Experimental validation of a nonequilibrium model of CO2 fluxes
between gas, liquid medium, and algae in a flat-panel
photobioreactor

J 2010

Experimental validation of a nonequilibrium model of CO2 fluxes between gas, liquid medium, and algae in a flat-panel photobioreactor

NEDBAL, Ladislav; Jan ČERVENÝ; N KEREN a A KAPLAN

Základní údaje

Originální název

Experimental validation of a nonequilibrium model of CO2 fluxes between gas, liquid medium, and algae in a flat-panel photobioreactor

Autoři

NEDBAL, Ladislav; Jan ČERVENÝ; N KEREN a A KAPLAN

Vydání

JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY, HEIDELBERG, SPRINGER HEIDELBERG, 2010, 1367-5435

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 2.416

Označené pro přenos do RIV

DOI

https://doi.org/10.1007/s10295-010-0876-5

UT WoS

000284373300013

Klíčová slova anglicky

Algae; Carbon dioxide; Cyanobacteria; Mathematical model; Photosynthesis

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 28. 11. 2014 13:53, Ing. Jan Červený, Ph.D.

Anotace

V originále

Carbon dioxide (CO2) availability strongly affects the productivity of algal photobioreactors, where it is dynamically exchanged between different compartments, phases, and chemical forms. To understand the underlying processes, we constructed a nonequilibrium mathematical model of CO2 dynamics in a flat-panel algal photobioreactor. The model includes mass transfer to the algal suspension from a stream of bubbles of CO2-enriched air and from the photobioreactor headspace. Also included are the hydration of dissolved CO2 to bicarbonate ion (HCO (3) (-) ) as well as uptake and/or cycling of these two chemical forms by the cells. The model was validated in experiments using a laboratory-scale flat-panel photobioreactor that controls light, temperature, and pH and where the concentration of dissolved CO2, and partial pressure of CO2 in the photobioreactor exhaust are measured. First, the model prediction was compared with measured CO2 dynamics that occurred in response to a stepwise change in the CO2 partial pressure in the gas sparger. Furthermore, the model was used to predict CO2 dynamics in photobioreactors with unicellular, nitrogen-fixing cyanobacterium Cyanothece sp. The metabolism changes dramatically during a day, and the distribution of CO2 is expected to exhibit a pronounced diurnal modulation that significantly deviates from chemical equilibrium.

Citovat

NEDBAL, Ladislav; Jan ČERVENÝ; N KEREN a A KAPLAN. Experimental validation of a nonequilibrium model of CO2 fluxes between gas, liquid medium, and algae in a flat-panel photobioreactor. JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY. HEIDELBERG: SPRINGER HEIDELBERG, 2010, roč. 37, č. 12, s. 1319-1326. ISSN 1367-5435. Dostupné z: https://doi.org/10.1007/s10295-010-0876-5.

@article{1210748,
   author = {Nedbal, Ladislav and Červený, Jan and Keren, N and Kaplan, A},
   article_location = {HEIDELBERG},
   article_number = {12},
   doi = {https://doi.org/10.1007/s10295-010-0876-5},
   keywords = {Algae; Carbon dioxide; Cyanobacteria; Mathematical model; Photosynthesis},
   language = {eng},
   issn = {1367-5435},
   journal = {JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY},
   title = {Experimental validation of a nonequilibrium model of CO2 fluxes between gas, liquid medium, and algae in a flat-panel photobioreactor},
   volume = {37},
   year = {2010}
}

TY  - JOUR
ID  - 1210748
AU  - Nedbal, Ladislav - Červený, Jan - Keren, N - Kaplan, A
PY  - 2010
TI  - Experimental validation of a nonequilibrium model of CO2 fluxes between gas, liquid medium, and algae in a flat-panel photobioreactor
JF  - JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
VL  - 37
IS  - 12
SP  - 1319-1326
EP  - 1319-1326
PB  - SPRINGER HEIDELBERG
SN  - 13675435
KW  - Algae
KW  - Carbon dioxide
KW  - Cyanobacteria
KW  - Mathematical model
KW  - Photosynthesis
N2  - Carbon dioxide (CO2) availability strongly affects the productivity of algal photobioreactors, where it is dynamically exchanged between different compartments, phases, and chemical forms. To understand the underlying processes, we constructed a nonequilibrium mathematical model of CO2 dynamics in a flat-panel algal photobioreactor. The model includes mass transfer to the algal suspension from a stream of bubbles of CO2-enriched air and from the photobioreactor headspace. Also included are the hydration of dissolved CO2 to bicarbonate ion (HCO (3) (-) ) as well as uptake and/or cycling of these two chemical forms by the cells. The model was validated in experiments using a laboratory-scale flat-panel photobioreactor that controls light, temperature, and pH and where the concentration of dissolved CO2, and partial pressure of CO2 in the photobioreactor exhaust are measured. First, the model prediction was compared with measured CO2 dynamics that occurred in response to a stepwise change in the CO2 partial pressure in the gas sparger. Furthermore, the model was used to predict CO2 dynamics in photobioreactors with unicellular, nitrogen-fixing cyanobacterium Cyanothece sp. The metabolism changes dramatically during a day, and the distribution of CO2 is expected to exhibit a pronounced diurnal modulation that significantly deviates from chemical equilibrium.
ER  -

NEDBAL, Ladislav; Jan ČERVENÝ; N KEREN a A KAPLAN. Experimental validation of a nonequilibrium model of CO2 fluxes between gas, liquid medium, and algae in a flat-panel photobioreactor. \textit{JOURNAL OF INDUSTRIAL MICROBIOLOGY \&{}amp; BIOTECHNOLOGY}. HEIDELBERG: SPRINGER HEIDELBERG, 2010, roč.~37, č.~12, s.~1319-1326. ISSN~1367-5435. Dostupné z: https://doi.org/10.1007/s10295-010-0876-5.

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