Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Preparation of Nitrifier Immobilized PVA(Polyvinyl Alcohol) Bead and Removal of Ammonia Nitrogen

질화세균군이 고정화된 PVP(Polyvinyl Alcohol) bead 제조 및 암모니아성 질소 제거

  • 서근학 (부경대학교 화학공학과) ;
  • 조진구 (부경대학교 화학공학과)
  • Published : 2001.06.01
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Abstract

Immobilized nitrifier bead in airlift bioreactor were used to remove high levels of ammonia nitrogen from synthetic wastewater. Polyvinylalcohol(PVA) bead for immmobilization of nitrifier consortium were prepared by PVA-boric acid method by varying concentration of PVA and nitrifier consortium. By determining viscosity, sphercity and tailing, the characteristics of prepared beads were investigated and the continous immobilization process was developed. Synthetic wastewater containg 25g/$\textrm{m}^3$ of ammonia nitrogen could be treated within 0.5 hour and the highest removal rate of ammonia nitrogen was 934.2g/$\textrm{m}^3{\cdot}$ day.

Keywords

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