Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Nitrogen Removal from a mixed Industrial Wastewater using Food-Waste Leachate and Sugar Liquid Waste as External Carbon Sources: Full-Scale Experiment

혼합 산업폐수의 질소제거를 위한 외부 탄소원 투입과 물질수지: 실증실험

  • Lee, Monghak (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Ahn, Johwan (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Lee, Junghun (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Bae, Wookeun (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Shim, Hojae (Department of Civil and Environmental Engineering, University of Macau)
  • 이몽학 (한양대학교 건설환경공학과) ;
  • 안조환 (한양대학교 건설환경공학과) ;
  • 이정훈 (한양대학교 건설환경공학과) ;
  • 배우근 (한양대학교 건설환경공학과) ;
  • 심호재 (마카오대학교 토목환경공학과)
  • Published : 2012.09.30
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Abstract

The feasibility of enhancing biological nutrient removal from an industrial wastewater was tested with food waste leachate and sugar liquid waste as external carbon sources. Long term influences of adding external carbon sources were investigated to see how the biological nutrient removal process worked in terms of the removal efficiency. The addition of the external carbons led to a significant improvement in the removal efficiency of nutrients: from 49% to approximately 76% for nitrogen and from 64% to around 80% for phosphorus. Approximately, 20% of the removal nitrogen was synthesized into biomass, while the remaining 80% was denitrified. Though the addition of external carbon sources improved nutrient removal, it also increased the waste sludge production substantially. The optimal observed BOD/TN ratio, based on nitrogen removal and sludge production, was around 4.0 in this study.

Keywords

References

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