TY - JOUR
T1 - Effect of cyclic oxygen exposure on the activity of denitrifying phosphorus removing bacteria
AU - Kuba, T.
AU - Van Loosdrecht, M. C.M.
AU - Heijnen, J. J.
N1 - Funding Information:
This research was financially supported in part by the Netherlands Agency for the Environment and Energy (NOYEM, 35123011110) and the Foundation for Water Research (STOWA) within the fram~work of the programme Future Treatment Techniques for Municipal Waste Water (RWZI 2000-3234/5). Smcere thanks go to Stef van Hateren, Cor Ras, Dick Reuvers, Gert v. d. Steen and Max Zomerdijk for analyses of the samples, and to Peter Kroon and Sjaak Lispet for technical assistance in the experimental set-up.
PY - 1996
Y1 - 1996
N2 - The effect of oxygen on the activity of denitrifying phosphorus removing bacteria has been studied. Denitrifying phosphorus removing bacteria were enriched without oxygen in an anaerobic-anoxic SBR (sequencing batch reactor) over a long time, after which an aerobic phase was introduced into the SBR. The performance on phosphorus and nitrogen removal was examined for an anaerobic-aerobic-anoxic SBR. It could be concluded that oxygen has no detrimental effect on the denitrifying dephosphatation activity. The maximum phosphorus uptake rate by the enriched denitrifying sludge was almost equal for anoxic and aerobic conditions, and the anoxic phosphorus removal activity was kept within at least 5 months after the introduction of the aerobic phase. From the experiments it followed that the advantage of applying denitrifying phosphorus removing bacteria can only be obtained in a pre-denitrification process like the UCT-type of process.
AB - The effect of oxygen on the activity of denitrifying phosphorus removing bacteria has been studied. Denitrifying phosphorus removing bacteria were enriched without oxygen in an anaerobic-anoxic SBR (sequencing batch reactor) over a long time, after which an aerobic phase was introduced into the SBR. The performance on phosphorus and nitrogen removal was examined for an anaerobic-aerobic-anoxic SBR. It could be concluded that oxygen has no detrimental effect on the denitrifying dephosphatation activity. The maximum phosphorus uptake rate by the enriched denitrifying sludge was almost equal for anoxic and aerobic conditions, and the anoxic phosphorus removal activity was kept within at least 5 months after the introduction of the aerobic phase. From the experiments it followed that the advantage of applying denitrifying phosphorus removing bacteria can only be obtained in a pre-denitrification process like the UCT-type of process.
UR - http://www.scopus.com/inward/record.url?scp=0029846639&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029846639&partnerID=8YFLogxK
U2 - 10.1016/0273-1223(96)00492-1
DO - 10.1016/0273-1223(96)00492-1
M3 - Conference article
AN - SCOPUS:0029846639
VL - 34
SP - 33
EP - 40
JO - Water Science and Technology
JF - Water Science and Technology
SN - 0273-1223
IS - 1-2 -2 pt 1
T2 - Proceedings of the 1996 18th Biennial Conference of the International Association on Water Quality. Part 1
Y2 - 23 June 1996 through 28 June 1996
ER -