TY - JOUR
T1 - Characterization of bubble column photobioreactors for shear-sensitive microalgae culture
AU - López-Rosales, Lorenzo
AU - Sánchez-Mirón, Asterio
AU - Contreras-Gómez, Antonio
AU - García-Camacho, Francisco
AU - Battaglia, Francine
AU - Zhao, Lei
AU - Molina-Grima, Emilio
N1 - Publisher Copyright:
© 2018
PY - 2019/3
Y1 - 2019/3
N2 - The shear-sensitive marine algal dinoflagellate Karlodinium veneficum was grown in a cylindrical bubble column photobioreactor with an internal diameter of 0.044 m. Initial liquid height varied from 0.5 to 1.75 m, superficial gas velocities from 0.0014 to 0.0057 ms−1, and nozzle diameter from 1 to 2.5 mm. Computational fluid dynamics was used to characterize the flow hydrodynamics and energy dissipation rates. Experimental gas holdup and volumetric mass transfer coefficient strongly depended on the liquid height and correlated well with the Froude number. Energy dissipation near the head space (EDtop) was one order of magnitude higher than the average energy dissipation in the whole reactor (EDwhole), and the value in the sparger zone (EDspar) was one order of magnitude higher than EDtop. Cultures of K. veneficum were limited by CO2 transfer at low EDwhole and severely stressed above a critical value of EDwhole.
AB - The shear-sensitive marine algal dinoflagellate Karlodinium veneficum was grown in a cylindrical bubble column photobioreactor with an internal diameter of 0.044 m. Initial liquid height varied from 0.5 to 1.75 m, superficial gas velocities from 0.0014 to 0.0057 ms−1, and nozzle diameter from 1 to 2.5 mm. Computational fluid dynamics was used to characterize the flow hydrodynamics and energy dissipation rates. Experimental gas holdup and volumetric mass transfer coefficient strongly depended on the liquid height and correlated well with the Froude number. Energy dissipation near the head space (EDtop) was one order of magnitude higher than the average energy dissipation in the whole reactor (EDwhole), and the value in the sparger zone (EDspar) was one order of magnitude higher than EDtop. Cultures of K. veneficum were limited by CO2 transfer at low EDwhole and severely stressed above a critical value of EDwhole.
KW - Bubble column
KW - CFD
KW - Cell damage
KW - Energy dissipation rate
KW - Karlodinium veneficum
UR - http://www.scopus.com/inward/record.url?scp=85058462281&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2018.12.009
DO - 10.1016/j.biortech.2018.12.009
M3 - Artículo
C2 - 30572257
AN - SCOPUS:85058462281
SN - 0960-8524
VL - 275
SP - 1
EP - 9
JO - Bioresource Technology
JF - Bioresource Technology
ER -