• Title/Summary/Keyword: lipid productin

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Mass Cultivation of Botryococcus braunii for the Advanced Treatment of Swine Wastewater and Lipid Production in a Photobioreactor (축산폐수의 고도처리 및 지질생산을 위한 Botryococcus branuii의 대량배양)

  • 이석준;김성빈;김희식;권기석;윤병대;오희목
    • Microbiology and Biotechnology Letters
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    • v.27 no.2
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    • pp.166-171
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    • 1999
  • This study was conducted to investigate the removal rate of nitrogen and phosphorus, and lipid production from a swine wastewater by Botryococcus braunii UTEX 572 in an outdoor photobioreactor. B. braunii successfully predominated in competition with bacteria and other algae, especially Oscillatoria, which were grown spontaneously in a secondary-treated swine wastewater, under the conditions of incubation temperature at $25^{\circ}C$ and increased inoculum amount at 287mg/l. There was a significant relationship between dry weight of B. braunii and absorbance of culture solution at 680mn(r2=0.967), suggesting that the latter is as good as the former commonly used for the measurement of algal biomass which is considerably time-consuming. The removal rates of COD, TOC, total nitrogen, and total phosphorus from the swine wastewater were 33.2$\pm$2.6% and 32.8$\pm$3.2, respectively, which showing no different between them. These results suggested that the mass cultivation of B. braunii in an outdoor photobioreactor could be used for the advanced treatment of swine wastewater and lipid production.

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