PMID- 22097033
OWN - NLM
STAT- MEDLINE
DCOM- 20111206
LR  - 20190918
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 64
IP  - 3
DP  - 2011
TI  - Models for nitrification process design: one or two AOB populations?
PG  - 568-78
AB  - Models for engineering design of nitrifying systems use one ammonia oxidizer 
      biomass (AOB) state variable. A simple extension using two AOB populations allows 
      a more accurate prediction of nitrification systems at switching process 
      environments. These two AOB subpopulations are characterized by two different 
      sets of kinetic parameters. Selection pressure and competition between the two 
      functional AOB populations are determined by process conditions as demonstrated 
      by three case studies: Case study I describes dynamics of two AOB populations 
      showing different temperature sensitivities (modified Arrhenius term on growth 
      and decay) when bioaugmented from the warm sidestream treatment environment to 
      the cold mainstream and vice-versa. Case study II investigates competition 
      between fast growing micro-strategists and k-strategists adjusted to low ammonia 
      levels depending on the internal mixed liquor recycle rate (IMLR). Case study III 
      shows that AOB transferred from the waste activated sludge of an SBR to the 
      parallel continuous flow system with different decay kinetics can overgrow or 
      coexist with the original population.
FAU - Wett, B
AU  - Wett B
AD  - ARAconsult, Unterbergerstr.1, A-6020 Innsbruck, Austria. wett@araconsult.at
FAU - Jimenez, J A
AU  - Jimenez JA
FAU - Takacs, I
AU  - Takacs I
FAU - Murthy, S
AU  - Murthy S
FAU - Bratby, J R
AU  - Bratby JR
FAU - Holm, N C
AU  - Holm NC
FAU - Ronner-Holm, S G E
AU  - Ronner-Holm SG
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
SB  - IM
MH  - *Models, Theoretical
MH  - *Nitrification
EDAT- 2011/11/22 06:00
MHDA- 2011/12/13 00:00
CRDT- 2011/11/22 06:00
PHST- 2011/11/22 06:00 [entrez]
PHST- 2011/11/22 06:00 [pubmed]
PHST- 2011/12/13 00:00 [medline]
AID - 10.2166/wst.2011.499 [doi]
PST - ppublish
SO  - Water Sci Technol. 2011;64(3):568-78. doi: 10.2166/wst.2011.499.