Published 2026-06-10
Copyright (c) 2026 Jesús Rubén Rodríguez Núñez, Stefanie Acosta Ferreira, Christian Ariel Cabrera Capetillo, Vicente Peña Caballero, Luz María Landa Zavaleta, Nagamani Balagurusamy, Rafael Veloz García, Omar S. Castillo

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Abstract
A dual-purpose system is a technique that increases microalgae biomass production using wastewater as a nutrient source. This work evaluated a dual-purpose system using dairy industry wastewater (DWW) and synthetic mineral medium to increase microalgae biomass yields. Kinetics growth, lipids, proteins, chlorophyll, and nutrient consumption were determined in combinations of bold-basal medium (BBM), and water-wastewater (DWW) medium. The combinations were 40DWW-60TW and 40DWW-60BBM, and the biomass yields were 1.47 g/L and 2.46 g/L, with a COD removal of 85% and 71%, respectively. The tests tried in 4 L flat plate photobioreactors showed that 40DWW-60BBM formulation increased the biomass to 1.65 g/L, with a COD removal of 98%.
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