support material and the biomass. The support that presented the highest biofilm accumulation per unit of surface area (DupUM) was used in a 28 L SBBR and it was observed that, along a typical SBBR cycle, time profiles of nitrogen compounds showed the typical behaviour of nitrification and denitrification reactions. During the fill phase (without aeration) acetate was simultaneously consumed in biomass growth and denitrification. Immediately after the beginning of the aeration phase (without influent addition), acetate was depleted from the liquid phase and stored as poly-ß-hydroxybutyrate that was later on used in the growth of biomass, owing to the high oxygen concentration in the reactor.
TypeArticle
URIhttp://hdl.handle.net/1822/16604
DOI10.1080/09593330.2010.528043
ISSN0959-3330
1479-487X
Publisher versionhttp://dx.doi.org/10.1080/09593330.2010.528043
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

Files in This Item:
File Description SizeFormat 
09593330.2010.pdf
  Restricted access
556,88 kBAdobe PDFView/Open    Request a copy!

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID