Modeling, characterization and microalgal cultivation in an airlift panel photobioreactors.

Stamato, Marisa (2013) Modeling, characterization and microalgal cultivation in an airlift panel photobioreactors. [Laurea magistrale], Università di Bologna, Corso di Studio in Ingegneria chimica e di processo [LM-DM270], Documento ad accesso riservato.
Documenti full-text disponibili:
[img] Documento PDF
Full-text non accessibile fino al 31 Dicembre 2045.

Download (3MB) | Contatta l'autore


Microalgae cultures are attracting great attentions in many industrial applications. However, one of the technical challenges is to cut down the capital and operational costs of microalgae production systems, with special difficulty in reactor design and scale-up. The thesis work open with an overview on the microalgae cultures as a possible answer to solve some of the upcoming planet issues and their applications in several fields. After the work offers a general outline on the state of the art of microalgae culture systems, taking a special look to the enclosed photobioreactors (PBRs). The overall objective of this study is to advance the knowledge of PBRs design and lead to innovative large scale processes of microalgae cultivation. An airlift flat panel photobioreactor was designed, modeled and experimentally characterized. The gas holdup, liquid flow velocity and oxygen mass transfer of the reactor were experimentally determined and mathematically modeled, and the performance of the reactor was tested by cultivation of microalgae. The model predicted data correlated well with experimental data, and the high concentration of suspension cell culture could be achieved with controlled conditions. The reactor was inoculated with the algal strain Scenedesmus obliquus sp. first and with Chlorella sp. later and sparged with air. The reactor was operated in batch mode and daily monitored for pH, temperature, and biomass concentration and activity. The productivity of the novel device was determined, suggesting the proposed design can be effectively and economically used in carbon dioxide mitigation technologies and in the production of algal biomass for biofuel and other bioproducts. Those research results favored the possibility of scaling the reactor up into industrial scales based on the models employed, and the potential advantages and disadvantages were discussed for this novel industrial design.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Stamato, Marisa
Relatore della tesi
Corso di studio
Ordinamento Cds
Parole chiave
microalgae, photobioreactor, fluid dynamic, airlift
Data di discussione della Tesi
3 Ottobre 2013

Altri metadati

Gestione del documento: Visualizza il documento