CO2 biocapture by Scenedesmus sp. grown in industrial wastewater

Greenhouse gases (GHG) emissions are widely related to climate change, triggering several environmental problems of global concern and producing environmental, social, economic negative impacts. Therefore, research seeks mitigate greenhouse gas emissions. On the other hand, use wastes under a circular economy scheme generates subproducts from range high medium-value, representing way help sustainable development. wastewater as culture medium grow microalgae strains that biocapture CO2, is proposal with potential reduce GHG presence in environment. In this work, Scenedesmus sp. was cultivated using BG-11 industrial (IWW) three different CO2 concentrations, 0.03%, 10%, 20% determine their potential. Furthermore, concomitant removal COD, nitrates, total phosphorus evaluated. achieves biomass concentration 1.9 g L?1 when grown medium, 0.69 combination 25% wastewater; both cases supplied. The maximum efficiency (8.4%, 446 ± 150 mg day?1) obtained 10% supplied 50% IWW (T2). Also, highest COD reached T2 supply (82% removal). Besides, nitrates achieved 75% (T3) (42% removal) TP performed (T1) (67% These results indicate can be used media for growth processes.