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Measurement of ammonium concentration and nitrification rate by a new titrimetric biosensor

Alessandro Massone, Krist Gernaey, Alberto Rozzi and Willy Verstraete UGent (1998) WATER ENVIRONMENT RESEARCH. 70(3). p.343-350
abstract
Nitrifiers are more sensitive than heterotrophic bacteria to environmental changes (such as temperature, pH, shock loads as biological oxygen demand or nitrogen, and toxic/inhibiting loads). Moreover, they are slow-growing bacteria. Thus, a careful control of their activity is needed to achieve continuous good effluent quality. To maintain an actively nitrifying population, efficient process control requires monitoring of the toxicity and the ammonium concentration. The latter is commonly measured by on-line ammonium analyzers. A new sensor has been developed to measure both the ammonia nitrogen (NH4+-N) content in the mixed liquor and the activity of the nitrifiers. The operating principle of the biosensor is based on a titration method, which measures the protons produced during nitrification. This paper describes the biosensor and the experimental results (estimation of NH4+-N concentration and nitrification rate) obtained using activated sludge from wastewater treatment plants receiving hospital and food industry effluents. The influence of changes in operational factors such as pH, temperature, and bicarbonate alkalinity on the measurements has been examined. The potential applications of the system as an on-line biosensor are outlined.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
titration, nitrification, pH, ammonium, kinetics, bio-sensors, process control, ACTIVATED-SLUDGE PROCESS, TEMPERATURE, REMOVAL, PH
journal title
WATER ENVIRONMENT RESEARCH
Water Environ. Res.
volume
70
issue
3
pages
343-350 pages
Web of Science type
Article
Web of Science id
000073677300012
ISSN
1061-4303
DOI
10.2175/106143098X124975
language
English
UGent publication?
yes
classification
A1
id
178162
handle
http://hdl.handle.net/1854/LU-178162
date created
2004-01-14 13:41:00
date last changed
2016-12-19 15:38:59
@article{178162,
  abstract     = {Nitrifiers are more sensitive than heterotrophic bacteria to environmental changes (such as temperature, pH, shock loads as biological oxygen demand or nitrogen, and toxic/inhibiting loads). Moreover, they are slow-growing bacteria. Thus, a careful control of their activity is needed to achieve continuous good effluent quality. To maintain an actively nitrifying population, efficient process control requires monitoring of the toxicity and the ammonium concentration. The latter is commonly measured by on-line ammonium analyzers. A new sensor has been developed to measure both the ammonia nitrogen (NH4+-N) content in the mixed liquor and the activity of the nitrifiers. The operating principle of the biosensor is based on a titration method, which measures the protons produced during nitrification. This paper describes the biosensor and the experimental results (estimation of NH4+-N concentration and nitrification rate) obtained using activated sludge from wastewater treatment plants receiving hospital and food industry effluents. The influence of changes in operational factors such as pH, temperature, and bicarbonate alkalinity on the measurements has been examined. The potential applications of the system as an on-line biosensor are outlined.},
  author       = {Massone, Alessandro and Gernaey, Krist and Rozzi, Alberto and Verstraete, Willy},
  issn         = {1061-4303},
  journal      = {WATER ENVIRONMENT RESEARCH},
  keyword      = {titration,nitrification,pH,ammonium,kinetics,bio-sensors,process control,ACTIVATED-SLUDGE PROCESS,TEMPERATURE,REMOVAL,PH},
  language     = {eng},
  number       = {3},
  pages        = {343--350},
  title        = {Measurement of ammonium concentration and nitrification rate by a new titrimetric biosensor},
  url          = {http://dx.doi.org/10.2175/106143098X124975},
  volume       = {70},
  year         = {1998},
}

Chicago
Massone, Alessandro, Krist Gernaey, Alberto Rozzi, and Willy Verstraete. 1998. “Measurement of Ammonium Concentration and Nitrification Rate by a New Titrimetric Biosensor.” Water Environment Research 70 (3): 343–350.
APA
Massone, A., Gernaey, K., Rozzi, A., & Verstraete, W. (1998). Measurement of ammonium concentration and nitrification rate by a new titrimetric biosensor. WATER ENVIRONMENT RESEARCH, 70(3), 343–350.
Vancouver
1.
Massone A, Gernaey K, Rozzi A, Verstraete W. Measurement of ammonium concentration and nitrification rate by a new titrimetric biosensor. WATER ENVIRONMENT RESEARCH. 1998;70(3):343–50.
MLA
Massone, Alessandro, Krist Gernaey, Alberto Rozzi, et al. “Measurement of Ammonium Concentration and Nitrification Rate by a New Titrimetric Biosensor.” WATER ENVIRONMENT RESEARCH 70.3 (1998): 343–350. Print.