Horizontal or vertical photobioreactors? How to improve microalgae photosynthetic efficiency

M. Cuaresma, M.G.J. Janssen, C. Vilchez, R.H. Wijffels

Research output: Contribution to journalArticleAcademicpeer-review

98 Citations (Scopus)

Abstract

The productivity of a vertical outdoor photobioreactor was quantitatively assessed and compared to a horizontal reactor. Daily light cycles in southern Spain were simulated and applied to grow the microalgae Chlorella sorokiniana in a flat panel photobioreactor. The maximal irradiance around noon differs from 400µmolphotonsm(-2)s(-1) in the vertical position to 1800µmolphotonsm(-2)s(-1) in the horizontal position. The highest volumetric productivity was achieved in the simulated horizontal position, 4gkg culture(-1)d(-1). The highest photosynthetic efficiency was found for the vertical simulation, 1.3g of biomass produced per mol of PAR photons supplied, which compares favorably to the horizontal position (0.85gmol(-1)) and to the theoretical maximal yield (1.8gmol(-1)). These results prove that productivity per unit of ground area could be greatly enhanced by placing the photobioreactors vertically
Original languageEnglish
Pages (from-to)5129-5137
JournalBioresource Technology
Volume102
Issue number8
DOIs
Publication statusPublished - 2011

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Photobioreactors
Productivity
productivity
photosynthetically active radiation
irradiance
Biomass
Photons
biomass
simulation

Keywords

  • outdoor mass cultivation
  • chlorophyll fluorescence
  • tubular photobioreactor
  • muriellopsis sp
  • chlorella
  • light
  • temperature
  • culture
  • productivity
  • irradiance

Cite this

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title = "Horizontal or vertical photobioreactors? How to improve microalgae photosynthetic efficiency",
abstract = "The productivity of a vertical outdoor photobioreactor was quantitatively assessed and compared to a horizontal reactor. Daily light cycles in southern Spain were simulated and applied to grow the microalgae Chlorella sorokiniana in a flat panel photobioreactor. The maximal irradiance around noon differs from 400µmolphotonsm(-2)s(-1) in the vertical position to 1800µmolphotonsm(-2)s(-1) in the horizontal position. The highest volumetric productivity was achieved in the simulated horizontal position, 4gkg culture(-1)d(-1). The highest photosynthetic efficiency was found for the vertical simulation, 1.3g of biomass produced per mol of PAR photons supplied, which compares favorably to the horizontal position (0.85gmol(-1)) and to the theoretical maximal yield (1.8gmol(-1)). These results prove that productivity per unit of ground area could be greatly enhanced by placing the photobioreactors vertically",
keywords = "outdoor mass cultivation, chlorophyll fluorescence, tubular photobioreactor, muriellopsis sp, chlorella, light, temperature, culture, productivity, irradiance",
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doi = "10.1016/j.biortech.2011.01.078",
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volume = "102",
pages = "5129--5137",
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Horizontal or vertical photobioreactors? How to improve microalgae photosynthetic efficiency. / Cuaresma, M.; Janssen, M.G.J.; Vilchez, C.; Wijffels, R.H.

In: Bioresource Technology, Vol. 102, No. 8, 2011, p. 5129-5137.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Horizontal or vertical photobioreactors? How to improve microalgae photosynthetic efficiency

AU - Cuaresma, M.

AU - Janssen, M.G.J.

AU - Vilchez, C.

AU - Wijffels, R.H.

PY - 2011

Y1 - 2011

N2 - The productivity of a vertical outdoor photobioreactor was quantitatively assessed and compared to a horizontal reactor. Daily light cycles in southern Spain were simulated and applied to grow the microalgae Chlorella sorokiniana in a flat panel photobioreactor. The maximal irradiance around noon differs from 400µmolphotonsm(-2)s(-1) in the vertical position to 1800µmolphotonsm(-2)s(-1) in the horizontal position. The highest volumetric productivity was achieved in the simulated horizontal position, 4gkg culture(-1)d(-1). The highest photosynthetic efficiency was found for the vertical simulation, 1.3g of biomass produced per mol of PAR photons supplied, which compares favorably to the horizontal position (0.85gmol(-1)) and to the theoretical maximal yield (1.8gmol(-1)). These results prove that productivity per unit of ground area could be greatly enhanced by placing the photobioreactors vertically

AB - The productivity of a vertical outdoor photobioreactor was quantitatively assessed and compared to a horizontal reactor. Daily light cycles in southern Spain were simulated and applied to grow the microalgae Chlorella sorokiniana in a flat panel photobioreactor. The maximal irradiance around noon differs from 400µmolphotonsm(-2)s(-1) in the vertical position to 1800µmolphotonsm(-2)s(-1) in the horizontal position. The highest volumetric productivity was achieved in the simulated horizontal position, 4gkg culture(-1)d(-1). The highest photosynthetic efficiency was found for the vertical simulation, 1.3g of biomass produced per mol of PAR photons supplied, which compares favorably to the horizontal position (0.85gmol(-1)) and to the theoretical maximal yield (1.8gmol(-1)). These results prove that productivity per unit of ground area could be greatly enhanced by placing the photobioreactors vertically

KW - outdoor mass cultivation

KW - chlorophyll fluorescence

KW - tubular photobioreactor

KW - muriellopsis sp

KW - chlorella

KW - light

KW - temperature

KW - culture

KW - productivity

KW - irradiance

U2 - 10.1016/j.biortech.2011.01.078

DO - 10.1016/j.biortech.2011.01.078

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SP - 5129

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JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

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