A Simultaneous Denitrification and Fermentation Process for Nitrate Removal in a Whiteleg Shrimp (Litopenaeus vannamei) Recirculating Aquaculture System: Using Endogenous Carbon from a Biofilm
Yayuan Li,
Shimin Lu,
Wang Zhang
et al.
Abstract:During the process of circulating aquaculture, high concentrations of nitrate will accumulate. A simultaneous denitrification and fermentation process is described to remove nitrate from a recirculating aquaculture system using endogenous carbon on a biofilm. 15N isotope technology was used to assess the nitrate removal, mainly through heterotrophic denitrification. The nitrate removal rate could be as high as 98.97%, with a final concentration of nitrate below 1 mg/L. The denitrification process obeys a Micha… Show more
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