The Scenedesmus acuminatus microalgae in culture media aiming at the production of biodiesel

• Autor(a) principal: Brito, Yohanna Jamilla Vilar de
• Data de Publicação: 2020
• Outros Autores: Lopes, Thiago Santos de Almeida, Santos, Whelton Brito dos, Torquato, Amanda Laurentino, Lima, Vera Lúcia Antunes de, Ferreira, Weruska Brasileiro
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Verde de Agroecologia e Desenvolvimento Sustentavel
• Texto Completo: https://www.gvaa.com.br/revista/index.php/RVADS/article/view/6484
• topic: Microalgae; Biofuels; Residual waters; Microalgas; Biocombustibles; Aguas Residuales; Microalgas; Biocombustíveis; Águas residuais

Biodiesel has stood out as one of the most viable options to promote the gradual reduction of consumption of fossil fuels. In this context, microalgae appear as promising raw material, since they have a higher lipid yield than the oleaginous ones used in the production of this biofuel, as well as the bioremediation of wastewater and high absorption of CO2. However, the high cost of nutrients used in the preparation of culture mediums makes it difficult to implement on a real scale. The objective of this study was to evaluate the growth of the microalga Scenedesmus acuminatus in three culture medium: two synthetic, Bold´s Basal Medium (BBM) and Wright’s Cryptophyte (WC), and one alternative culture with anaerobic effluent from the domestic sewage of the Upflow Anaerobic Sludge Blanket (UASB) reactor, in order to minimize costs and to make production viable of biodiesel. According to the results obtained, the UASB effluent culture obtained the highest cell density and did not show statistically significant differences in relation to the synthetic media, which reveals a viable culture alternative. In view of this, it was concluded that the use of liquid waste from the anaerobic domestic sewage treatment can increase the viability of the crops for the production of biodiesel, since they allow cost reduction by replacing synthetic media.