Korean Journal of Microbiology (미생물학회지)

The Microbiological Society of Korea (한국미생물학회)
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The Effect of Microalgal Growth on Nutrient Sources Using Microalgal Small Scale Raceway Pond (SSRP) for Biodiesel Production

바이오디젤 생산을 위한 미세조류 옥외배양 시스템의 영양원에 따른 미세조류 성장 특성 비교

  • Kim, Dong-Ho (Sustainable Bioresource Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB)) ;
  • Kim, Byung-Hyuk (Sustainable Bioresource Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB)) ;
  • Choi, Jong-Eun (Sustainable Bioresource Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB)) ;
  • Kang, Zion (Green Chemistry and Environmental Biotechnology, University of Science and Technology (UST)) ;
  • Kim, Hee-Sik (Sustainable Bioresource Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB))
  • 김동호 (한국생명공학연구원 지속가능자원연구센터) ;
  • 김병혁 (한국생명공학연구원 지속가능자원연구센터) ;
  • 최종은 (한국생명공학연구원 지속가능자원연구센터) ;
  • 강시온 (한국과학기술원 생명화학공학과) ;
  • 김희식 (한국생명공학연구원 지속가능자원연구센터)
  • Received : 2014.11.10
  • Accepted : 2014.12.22
  • Published : 2014.12.31
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Abstract

The world is in need of sustainable and eco-friendly energy sources such as microalgal biodiesel due to global warming and fossil fuel shortages. In this study, we compared the effectiveness of liquid fertilizer produced from swine manure and agriculture grade solid fertilizers as nutrient sources for microalgal biomass production. Mixed culture (Chlorella spp., Scenedesmus spp., Stigeoclonium spp.; CSS) was cultivated for 28 days in Small Scale Raceway Pond (SSRP) using various nutrient sources (swine manure liquid fertilizer, agricultural solid fertilizer, and mixture of these two fertilizers). Biomass and lipid productivity of fertilizer mixture were the highest at 0.8 g/L and 5.8 mg/L/day, respectively. These results indicate that the fertilizer mixture can provide microalgae necessary nutrient sources for stable biodiesel production and biomass growth. In addition, overall cost of microalgal cultivation and subsequently biodiesel production would be significantly reduced.

최근 지구온난화문제와 화석연료 자원의 부족문제로 인해 지속적이고 친환경적인 미세조류 기반 바이오디젤이 주목받고 있다. 본 연구에서는 돈분 액체비료와 농업용 복합비료가 바이오 디젤 생산을 위한 미세조류 영양원으로 활용될 가능성을 확인해 보았다. 혼합 미세조류 CSS (Chlorella spp., Scenedesmus spp., Stigeoclonium spp.) 배양을 위한 영양원은 돈분 액체비료, 돈분 액체비료와 농업용 복합비료의 혼합, 농업용 복합비료이며, 28일간 Small Scale Raceway Pond (SSRP)에서 옥외배양하였다. 그 결과 혼합 실험구의 바이오매스와 지질 생산성은 각각 0.8g/L, 5.8 mg/L/day로 가장 우수한 바이오매스량과 지질 생산성을 보여주었다. 이 연구를 통해 농업용 복합비료와 돈분 액체비료의 혼합액이 미세조류에 안정적인 영양 공급을 하는 영양원으로 활용될 가능성을 확인하였다. 또한, 미세조류 배양단가와 바이오디젤 생산단가를 낮출 가능성도 탐구하였다.

Keywords

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