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KMID : 0380019950100040401
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Korean Journal of Biotechnology and Bioengineering
1995 Volume.10 No. 4 p.401 ~ p.404
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Kinetics of Cultivating Photosynthetic Microalga, Spirulina platensis an Outdoor Photobioreactor
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Abstract
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An open pond type photobioreactor for mass cultivation of S. platensis was designed and the growth parameters from different cultivation processes were compared. 0.30(1/day) of specific growth rate and 1.69(g/V ) of maximum cell density were obtained from batch cultivation. In fed-batch cultivation, specific growth rate and maximum cell density were estimated as 0.22(1/day) and 1.75(g/B ), respectively. Maximum, biomass productivity from continuous cultivation was obtained as 0.44(gfl/day). It proves that an outdoor mass cultivation of S. platensis considering optimal environmental condition is economically feasible. In addition, the biomass productivity was studied in two different mixing systems such as agitation and air sparging methods. The biomass productivity by an agitation method was better than that in an air sparging method.
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