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http://dx.doi.org/10.5657/kfas.2003.36.6.661

Treatment of Recirculating Aquacultural Water by an Airlift Bioreactor Containing Immobilized Microorganisms  

SUH Kuen-Hack (Department of Chemical Engineering, Pukyong National University)
KIM Byong-Jin (Busan Bio-Industry Support Center, Busan Technopark)
KIM Sung-Koo (Department of Biotechnology and Bioengineering, Pukyong National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.36, no.6, 2003 , pp. 661-668 More about this Journal
Abstract
Performance of an airlift bioreactor (ABR) containing the immobilized microorganisms was evaluated in an integrated pilot scale recirculating aquaculture system stocked with Nile tilapia (Oreochromis niloticus) at an initial rearing density of $5\%$ and compared to a rotating biological contactor (RBC) for 40 days. The TAN concentration of rearing tank for ABR and RBC were maintained at $0.4\;g/m^3$ and $0.5\;g/m^3,$ respectively, The nitrite nitrogen was completely removed by the ABR. The ABR's aeration was more stable than the RBC's. On the whole, the feasibility of ABR as an aquacultural water treatment unit was recognized.
Keywords
Airlift bioreactor; Immobilized microorganisms; RBC; Recirculating aquaculture system; Oreochromis niloticus;
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