Rijn, J. van and Sich, H. (1992) Nitrite Accumulation by denitrifiers isolated from fluidized Bed Reactors operated in an Aquaculture Unit. EAS Special Publication, 17 . pp. 39-54.

Text Proceedings of the 4th German-Israeli Status Seminar. B. Moav, V. Bilge, and H..pdf - Reprinted Version Download (1MB)

Abstract

In fluidized bed rnactors, applled for nitrate removal in an aquaculture unit, denitrificatlon of nitrate was found to result in an accumulation of nitrite.
Isolation of denltrifylng bacteria from these reactors revealed that most of these
isolates produced nitrite from nitrate under controlled laboratory. conditions. Two of
the isolates, one with accumulated nitrite while respiring on nitrate, and the other
not, were subject to further studies. It was found that nitrite accumulation in one
of these isolates could be adequately explained by differences in the relative rates
of nitrate and nitrite reduction. Inhibiting concentrations of nitrite were lower for
the isolate which did not accumulate nitrite. Incubation of the nitrite-accumulating
isolate with different carbon sources resulted ln differences in the relative nitrite
accumulation (as compared with the runount of nitrate reduced.

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