상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제26권6호
  • /
  • Pages.833-840
  • /
  • 2012
  • /
  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
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질소원 및 pH 조절빈도에 따른 Chlorella vulgaris의 성장특성 및 하수고도처리능 평가

Growth and N, P removal efficiency of Chlorella vulgaris according to the nitrogen sources and pH condition

  • 한수현 (경희대학교 공과대학 환경공학과) ;
  • 김선진 (경희대학교 공과대학 환경공학과) ;
  • 김태형 (경희대학교 공과대학 환경공학과) ;
  • 조기주 (경희대학교 공과대학 환경공학과) ;
  • 이윤희 (경희대학교 공과대학 환경공학과) ;
  • 황선진 (경희대학교 공과대학 환경공학과)
  • Han, Su-Hyun (Department of Environmental Science and Engineering, Kyung Hee University) ;
  • Kim, Sun-Jin (Department of Environmental Science and Engineering, Kyung Hee University) ;
  • Kim, Tae-Hyeong (Department of Environmental Science and Engineering, Kyung Hee University) ;
  • Cho, Ki-Ju (Department of Environmental Science and Engineering, Kyung Hee University) ;
  • Lee, Yunhee (Department of Environmental Science and Engineering, Kyung Hee University) ;
  • Hwang, Sun-Jin (Department of Environmental Science and Engineering, Kyung Hee University)
  • 투고 : 2012.10.23
  • 심사 : 2012.12.05
  • 발행 : 2012.12.15
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초록

This study aimed to investigate growth rate and nutrient removal efficiency of Chlorella vulgaris according to nitrogen sources and frequency of pH adjustment. Nitrogen and phosphorus removal efficiencies were evaluated in the three different conditions using $NO_3{^-}$, $NH_4{^+}$ as a sole nitrogen source and mixed condition. Initial nutrient concentrations in artificial wastewater were 30 mg-N/L and 3 mg-P/L similar to secondary wastewater effluent. When nitrogen source was $NO_3{^-}$, there was no inhibition on the growth of C. vulgaris with adjusting pH every 24 hr while growth inhibition occurred with $NH_4{^+}$ caused by pH drop. N, P removal efficiencies were no significant depending on the nitrogen sources. As pH was adjusted to 7 by pH-stat, growth rate and nutrient removal efficiencies were increased compared to adjusting pH every 24 hr, however, growth rate and nutrient removal efficiencies were no significant depending on the nitrogen sources.

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