Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4997348 | Bioresource Technology | 2017 | 17 Pages |
Abstract
CO2 biofixation by microalgae and cyanobacteria is an environmentally sustainable way to mitigate coal burn gas emissions. In this work the microalga Chlorella fusca LEB 111 and the cyanobacteria Spirulina sp. LEB 18 were cultivated using CO2 from coal flue gas as a carbon source. The intermittent flue gas injection in the cultures enable the cells growth and CO2 biofixation by these microorganisms. The Chlorella fusca isolated from a coal power plant could fix 2.6 times more CO2 than Spirulina sp. The maximum daily CO2 from coal flue gas biofixation was obtained with Chlorella fusca (360.12 ± 0.27 mg Lâ1 dâ1), showing a specific growth rate of 0.17 ± <0.01 dâ1. The results demonstrated the Chlorella fusca LEB 111 and Spirulina sp. LEB 18 potential to fix CO2 from coal flue gas, and sequential biomass production with different biotechnological destinations.
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Authors
Jessica Hartwig Duarte, Etiele Greque de Morais, Elisângela Martha Radmann, Jorge Alberto Vieira Costa,