A liquid foam-bed photobioreactor for microalgae production

Agnes Janoska*, Packo P. Lamers, Alex Hamhuis, Yorick van Eimeren, Rene H. Wijffels, Marcel Janssen

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

13 Citations (Scopus)

Abstract

A novel concept of cultivating microalgae in liquid foam was developed with the intention of reducing biomass production costs. This cost reduction is based on reduced harvesting costs due to high biomass densities, and reduced energy requirements due to improved mass transfer and lower pressure drop in the foam-bed photobioreactor. Foam generation could be controlled by adding foaming agents and employing homogenous gas distribution at the bottom of the photobioreactor. In order to refresh the gas phase entrapped in the bubbles, and ensure sufficient CO2 for microalgal growth, different foam break-up methods were evaluated. A packed bed filled with large hydrophobic beads resulted in efficient foam break-up at minimal pressure drop. It was shown that microalgae (Chlorella sorokiniana) can grow in the liquid channels of liquid foams stabilised by the protein Bovine Serum Albumin, and that the culture can withstand the physical processes of foam formation and foam break-up. An average growth rate of 0.10 h−1 was observed. The quantum yield of photosystem II photochemistry remained maximal during the reactor runs, indicating that photosynthesis was not impaired. The results obtained show that cultivation of microalgae in liquid foams is a promising new concept.
Original languageEnglish
Pages (from-to)1206-1214
JournalChemical Engineering Journal
Volume313
DOIs
Publication statusPublished - 2017

Fingerprint

Photobioreactors
foam
Foams
liquid
Liquids
pressure drop
Pressure drop
Biomass
Gases
Blowing agents
Photosystem II Protein Complex
Photosynthesis
Photochemical reactions
biomass
photochemistry
Packed beds
Quantum yield
production cost
Bovine Serum Albumin
Cost reduction

Keywords

  • Foam-bed reactor
  • Liquid-foam
  • Microalgae cultivation
  • Photobioreactor

Cite this

Janoska, Agnes ; Lamers, Packo P. ; Hamhuis, Alex ; van Eimeren, Yorick ; Wijffels, Rene H. ; Janssen, Marcel. / A liquid foam-bed photobioreactor for microalgae production. In: Chemical Engineering Journal. 2017 ; Vol. 313. pp. 1206-1214.
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abstract = "A novel concept of cultivating microalgae in liquid foam was developed with the intention of reducing biomass production costs. This cost reduction is based on reduced harvesting costs due to high biomass densities, and reduced energy requirements due to improved mass transfer and lower pressure drop in the foam-bed photobioreactor. Foam generation could be controlled by adding foaming agents and employing homogenous gas distribution at the bottom of the photobioreactor. In order to refresh the gas phase entrapped in the bubbles, and ensure sufficient CO2 for microalgal growth, different foam break-up methods were evaluated. A packed bed filled with large hydrophobic beads resulted in efficient foam break-up at minimal pressure drop. It was shown that microalgae (Chlorella sorokiniana) can grow in the liquid channels of liquid foams stabilised by the protein Bovine Serum Albumin, and that the culture can withstand the physical processes of foam formation and foam break-up. An average growth rate of 0.10 h−1 was observed. The quantum yield of photosystem II photochemistry remained maximal during the reactor runs, indicating that photosynthesis was not impaired. The results obtained show that cultivation of microalgae in liquid foams is a promising new concept.",
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A liquid foam-bed photobioreactor for microalgae production. / Janoska, Agnes; Lamers, Packo P.; Hamhuis, Alex; van Eimeren, Yorick; Wijffels, Rene H.; Janssen, Marcel.

In: Chemical Engineering Journal, Vol. 313, 2017, p. 1206-1214.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - A liquid foam-bed photobioreactor for microalgae production

AU - Janoska, Agnes

AU - Lamers, Packo P.

AU - Hamhuis, Alex

AU - van Eimeren, Yorick

AU - Wijffels, Rene H.

AU - Janssen, Marcel

PY - 2017

Y1 - 2017

N2 - A novel concept of cultivating microalgae in liquid foam was developed with the intention of reducing biomass production costs. This cost reduction is based on reduced harvesting costs due to high biomass densities, and reduced energy requirements due to improved mass transfer and lower pressure drop in the foam-bed photobioreactor. Foam generation could be controlled by adding foaming agents and employing homogenous gas distribution at the bottom of the photobioreactor. In order to refresh the gas phase entrapped in the bubbles, and ensure sufficient CO2 for microalgal growth, different foam break-up methods were evaluated. A packed bed filled with large hydrophobic beads resulted in efficient foam break-up at minimal pressure drop. It was shown that microalgae (Chlorella sorokiniana) can grow in the liquid channels of liquid foams stabilised by the protein Bovine Serum Albumin, and that the culture can withstand the physical processes of foam formation and foam break-up. An average growth rate of 0.10 h−1 was observed. The quantum yield of photosystem II photochemistry remained maximal during the reactor runs, indicating that photosynthesis was not impaired. The results obtained show that cultivation of microalgae in liquid foams is a promising new concept.

AB - A novel concept of cultivating microalgae in liquid foam was developed with the intention of reducing biomass production costs. This cost reduction is based on reduced harvesting costs due to high biomass densities, and reduced energy requirements due to improved mass transfer and lower pressure drop in the foam-bed photobioreactor. Foam generation could be controlled by adding foaming agents and employing homogenous gas distribution at the bottom of the photobioreactor. In order to refresh the gas phase entrapped in the bubbles, and ensure sufficient CO2 for microalgal growth, different foam break-up methods were evaluated. A packed bed filled with large hydrophobic beads resulted in efficient foam break-up at minimal pressure drop. It was shown that microalgae (Chlorella sorokiniana) can grow in the liquid channels of liquid foams stabilised by the protein Bovine Serum Albumin, and that the culture can withstand the physical processes of foam formation and foam break-up. An average growth rate of 0.10 h−1 was observed. The quantum yield of photosystem II photochemistry remained maximal during the reactor runs, indicating that photosynthesis was not impaired. The results obtained show that cultivation of microalgae in liquid foams is a promising new concept.

KW - Foam-bed reactor

KW - Liquid-foam

KW - Microalgae cultivation

KW - Photobioreactor

U2 - 10.1016/j.cej.2016.11.022

DO - 10.1016/j.cej.2016.11.022

M3 - Article

VL - 313

SP - 1206

EP - 1214

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

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