Paper details

Title:

Carbon Dioxide Fixation of Freshwater Microalgae Using a Laboratory and a Pilot Plant Photobioreactors

Author(s):

González, J., Barrena, R.A., Matías, J., Royano, L.

Document(s):

Abstract:

Microalgae are a potential source of renewable energy due to their high biomass production. Carbon dioxide fixation of three freshwater microalgae (Scenedesmus sp., Synechocystis sp. and Muriellopsis sp.) were analyzed in batch culture in a 2 litres of volume photobioreactor and a 200 litres photobioreactor. The same conditions were applied in all trials. Irradiance, pH, temperature, air and CO2 flow, time and medium were monitored -1 -1 in laboratory trials. Carbon dioxide fixation (g CO2 lday) was determined as a function of biomass production rate -1 -1 (g dry matter lday) and microalgae carbon composition (percentage) was obtained by an elemental analyzer. -1 -1-1 -1 Carbon dioxide fixation results were: Scenedesmus sp. (0.12 g CO2 lday), Synechocystis sp. (0.13gCO2lday) -1 -1-1 -1 and Muriellopsis sp. (0.10 g CO2 lday) with a biomass growth rate of 0.25 g lday. These results show that microalgae use carbon dioxide to obtain biomass at high rate. This biomass can be used as raw material to obtain biofuel. The Altercexa II Project studies microalgae in Extremadura region (Southwestern Spain) to reduce CO2 emissions and to obtain biofuels.

Keywords:

biomass, microalgae, carbon dioxide, CO₂

Topic:

Biomass Resources

Subtopic:

Algae production systems

Event:

20th European Biomass Conference and Exhibition

Session:

1CV.3.31

Pages:

450 - 452

ISBN:

978-88-89407-54-7

Paper DOI:

10.5071/20thEUBCE2012-1CV.3.31

Price:

FREE