Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/1583

TitleInfluence of dissolved oxygen on nitrification kinetics in a circulating bed reactor
Author(s)Lazarova, V.
Nogueira, R.
Manem, J.
Melo, L. F.
KeywordsNitrification
Biofilm
Kinetics
Oxygen
Circulating bed reactor
Biological oxygen monitor
Issue date1998
PublisherElsevier
JournalWater science & technology
Citation"Water science & technology". ISSN 0273-1223. 37:4/5 (1998) 189-193.
Abstract(s)The influence of dissolved oxygen concentration in nitrification kinetics was studied in a new biofilm reactor, the circulating bed reactor (CBR). The study was carried out partly at laboratory scale with synthetic water containing inorganic carbon and nitrogen compounds, and partly at pilot scale for secondary and tertiary nitrification of municipal wastewater. The experimental results showed that either the ammonia or the oxygen concentration could be limiting for the nitrification rate. The transition from the ammonia to oxygen limiting conditions occurred for an oxygen to ammonia concentration ratio of about 1.5-2 gO2/gN-NH4+ for both laboratory- and pilot-scale reactors. The nitrification kinetics of the laboratory-scale reactor was close to a half-order function of the oxygen concentration, when oxygen was the rate limiting substrate.
TypeArticle
URIhttps://hdl.handle.net/1822/1583
DOI10.1016/S0273-1223(98)00103-6
ISSN0273-1223
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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