Details
| Original language | English |
|---|---|
| Pages (from-to) | 189-193 |
| Number of pages | 5 |
| Journal | Water science and technology |
| Volume | 37 |
| Issue number | 4-5 |
| Publication status | Published - 1998 |
| Event | 1997 2nd International Conference on Microorganisms in Activated Sludge and Biofilm Processes - Berkeley, CA, USA Duration: 21 Jul 1997 → 23 Jul 1997 |
Abstract
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 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.
Keywords
- Biofilm, Biological oxygen monitor, Circulating bed reactor, Kinetics, Nitrification, Oxygen
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Engineering
- Environmental Science(all)
- Water Science and Technology
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Water science and technology, Vol. 37, No. 4-5, 1998, p. 189-193.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Influence of dissolved oxygen on nitrification kinetics in a circulating bed reactor
AU - Lazarova, V.
AU - Nogueira, Regina
AU - Manem, J.
AU - Melo, L.
PY - 1998
Y1 - 1998
N2 - 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 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.
AB - 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 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.
KW - Biofilm
KW - Biological oxygen monitor
KW - Circulating bed reactor
KW - Kinetics
KW - Nitrification
KW - Oxygen
UR - http://www.scopus.com/inward/record.url?scp=0031859974&partnerID=8YFLogxK
U2 - 10.1016/S0273-1223(98)00103-6
DO - 10.1016/S0273-1223(98)00103-6
M3 - Conference article
AN - SCOPUS:0031859974
VL - 37
SP - 189
EP - 193
JO - Water science and technology
JF - Water science and technology
SN - 0273-1223
IS - 4-5
T2 - 1997 2nd International Conference on Microorganisms in Activated Sludge and Biofilm Processes
Y2 - 21 July 1997 through 23 July 1997
ER -