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Increasing the economic viability of utilising CO2 from flue gas to produce biogas and bioplastic with photoautotrophic cyanobacteria

Project Leader
Drosg Bernhard, BOKU Project Leader
Energieforschung - Kooperative F&E-Projekte - Experimentelle Entwicklung
Type of Research
Technological Development
Project partners
ANDRITZ Energy & Environment GmbH (AE&E) , Waagner-Biro-Platz 1, 8074 Raaba, Austria.
Contact person: Dr. Günter Gronald;
Function of the Project Partner: Partner
EVN AG, EVN Platz, 2344 Maria Enzersdorf, Austria.
Contact person: Dr. Gerald Kinger;
Function of the Project Partner: Koordinator
Fritz Ines, Sub Projectleader
Silvestrini Lucia, Project Staff (bis 30.06.2016)
Troschl Clemens, Project Staff (bis 30.09.2018)
Ludwig Katharina, Project Staff
Hasoglu Tayfun, Project Staff (bis 30.09.2016)
BOKU Research Units
Institute for Environmental Biotechnology
Funded by
Austrian Research Promotion Agency, Sensengasse 1, 1090 Wien, Austria
EVN AG, EVN Platz, 2344 Maria Enzersdorf, Austria
The production of biogas and bioplastics (polyhydroxybutyric acid – PHB) from CO2-rich flue gases is a very promising approach. However, for an economically viable process, it is necessary to optimize the weak points of the process. The most important aim is to increase PHB yields from 5-10% to 30-40% of cell biomass. This will be achieved on the one hand by genetic strain improvement and on the other hand by screening for PHB producing wild type strains and a possible mutagenesis of them. A further approach is mixotrophic growth on fatty acid byproducts from the biogas hydrolysis step. In addition, cheap CO2-sources such as direct flue gas from caloric power plants or biomass combustion plants as well as CO2-rich off-gases from bioethanol production are used for growing cyanobacteria in a pilot-scale photobioreactor.
Environmental biotechnology; Industrial biotechnology; Fermentation;
biogas; cyanobacteria; polyhydroxybutyric acid; process optimisation;
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