Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Effects of pH on the growth, total nitrogen, total phosphorus and organic compound removal in heterotrophic culture of Chlorella sorokiniana applied wastewater treatment

pH와 탄소원이 Chlorella sorokiniana의 heterotrophic 배양 및 하폐수고도처리능에 미치는 영향

  • Park, Jeong-Eun (Department of Environmental Science and Engineering, Center for Environmental Studies, Kyung Hee University) ;
  • Cho, Yong-Beom (Department of Environmental Science and Engineering, Center for Environmental Studies, Kyung Hee University) ;
  • Zhang, Shan (Department of Environmental Science and Engineering, Center for Environmental Studies, Kyung Hee University) ;
  • Hwang, Sun-Jin (Department of Environmental Science and Engineering, Center for Environmental Studies, Kyung Hee University)
  • Received : 2013.11.19
  • Accepted : 2013.12.02
  • Published : 2013.12.15
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Abstract

Among many microalgae cultivation types, heterotrophic culture with low cost carbon sources and energy saving culture method is crucial. A result of estimating the effects of pH on wastewater treatment using heterotrophic growing microalgae Chlorella sorokiniana shows that there was no difference in microalgae growth amount and nitrogen, phosphorus removal rate by wide range of pH(5 ~ 9). From pH 5 to 9, total nitrogen, phosphorous and glucose removal rates were 10.5 mg-N/L/d, 2 mg-P/L/d, 800 ~ 1000 mg/L respectively. This study reveals that C. sorokiniana cannot metabolite glycerol heterotrophically, however, glucose and acetate were proper carbon sources for growth and T-N, T-P and TOC removal. This research highlights the potential of heterotrophic microalgal growth with wastewater treatment plant with wide range of pH and carbon sources.

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