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Construction, start-up and operation of a continuously aerated laboratory-scale SHARON reactor in view of coupling with an Anammox reactor

(2005) WATER SA. 31(3). p.327-334
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Abstract
In this study practical experiences during start-up and operation of a laboratory-scale SHARON reactor are discussed, along with the construction of the reactor. Special attention is given to the start-up in view of possible toxic effects of high nitrogen concentrations (up to 4 000 mgN(.)l(-1)) on the nitrifier population and because the reactor was inoculated with sludge from an SBR reactor operated under completely different conditions. Because of these considerations, the reactor was first operated as an SBR to prevent biomass washout and to allow the selection of a strong nitrifying population. A month after the inoculation the reactor was switched to normal chemostat operation. As a result the nitrite oxidisers were washed out and only the ammonium oxidisers persisted in the reactor. In this contribution also some practical considerations concerning the operation of a continuously aerated SHARON reactor, such as mixing, evaporation and wall growth are discussed. These considerations are not trivial, since the reactor will be used for kinetic characterisation and modelling studies. Finally the performance of the SHARON reactor under different conditions is discussed in view of its coupling with an Anammox unit. Full nitrification was proven to be feasible for nitrogen loads up to 1.5 gTAN-N(.)l(-1.)d(-1), indicating the possibility of the SHARON process to treat highly loaded nitrogen streams. Applying different influent concentrations led to different effluent characteristics indicating the need for proper control of the SHARON reactor.
Keywords
MEMBRANE-ASSISTED BIOREACTOR, start-up, nitrification, control, PARTIAL NITRITATION, WASTE-WATER, NITROGEN REMOVAL, SHARON, NITRIFICATION

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MLA
Van Hulle, Stijn et al. “Construction, Start-up and Operation of a Continuously Aerated Laboratory-scale SHARON Reactor in View of Coupling with an Anammox Reactor.” WATER SA 31.3 (2005): 327–334. Print.
APA
Van Hulle, Stijn, Van den Broeck, S., Maertens, J., Villez, K., Donckels, B., Schelstraete, G., Volcke, E., et al. (2005). Construction, start-up and operation of a continuously aerated laboratory-scale SHARON reactor in view of coupling with an Anammox reactor. WATER SA, 31(3), 327–334.
Chicago author-date
Van Hulle, Stijn, S Van den Broeck, Jo Maertens, Kris Villez, Brecht Donckels, Griet Schelstraete, Eveline Volcke, and Peter A Vanrolleghem. 2005. “Construction, Start-up and Operation of a Continuously Aerated Laboratory-scale SHARON Reactor in View of Coupling with an Anammox Reactor.” Water Sa 31 (3): 327–334.
Chicago author-date (all authors)
Van Hulle, Stijn, S Van den Broeck, Jo Maertens, Kris Villez, Brecht Donckels, Griet Schelstraete, Eveline Volcke, and Peter A Vanrolleghem. 2005. “Construction, Start-up and Operation of a Continuously Aerated Laboratory-scale SHARON Reactor in View of Coupling with an Anammox Reactor.” Water Sa 31 (3): 327–334.
Vancouver
1.
Van Hulle S, Van den Broeck S, Maertens J, Villez K, Donckels B, Schelstraete G, et al. Construction, start-up and operation of a continuously aerated laboratory-scale SHARON reactor in view of coupling with an Anammox reactor. WATER SA. 2005;31(3):327–34.
IEEE
[1]
S. Van Hulle et al., “Construction, start-up and operation of a continuously aerated laboratory-scale SHARON reactor in view of coupling with an Anammox reactor,” WATER SA, vol. 31, no. 3, pp. 327–334, 2005.
@article{350433,
  abstract     = {In this study practical experiences during start-up and operation of a laboratory-scale SHARON reactor are discussed, along with the construction of the reactor. Special attention is given to the start-up in view of possible toxic effects of high nitrogen concentrations (up to 4 000 mgN(.)l(-1)) on the nitrifier population and because the reactor was inoculated with sludge from an SBR reactor operated under completely different conditions. Because of these considerations, the reactor was first operated as an SBR to prevent biomass washout and to allow the selection of a strong nitrifying population. A month after the inoculation the reactor was switched to normal chemostat operation. As a result the nitrite oxidisers were washed out and only the ammonium oxidisers persisted in the reactor.
In this contribution also some practical considerations concerning the operation of a continuously aerated SHARON reactor, such as mixing, evaporation and wall growth are discussed. These considerations are not trivial, since the reactor will be used for kinetic characterisation and modelling studies. Finally the performance of the SHARON reactor under different conditions is discussed in view of its coupling with an Anammox unit. Full nitrification was proven to be feasible for nitrogen loads up to 1.5 gTAN-N(.)l(-1.)d(-1), indicating the possibility of the SHARON process to treat highly loaded nitrogen streams. Applying different influent concentrations led to different effluent characteristics indicating the need for proper control of the SHARON reactor.},
  author       = {Van Hulle, Stijn and Van den Broeck, S and Maertens, Jo and Villez, Kris and Donckels, Brecht and Schelstraete, Griet and Volcke, Eveline and Vanrolleghem, Peter A},
  issn         = {0378-4738},
  journal      = {WATER SA},
  keywords     = {MEMBRANE-ASSISTED BIOREACTOR,start-up,nitrification,control,PARTIAL NITRITATION,WASTE-WATER,NITROGEN REMOVAL,SHARON,NITRIFICATION},
  language     = {eng},
  number       = {3},
  pages        = {327--334},
  title        = {Construction, start-up and operation of a continuously aerated laboratory-scale SHARON reactor in view of coupling with an Anammox reactor},
  volume       = {31},
  year         = {2005},
}

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