Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
PHOTOBIOREACTOR INOCULATION WITH SWINE SEWAGE FOR MICROALGAE CULTIVATION
Submission Author:
GUstavo Finger , PR , Brazil
Co-Authors:
Johana Guadalupe Blanco Martinez, Yago Kovara, Adalberto Adriano Gonçalves, Iago Gomes Costa, Dhyogo Miléo Taher, JOSÉ VIRIATO COELHO VARGAS, André Bellin Mariano, GUstavo Finger
Presenter: Iago Gomes Costa
doi://10.26678/ABCM.COBEM2017.COB17-0634
Abstract
Microalgae culture has been used to obtain biomass to produced biofuels and other bio-products, such as antioxidants and food. One of the ways of growing microalgae is through compact photobioreactors (PBR), where environmental conditions can be controlled and the culture can be prevented from undesired pathogenic contamination and water evaporation, which could reduce the quantity of biomass obtained. To become cost effectively, the cultivation of microalgae in photobioreactors must be performed in large volumes to obtain enough biomass and, consequently, large amounts of biofuels can be produced. Besides the quantity of biomass produced, researchers are aware of the biomass lipid content, which as high the content the better is to produce biodiesel. This work brings an inoculation of a 10 m3 PBR to obtain biomass from the microalgae specie Acutodesmus obliquus. The inoculation was performed with 500 L of swine sewage, which contain nitrogen and phosphorus that are important elements for microalgae metabolism and, at the same time, cannot be displaced in the environment without a previous treatment. The PBR was analysed during 19 days in terms of numbers of microalgae cells (number of cells.L-1), biomass concentration (g.L-1) and absorbance of 540 nm light. After the cultivation period, biomass lipid content was analysed and the result found was 16.07 ± 0.43%. The final biomass concentration in this 10 m3 PBR was 0.270 ± 0.0091 g.L-1.
Keywords
Acutodesmus obliquus, Biomass, microalgae, Swine Sewage, photobioreactor, lipid content
