Design and test of a low-cost RGB sensor for online measurement of microalgae concentration within a photo-bioreactor.
In this study, a low-cost RGB sensor is developed to measure online the microalgae concentration within a photo-bioreactor. Two commercially available devices, i.e., a spectrophotometer for offline measurements and an immersed probe for online measurements, are used for calibration and comparison purposes. Furthermore, the potential of such a sensor for estimating other variables is illustrated with the design of an extended Luenberger observer.
BioSys, University of Mons, Boulevard Dolez 31, 7000 Mons, Belgium. micaela.benavides@umons.ac.be.
Micaela
M
Benavides
BioSys, University of Mons, Boulevard Dolez 31, 7000 Mons, Belgium. johan.mailier@fpms.ac.be.
Johan
J
Mailier
BioSys, University of Mons, Boulevard Dolez 31, 7000 Mons, Belgium. anne-lise.hantson@umons.ac.be.
Anne-Lise
AL
Hantson
Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro 76230, Mexico. GMunozM@ii.unam.mx.
Gerardo
G
Muñoz
Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro 76230, Mexico. AVargasC@ii.unam.mx.
Alejandro
A
Vargas
Department of Chemical Engineering, Catholic University of Leuven, 3001 Leuven, Belgium. jan.vanimpe@cit.kuleuven.be.
Jan
J
Van Impe
BioSys, University of Mons, Boulevard Dolez 31, 7000 Mons, Belgium. alain.vandewouwer@umons.ac.be.
Alain
A
Vande Wouwer
D019149:Bioreactors; D015374:Biosensing Techniques; D058086:Microalgae / Q000302:isolation & purification*; D009862:Online Systems; D058998:Remote Sensing Technology; D013053:Spectrophotometry