Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 510797
Title Optimizing Carbon Dioxide Utilization for Microalgae Biofilm Cultivation
Author(s) Blanken, W.M.; Schaap, S.; Theobald, S.; Rinzema, A.; Wijffels, R.H.; Janssen, M.G.J.
Source Biotechnology and Bioengineering 114 (2017)4. - ISSN 0006-3592 - p. 769 - 776.
DOI http://dx.doi.org/10.1002/bit.26199
Department(s) Bioprocess Engineering
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2017
Abstract The loss of carbon dioxide (CO2) to the environment
during microalgae cultivation is undesirable for both environmental
and economic reasons. In this study, a phototrophic biofilm growth
model was developed and validated with the objective to maximize
both CO2 utilization efficiency and production of microalgae in
biofilms. The model was validated in growth experiments with CO2
as the limiting substrate. The CO2 utilization and biomass
productivity were maximized by changing the gas flow rate, the
number of biofilm reactors in series and gas composition. Based on
simulations, the maximum CO2 utilization efficiency that was
reached was 96% based on a process employing flue gas. The
corresponding drop in productivity was only 2% in comparison to
the non-CO2 limited reference situation. In order to achieve this, 25
biofilm reactors units, or more,must be operated in series. Based on
these results, it was concluded that concentrated CO2 streams and
plug flow behavior of the gaseous phase over the biofilm surface are
essential for high productivity and CO2 utilization efficiency.
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