Spirulina Cultivation Using Biogas CO2 as the Carbon Source: Preliminary Study on Biomass Growth and Productivity
E3S web of conferences(2023)
摘要
Anthropogenic activities are causing a rapid increase in global carbon dioxide (CO 2 ) emissions, which significantly contribute to global warming. Microalgae can be a sustainable solution for simultaneous wastewater treatment and sequestering CO 2 through photosynthesis. The current study reports a comparative evaluation of Spirulina sp. microalgal biomass growth and lipid productivity during its cultivation supplied with air and biogas from an anaerobic digester. It was observed that there was a 4-fold increase in biomass productivity in the reactor sparged with biogas compared to air supply. The reactor sparged with biogas showed a significant increase in lipid content. This increase in biomass productivity could be attributed to the increased availability of CO 2 , favoring algal growth.
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关键词
biomass growth,biogas co<sub>2</sub>,carbon source,cultivation
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