Nitrite (not free nitrous acid) is the main inhibitor of the anammox process at common pH conditions

Puyol D., Carvajal-Arroyo J.M., Sierra-Alvarez R. and Field J.A. (2014) Nitrite (not free nitrous acid) is the main inhibitor of the anammox process at common pH conditions. Biotechnology Letters, 36 3: 547-551. doi:10.1007/s10529-013-1397-x


Author Puyol D.
Carvajal-Arroyo J.M.
Sierra-Alvarez R.
Field J.A.
Title Nitrite (not free nitrous acid) is the main inhibitor of the anammox process at common pH conditions
Journal name Biotechnology Letters   Check publisher's open access policy
ISSN 1573-6776
0141-5492
Publication date 2014-03-01
Year available 2013
Sub-type Article (original research)
DOI 10.1007/s10529-013-1397-x
Open Access Status Not Open Access
Volume 36
Issue 3
Start page 547
End page 551
Total pages 5
Place of publication Dordrecht, Netherlands
Publisher Springer Netherlands
Language eng
Formatted abstract
Nitrite is a substrate but also an inhibitor of anaerobic ammonium oxidation (anammox).There is currently no consensus on whether ionized nitrite (INi) or free nitrous acid (FNA) is the actual inhibitor of the process. The inhibition by INi and FNA on the anammox process has been analysed using a wide range of INi and FNA concentrations and by altering the pH and total nitrite conditions. The inhibitory impacts of both species were quantified through a rational inhibition equation, considering INi and FNA as substrate inhibitor and non-competitive inhibitor, respectively. Inhibitory constants were calculated with strong statistical support as 561 mg INi-N l-1 and 0.117 mg FNA-N l-1. Based on the model, INi is the main inhibiting species of the anammox process at pH > 7.1, which are the most common conditions occurring in field applications of anammox.
Keyword Anaerobic ammonium oxidation
Anammox
Free nitrous acid
Inhibition
Kinetics
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
Advanced Water Management Centre Publications
 
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