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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [199611] |
Nitrogen removal from aquaculture pond water by heterotrophic nitrogen assimilation in lab-scale sequencing batch reactors
De Schryver, P.; Verstraete, W. (2009). Nitrogen removal from aquaculture pond water by heterotrophic nitrogen assimilation in lab-scale sequencing batch reactors. Bioresour. Technol. 100(3): 1162-1167. dx.doi.org/10.1016/j.biortech.2008.08.043
In: Bioresource Technology. Elsevier: Barking. ISSN 0960-8524; e-ISSN 1873-2976, meer
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| Trefwoorden |
Marien/Kust; Brak water; Zoet water |
| Author keywords |
Microbial protein; Fish culture; C/N ratio; Poly-beta-hydroxybutyrate;Bio-floc technology technique |
| Abstract |
The potential use of sequencing batch reactors (SBRs) as an alternative bio-flocs technology (BFT) approach in aquaculture was explored. One SBR was dosed with glycerol and one with acetate for the decrease of the nitrogen concentration in simulated aquaculture water by microbial assimilation. At an optimal C/N ratio between 10 and 15, the nitrogen removal efficiency reached up to 98% (= 110 mg N L-1 reactor day-1) for both SBRs. The estimated biomass productivity reached 0.62–0.94 g C L-1 reactor day-1 for the glycerol SBR and 0.54–0.82 g C L-1 reactor day-1 for the acetate SBR. The floc protein content, indicating biomass quality, reached up to 57% if grown on glycerol. With acetate, it attained a value of 61%. The highest average poly-ß-hydroxybutyrate (PHB) content was 16% on a dry weight basis for the acetate biomass. |
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