Chemical absorption and CO2 biofixation via the cultivation of Spirulina in semicontinuous mode with nutrient recycle
| Autor: | Bruna Barcelos Cardias, Jorge Alberto Vieira Costa, Gabriel Martins da Rosa, Luiza Moraes, Michele da Rosa Andrade Zimmermann de Souza |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Nutrient cycle
Environmental Engineering Carbohydrates Biomass Bioengineering Carbon sequestration Photosynthesis chemistry.chemical_compound Spirulina Ethanolamine Ethanol fuel Waste Management and Disposal Spirulina (genus) biology Renewable Energy Sustainability and the Environment Environmental engineering food and beverages General Medicine Carbon Dioxide biology.organism_classification Pulp and paper industry chemistry Biofuel Carbon dioxide Carbohydrate Metabolism Biotechnology |
| Zdroj: | Bioresource Technology. 192:321-327 |
| ISSN: | 0960-8524 |
| Popis: | The chemical absorption of carbon dioxide (CO2) is a technique used for the mitigation of the greenhouse effect. However, this process consumes high amounts of energy to regenerate the absorbent and to separate the CO2. CO2 removal by microalgae can be obtained via the photosynthesis process. The objective of this study was to investigate the cultivation and the macromolecules production by Spirulina sp. LEB 18 with the addition of monoethanolamine (MEA) and CO2. In the cultivation with MEA, were obtained higher results of specific growth rate, biomass productivity, CO2 biofixation, CO2 use efficiency, and lower generation time. Besides this, the carbohydrate concentration obtained at the end of this assay was approximately 96.0% higher than the control assay. Therefore, Spirulina can be produced using medium recycle and the addition of MEA, thereby promoting the reduction of CO2 emissions and showing potential for areas that require higher concentrations of carbohydrates, such as in bioethanol production. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect