volume 40, issue 9, P1836-1840 2006
DOI: 10.1016/j.watres.2006.03.002
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Véronique Laurin, Normand Labbé, Pierre Juteau, Serge Parent, Richard Villemur

Abstract: The Montreal Biodome has a denitrification system to stabilize the nitrate concentration in its 3 million liter seawater aquarium. However, this microbial process has failed periodically due to various technical problems. The system can take several weeks to recover its full denitrification capacity. In order to provide the denitrification system with a backup of active biomass, different freezing conditions for the denitrifying biomass were tested. The biomass was conserved for 1 week-17 months at -20 degrees…

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