Abstract
Carbon dioxide emission is one of the main causes of global warming, which is caused by the evolution of the atmosphere from a mixture of gases originating from the interior of the earth. To overcome the problem of CO2 gas emissions, efforts have been made to reduce CO2 emissions by capturing CO2 with the Carbon Capture Storage (CCS) method, which aims to reduce carbon emissions released into the atmosphere. Biological CO2 capture generally uses microalgae cultivation. Previous research has used an open pond development system, with varied types of microalgae. In this study, CO2 capture was carried out using microalgae species Chlorella pyrenoidosa in a photobioreactor (PBR). This study results an optimum biomass productivity for Chlorella pyrenoidosa, the variation of NaHCO3 0 ppm is 4.090 g. l−1. d−1 on day 7, followed by variation of flow rate is is 2.844 g. l−1. d−1 on day 7. Suggestions for further research is to calculate the optimal cost incurred at the optimal CO2 concentration that can be captured by microalgae and the resulting increase in the value of the biomass microalgae that can be produced so that the use of microalgae can carried out comprehensively.
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