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Updated: Feb 6, 2026

Author Spotlight: Scaling Microalgal Biotechnology for Enhanced Biomethane Production
Published on: March 22, 2024
Microalgae cultivation in agro-industrial effluents for biodiesel application: effects of the availability of
Mariana Daniel Tango1, Maria Lúcia Calijuri1, Paula Peixoto Assemany1
1Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Department of Civil Engineering, Environmental Engineering Group - nPA, Campus Viçosa, Viçosa, MG 36570-000, Brazil
Abstract:
The present study evaluated the cultivation of microalgae in a photobioreactor using effluents from the meat-processing industry, which had been previously treated at the primary and secondary levels. Scenedesmus sp. was the dominant genus in the phytoplankton community in both of the evaluated effluents. The different nutritional conditions affected the production of biomass, which reached 1,160 mg/L of volatile suspended solids (VSS) and 371 mg/L of VSS with cultivation in the primary (PE) and secondary effluents (SE), respectively. In both effluents, great removal efficiencies close to quantification limits were observed for ammoniacal nitrogen and soluble phosphorus. Regarding the accumulation of lipids, there were no considerable differences between the effluents. The highest lipid productivity that was observed in the PE, which reached 3.7 g/m²·d, was attributed to its larger production of biomass as a consequence of its better nutritional condition in relation to the SE.
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