Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Analysis of the influence of microalgae as biofertilizers and integration into the renewable energy system
Submission Author:
Beatriz Jacob Furlan , PR , Brazil
Co-Authors:
Ágatha Cardoso Hoffmann, Beatriz Jacob Furlan, Paulo Alexandre Silveira da Silva, Vanessa Kava, Gabriela Conor Figueiredo, Murilo Gasparin Rampi, JOSÉ VIRIATO COELHO VARGAS, Glaciela Kaschuk
Presenter: Gabriela Conor Figueiredo
doi://10.26678/ABCM.COBEM2023.COB2023-2336
Abstract
The use of biofertilizers that promote plant growth, based on microalgae and rhizobacteria, have been increasingly adopted as an alternative to increase agricultural production and reduce dependence on chemical fertilizers. These biostimulants are able to improve plant growth due to their high levels of essential nutrients such as nitrogen, phosphorus and potassium, also increasing resistance to disease and environmental stress. The ease of cultivation of these microorganisms in the laboratory makes their production scalable and efficient and, in addition, by using microalgae and rhizobacteria as biostimulants, it is possible to reduce the use of chemical fertilizers and pesticides, which benefits both the environment and human health. , and may also contribute to increasing plant productivity and improving the quality of food produced. In addition, it is possible to reduce dependence on chemical fertilizers and generate economic benefits in the pharmaceutical and cosmetic industry. In order to guarantee the viability and sustainability of microalgal biomass production, it is important to constantly monitor the physical and economic performance of the system. It is possible to explore the full potential of microalgae as a source of plant biofertilizers and metabolites of biotechnological interest. In addition to the benefits for agricultural production and industry, the production of microalgal biomass may be associated with the use of renewable energy sources. Photobioreactor systems use sunlight as an energy source for the photosynthesis process and, therefore, can be used to produce biomass. In addition, residual biomass can be used as an energy source in anaerobic digestion systems, generating biogas and promoting the generation of renewable energy. The production of microalgal biomass as a plant biostimulant and source of metabolites of biotechnological interest can be integrated into renewable energy systems, contributing to sustainable development and reducing dependence on fossil energy sources. Thus, the present work aims to evaluate and compare the effects of different biostimulants that promote plant growth, belonging to the inoculant Pastomax (BIOTROP, Vinhedo, SP., Brazil), using solutions made alone and in association with the microalgae Tetradesmus obliquus and the rhizobacteria Azospirillum brasilense and Pseudomonas fluorecens, respectively. The study was conducted in a completely randomized experimental design, with three replications. The treatments were subsequently followed by analysis of chlorophyll content, leaf growth and root growth, aiming to understand the behavior of microalgae and bacteria when used as plant biostimulants.
Keywords
Renewable Sources, microalgae, metabolites, biofertilizer, sustanaible chain
