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KMID : 0364820140500040313
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Korean Journal of Microbiology
2014 Volume.50 No. 4 p.313 ~ p.318
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The Effect of Microalgal Growth on Nutrient Sources Using Microalgal Small Scale Raceway Pond (SSRP) for Biodiesel Production
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Kim Dong-Ho
Kim Byung-Hyuk
Choi Jong-Eun
Kang Zi-On
Kim Hee-Sik
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Abstract
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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.
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KEYWORD
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biodiesel, biomass, microalgae, open culture system, swine manure
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