Simultaneous Nitrification and Dennrincation of Recirculating Aquaculture Water by Biofilter Reactor

생물막 여과 반응기를 이용한 양어장 순환수의 동시 질산화 및 탈질산화 반응

  • Lee, Min-Gyu (Dept.of Chemical Engineering, Pukyong National University) ;
  • Suh, Kuen-Hack (Dept.of Chemical Engineering, Pukyong National University) ;
  • Oh, Yung-Hee (Dept. of Chemistry, Dongeui University)
  • Published : 1997.08.01


In order to Investigate the possibility as a simple technique of wastewater treatment for recirculating aquaculture system, the experiment by a biofilter unfit was carried out. The high and stable removal efficiency of nitrogen could be obtained by selecting the optimum recycle ratio and DO concentration. It was found that the proper combination of nitrifacation and denitrfication step in the reactor would be required for increasing the removal efficiency. The extent of nitrogen removal gradually decreased UO the rise of re- cycle ratio since the depression of denitrificatlon by the lack of hydrogen donor. The depression of nitrogen removal was overcome by increasing the CIN ratio In the wastewater. The extent of phosphorus removal was increased slightly with the increase of DO concentration and recycle ratio, but high removal efficiency was not observed. However, the extent of COD removal was not affected by recycle ratio and DO concentration and showed the stable removal of above 90%.



  1. J. WPCF v.46 Evaluation of a rotating disk wastewater treatment plant Antonie, R.L.;D.L. Kluge;J. H. Mielke
  2. Standard methods for the examination of water and wastewater(17th ed.) APHA;AWWA;WPCF
  3. Sewage Works Journal v.1 no.5 Results of operation of experimental contact filter with partially submerged rotating plates Dorman, J.
  4. Aquacultural Engineering v.3 Rapid start-up of a biological filter in a recirculating aquaculture system containing channel catfish Carmignani, G.M.;J.P. Bennelt
  5. Quality criteria for water EPA(Environmental Protection Agency)
  6. Trans. Am. Fish. Soc. v.107 Use of hydroponecs to maintain quality of recirculating water in fish culture system Lewis, W.H.;J.H. Yopp;Schramm;A.M. Brandenberg
  7. Advances in Aquaculture Fish culture in a recirculating system with water treatment by activated sludge Meske, C.H.;T.V.R. Pillay(ed.);W.A. Dill(ed.)
  8. J. Aquaculture Fixed film nitrification characteristics in seawater recirculating fish culture system Nijhof, M.;J. Bonverdeur
  9. Fish Hatchery Management Piper, R.G.;I.B. McElwain;L.E. Orme;J.P. McCaren;L.G. Fowler;J.R. Lionard
  10. Aquaculture Engineering v.4 Ammonia removal in selected aquaculture water reuse biofilters Roger, G.L.;S.L. Klemetson