Banca de DEFESA: EZEQUIEL HANSEL

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : EZEQUIEL HANSEL
DATA : 27/10/2021
HORA: 09:30
LOCAL: videoconferência na plataforma RNP (sala PEI-UFBA)
TÍTULO:

DEVELOPMENT OF A CLAY CERAMIC PHOTOBIOREACTOR FOR THE PRODUCTION OF MICROALGAE BIOMASS.

PALAVRAS-CHAVES:

Attached Cultivation, Microalgae Biotechnology, Sustainability, Photosynthesis, Biorefinery.

PÁGINAS: 98
GRANDE ÁREA: Engenharias
ÁREA: Engenharia de Produção
RESUMO:

Microalgae are used in different industrial processes, such as atmospheric carbon fixation and effluent treatment, up to the manufacture of industrial products such as animal feed, high added value molecules, biofuels. However, the production of microalgae still faces several obstacles, such as the high cost of production, especially for the manufacture of products with low added value or in environmental remediation processes. In the present work, the development of a porous substrate photobioreactor from clay ceramic named Clay Ceramic Photobioreactor (CCPB), is proposed. The project was built and tested on a bench scale. The CCPB was made with simple and low-cost materials and was designed to cultivate microalgae adhered as a biofilm, immobilized on the surface of the reactor. The proposed system design allows for an almost complete separation between biomass and liquid culture medium. The photobioreactors were evaluated at different mass ratios between clay and sawdust and brought to a burning temperature of 900°C. The results showed that the particle size of the sawdust must be sieved in a 10 mesh and mixed in the mass proportion of 33.3% of sawdust and 66.7% of red clay. 3.95 gm-2.d-1 dry biomass after 7 days of operation, without CO2 injection, at a light intensity of 45 μmol.m−2.s−1. The CCPB allows the biomass to be harvested by simple surface scraping and this process guaranteed a reduced moisture content between 78 and 82%. The production and cultivation of microalgae in the Clay Ceramic Photobioreactor tends to have a lower energy consumption when compared to traditional suspension cultivation, such as tubular and flat plate photobioreactors, as well as open ponds. The maintenance of the system on a laboratory scale presented advantages such as the reuse of the plates and the resistance to high temperatures. Clay appears to be a viable material for the production of new systems for microalgae cultivation.

MEMBROS DA BANCA:
Presidente - 136.564.225-91 - EMERSON ANDRADE SALES - UFBA
Interna - 1677204 - ELAINE CHRISTINE DE MAGALHAES CABRAL ALBUQUERQUE
Externa à Instituição - ALICE COSTA KIPERSTOK
Externo à Instituição - DARLAN AZEVEDO PEREIRA