Using atmospheric emissions as CO2 source in the cultivation of microalgae: Productivity and economic viability

This study approached the use of atmospheric emissions as a source of carbon for the cultivation of microalgae in high rate ponds (HRPs), continuously fed with domestic sewage pre-treated in a septic tank. To do so, two HRPs were used: one had CO2 at a concentration of 99.9% (HRP 1), and the other h...

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Bibliographic Details
Published in:Journal of cleaner production 2019-04, Vol.215, p.1160-1169
Main Authors: Assis, Tamires Condé de, Calijuri, Maria Lúcia, Assemany, Paula Peixoto, Pereira, Alexia Saleme Aona de Paula, Martins, Márcio Arêdes
Format: Article
Language:English
Subjects:
CO2 supply
Effluent treatment
High rate ponds
Investment analysis
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Summary:This study approached the use of atmospheric emissions as a source of carbon for the cultivation of microalgae in high rate ponds (HRPs), continuously fed with domestic sewage pre-treated in a septic tank. To do so, two HRPs were used: one had CO2 at a concentration of 99.9% (HRP 1), and the other had gas from the combustion of gasoline (HRP 2). Biomass yield, sewage treatment efficiency and the economic viability of using these two sources were assessed. The results showed that the CO2 source did not influence the domestic sewage treatment or the yield and biochemical composition of biomass, since there was no statistical difference (p 
ISSN:0959-6526
1879-1786
DOI:10.1016/j.jclepro.2019.01.093