No abstract

Perda química de carbono e cinética do crescimento celular em cultivos de Spirulina michele da rosa andrade, Felipe vieira camerini e Jorge alberto vieira costa*

The atmospheric concentration of CO 2 , the main greenhouse gas (GHG), has increased rapidly since the beginning of the industrial age. Anthropogenic emissions from coal-fired power plants are responsible for approximately 7% (w/w) of global CO 2 emissions. Microalgae CO 2 biofixation is a technology that reduces GHGs based on the use of solar energy through photosynthesis to capture and use the CO 2 that is produced by thermal and other sources. We determined the kinetic characteristics of the cyanophyteSpirulina sp. LEB 18 and the chlorophyteScenedesmus obliquus LEB 22 and their capacities for CO 2 fixation from the flue gas of a thermoelectric plant. The kinetic growth parameters of Spirulina increased when flue gas was used as the sole carbon source. At the end of cultivation, the biomass production of Spirulina sp. LEB 18 was 35% higher in the medium with flue gas compared to the Zarrouk medium, resulting in 5.7% CO 2 biofixation and a 24% reduction in flue gas CO 2 . Thus, the biofixation of CO 2 from flue gas may be useful in helping to alleviate global warming.

No abstract

The use of Spirulina in CO 2 biofixation, aside from its contribution to reducing the greenhouse effect, enables the use of the biomass to obtain biocompounds. In this work, Spirulina platensis was used for