PMID- 17169397
OWN - NLM
STAT- MEDLINE
DCOM- 20070312
LR  - 20061225
IS  - 0043-1354 (Print)
IS  - 0043-1354 (Linking)
VI  - 41
IP  - 2
DP  - 2007 Jan
TI  - Inorganic carbon limitations on nitrification: experimental assessment and 
      modelling.
PG  - 277-86
AB  - Nitrification is a two-step process that involves two different biomass 
      populations: ammonia oxidising biomass (AOB) and nitrite oxidising biomass (NOB). 
      Both populations are autotrophic (i.e. their carbon source is inorganic). 
      Therefore, a deficit of this substrate should result in a decrease of the process 
      rate. Recent technology advances such as the SHARON process have brought new 
      scenarios in biological nitrogen removal where these limitations should be 
      considered. Hence, this work examines the inorganic carbon limitation using 
      respirometric and titrimetric techniques. For this aim, the nitrification rate 
      was measured at different total inorganic carbon (TIC) concentrations. The 
      experimental results obtained show that AOB was limited at TIC concentrations 
      lower than 3mmol CL(-1). At the same time, no carbon source limitation for NOB 
      was observed in spite of the low TIC concentrations attained (lower than 0.1mmol 
      CL(-1)). The AOB limitation could be successfully modelled using Monod, Tessier 
      and sigmoidal kinetics. The best fit was obtained with sigmoidal kinetics. 
      However, unexpected biomass activity (oxygen consumption) was observed despite a 
      very low TIC concentration (lower than 0.1mmol CL(-1)).
FAU - Guisasola, Albert
AU  - Guisasola A
AD  - Department of Chemical Engineering, ETSE, Universitat Autonoma de Barcelona, 
      08193 Bellaterra, Spain. Albert.Guisasola@uab.es
FAU - Petzet, Sebastian
AU  - Petzet S
FAU - Baeza, Juan A
AU  - Baeza JA
FAU - Carrera, Julian
AU  - Carrera J
FAU - Lafuente, Javier
AU  - Lafuente J
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20061213
PL  - England
TA  - Water Res
JT  - Water research
JID - 0105072
RN  - 0 (Carbon Compounds, Inorganic)
RN  - 0 (Nitrates)
RN  - 0 (Quaternary Ammonium Compounds)
SB  - IM
MH  - *Biodegradation, Environmental
MH  - Biomass
MH  - Bioreactors/microbiology
MH  - Carbon Compounds, Inorganic/analysis/*metabolism
MH  - Fresh Water/microbiology
MH  - Nitrates/*metabolism
MH  - Oxidation-Reduction
MH  - Quaternary Ammonium Compounds/*metabolism
MH  - Titrimetry
MH  - Waste Disposal, Fluid/*methods
MH  - Water Purification/*methods
EDAT- 2006/12/16 09:00
MHDA- 2007/03/14 09:00
CRDT- 2006/12/16 09:00
PHST- 2005/09/06 00:00 [received]
PHST- 2006/08/03 00:00 [revised]
PHST- 2006/10/30 00:00 [accepted]
PHST- 2006/12/16 09:00 [pubmed]
PHST- 2007/03/14 09:00 [medline]
PHST- 2006/12/16 09:00 [entrez]
AID - S0043-1354(06)00588-4 [pii]
AID - 10.1016/j.watres.2006.10.030 [doi]
PST - ppublish
SO  - Water Res. 2007 Jan;41(2):277-86. doi: 10.1016/j.watres.2006.10.030. Epub 2006 
      Dec 13.