Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Effects of acetate in food waste leachate on cell growth and nitrogen, phosphorus consumption by Chlorella vulgaris

음폐수 소화액에 포함된 acetate가 Chlorella vulgaris의 성장 및 질소, 인 제거에 미치는 영향

  • Zhang, Shan (Department of Environmental Engineering, Center for Environmental Studies, Kyung Hee University) ;
  • Choi, Kyoung Jin (Department of Environmental Engineering, Center for Environmental Studies, Kyung Hee University) ;
  • Lee, SeokMin (Department of Environmental Engineering, Center for Environmental Studies, Kyung Hee University) ;
  • Joo, Sung-Jin (Department of Environmental Engineering, Center for Environmental Studies, Kyung Hee University) ;
  • Han, Thi-Hiep (Department of Environmental Engineering, Center for Environmental Studies, Kyung Hee University) ;
  • Hwang, Sun-Jin (Department of Environmental Engineering, Center for Environmental Studies, Kyung Hee University)
  • 장산 (경희대학교 환경공학과 환경연구센터) ;
  • 최경진 (경희대학교 환경공학과 환경연구센터) ;
  • 이석민 (경희대학교 환경공학과 환경연구센터) ;
  • 주성진 (경희대학교 환경공학과 환경연구센터) ;
  • 한티힙 (경희대학교 환경공학과 환경연구센터) ;
  • 황선진 (경희대학교 환경공학과 환경연구센터)
  • Received : 2014.08.12
  • Accepted : 2014.10.10
  • Published : 2014.10.15
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Abstract

VFAs like acetate are the major soluble metabolites of food waste leachates after digested. Therefore this study investigates the effect of acetate on growth rate and nutrient removal efficiency of Chlorella vulgaris to treat digested food waste leachates. The initial acetate concentration varied from 0 to 20 mM. As a result, Chlorella vulgaris growth rate was increased as high as the concentrations ranged from 0 to 20 mM. The same trend was observed with $NH_4$-N and $PO_4$-P consumption. The highest growth rate and the highest $NH_4$-N, $PO_4$-P removal rate were observed at acetate concentration of 20 mM. The microalgae growth rate and $NH_4$-N, $PO_4$-P removal rates were 1.5, 1.8, 2.3 times higher than the condition without acetate.

Keywords

References

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