Title:
Raceway and Bubble Column Photobioreactors for Biomass Production of Chlorella Pyrenoidosa Using Secondarily Treated Sewage
Author(s):
Sánchez, S., Órpez, R., Hodaifa, G., Valdivia, M., Patón, M.P., Martínez, M.L., Pacheco, R., Martínez, M.E.
Document(s):
Paper
Poster
Abstract:
Chlorella pyrenoidosa Chick 8H was cultivated in secondarily treated urban sewages in bubble column and raceway photobioreactors without a supply of additional nutrients. The uses of microalgae for CO2 elimination, bioremediation and biomass production for sustainable valuable sources like biofuels and fine chemicals is a feasible option with enormous industrial and economic potential. Biodiesel production from microalgae is a promising alternative, because microalgae improve characteristics in relation to crops of traditional plant sources. This study tries to evaluate essentially the parameter kinetics (maximum specific growth rate, µm, and volumetric biomass productivity, Pb) as well as the formation of lipids. In the bubble column photobioreactor and under natural conditions, the highest values of µm and Pb were 0.005 h-1 and 0.14 10-3 g dm-3 h-1, respectively, while in the raceway these parameters were higher, µm = 0.042 h-1 and Pb = 8.28 10-3 g dm-3 h-1 . In the bubble column the percentage of lipids based on dry weight of the biomass was close to 21%. From biomass generated the aim was to undertake the separation of lipids, and evaluate the possibility of transforming lipid fraction into fatty acid methyl esters.
Keywords:
biodiesel, microalgae, wastewater, lipids, phototobioreactor, raceway ponds, bubble columns
Topic:
Biomass Resources
Subtopic:
Algae production systems
Event:
24th European Biomass Conference and Exhibition
Session:
1CV.4.40
Pages:
300 - 304
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-1CV.4.40
Price:
FREE
