Effect of granule size on autotrophic nitrogen removal in a granular sludge reactor

E. I.P. Volcke; C. Picioreanu; B. De Baets; M. C.M. Van Loosdrecht

doi:10.1080/09593331003702746

Effect of granule size on autotrophic nitrogen removal in a granular sludge reactor

E. I.P. Volcke, C. Picioreanu, B. De Baets, M. C.M. Van Loosdrecht

Research output: Contribution to journal › Article › peer-review

126 Scopus citations

Abstract

Autotrophic nitrogen removal through sequential partial nitritation and anammox reactions can be achieved in biofilm reactors by controlling the oxygen concentration in the bulk liquid in such a way that nitrite oxidizers are outcompeted by anammox bacteria. In the case of granular sludge reactors, the granule size may influence the optimal range of oxygen concentration, as has been confirmed in the present study by means of numerical simulations. The range of oxygen concentrations for which combined partial nitritation and anammox conversion is established becomes broader for larger particles and with increasing influent ammonium concentrations. At the same time the likelihood of nitrite accumulation in the reactor effluent also increases. © 2010 Taylor & Francis.

Original language	English (US)
Pages (from-to)	1271-1280
Number of pages	10
Journal	Environmental Technology
Volume	31
Issue number	11
DOIs	https://doi.org/10.1080/09593331003702746
State	Published - Jan 1 2010
Externally published	Yes

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title = "Effect of granule size on autotrophic nitrogen removal in a granular sludge reactor",

abstract = "Autotrophic nitrogen removal through sequential partial nitritation and anammox reactions can be achieved in biofilm reactors by controlling the oxygen concentration in the bulk liquid in such a way that nitrite oxidizers are outcompeted by anammox bacteria. In the case of granular sludge reactors, the granule size may influence the optimal range of oxygen concentration, as has been confirmed in the present study by means of numerical simulations. The range of oxygen concentrations for which combined partial nitritation and anammox conversion is established becomes broader for larger particles and with increasing influent ammonium concentrations. At the same time the likelihood of nitrite accumulation in the reactor effluent also increases. {\textcopyright} 2010 Taylor & Francis.",

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AU - Volcke, E. I.P.

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AU - De Baets, B.

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N2 - Autotrophic nitrogen removal through sequential partial nitritation and anammox reactions can be achieved in biofilm reactors by controlling the oxygen concentration in the bulk liquid in such a way that nitrite oxidizers are outcompeted by anammox bacteria. In the case of granular sludge reactors, the granule size may influence the optimal range of oxygen concentration, as has been confirmed in the present study by means of numerical simulations. The range of oxygen concentrations for which combined partial nitritation and anammox conversion is established becomes broader for larger particles and with increasing influent ammonium concentrations. At the same time the likelihood of nitrite accumulation in the reactor effluent also increases. © 2010 Taylor & Francis.

AB - Autotrophic nitrogen removal through sequential partial nitritation and anammox reactions can be achieved in biofilm reactors by controlling the oxygen concentration in the bulk liquid in such a way that nitrite oxidizers are outcompeted by anammox bacteria. In the case of granular sludge reactors, the granule size may influence the optimal range of oxygen concentration, as has been confirmed in the present study by means of numerical simulations. The range of oxygen concentrations for which combined partial nitritation and anammox conversion is established becomes broader for larger particles and with increasing influent ammonium concentrations. At the same time the likelihood of nitrite accumulation in the reactor effluent also increases. © 2010 Taylor & Francis.

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Effect of granule size on autotrophic nitrogen removal in a granular sludge reactor

Abstract

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