Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Treatment of Recirculating Aquacultural Water by an Airlift Bioreactor Containing Immobilized Microorganisms

고정화 미생물을 이용한 공기 부상식 생물반응기에 의한 순환 여과식 양어장의 순환수 처리

  • 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)
  • Published : 2003.12.01
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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.

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References

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