Utilization of the cyanobacteria Anabaena sp. ATCC 33047 in CO2 removal processes
| Autor: | F.G. Acién Fernández, E. Molina Grima, J.F. Sánchez Fernández, M.C. Cerón García, J. M. Fernández Sevilla, C.V. González López |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Cyanobacteria
Environmental Engineering Bioelectric Energy Sources Photochemistry Biofertilizer Carbohydrates Biomass Bioengineering chemistry.chemical_compound Bioreactors Polysaccharides Botany Organic matter Waste Management and Disposal Cells Cultured chemistry.chemical_classification biology Renewable Energy Sustainability and the Environment Anabaena Carbon fixation Temperature Proteins General Medicine Carbon Dioxide Hydrogen-Ion Concentration biology.organism_classification chemistry Biofuel Environmental chemistry Carbon dioxide Biotechnology |
| Zdroj: | Bioresource Technology. 100:5904-5910 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2009.04.070 |
| Popis: | In this paper the utilization of the cyanobacteria Anabaena sp. in carbon dioxide removal processes is evaluated. For this, continuous cultures of this strain were performed at different dilution rates; alternatives for the recovery of the organic matter produced being also studied. A maximum CO 2 fixation rate of 1.45 g CO 2 L −1 day −1 was measured experimentally, but it can be increased up to 3.0 g CO 2 L −1 day −1 outdoors. The CO 2 is mainly transformed into exopolysaccharides, biomass representing one third of the total organic matter produced. Organic matter can be recovered by sedimentation with efficiencies higher than 90%, the velocity of sedimentation being 2 · 10 −4 s −1 . The major compounds were carbohydrates and proteins with productivities of 0.70 and 0.12 g L −1 day −1 , respectively. The behaviour of the cultures of Anabaena sp. has been modelized, also the characteristics parameters requested to design separation units being reported. Finally, to valorizate the organic matter as biofertilizers and biofuels is proposed. |
| Databáze: | OpenAIRE |
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