Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Effects of light irradiation interval on the metabolism of nitrogen, phosporus and growth rate of Chlorella vulgaris

광 조사 간격이 Chlorella vulgaris의 성장량 및 질소, 인 대사에 미치는 영향

  • Hwang, Hyeon-Jeong (Department of Environmental Science & Engineering, Kyung Hee University) ;
  • Hwang, Sun-Jin (Department of Environmental Science & Engineering, Kyung Hee University)
  • 황현정 (경희대학교 공과대학 환경학 및 환경공학과) ;
  • 황선진 (경희대학교 공과대학 환경학 및 환경공학과)
  • Received : 2017.09.11
  • Accepted : 2017.09.28
  • Published : 2017.10.31
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Abstract

This study aimed to investigate growth rate and nutrient consumption of Chlorella vulgaris according to different light irradiation interval. Applied light irradiation intervals were 12 hr, 4 hr, 1 hr, and 1 min. The light source was flexible LED(Blue:Red=1:1), light intensity was 200 PPFD and Light/Dark cycle was 1:1. As a result, growth rate and nutrient removal efficiencies showed no significant differences depending on the light irradiation interval. Considering the reproduction characteristics of applied microalgae cultures of this study, this is thought to be one of the possible reasons of above results. Because Chlorella vulgaris performs an asexual reproduction and it is known that there is no significant relationship between light irradiation interval and growth rate, including nutrient consumption in case of asexual reproduction.

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References

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