Simultaneous production of methane and acetate by thermophilic mixed culture from carbon dioxide in bioelectrochemical system
| Autor: | Ashock Pandey, Byoung-In Sang, Hyojeong Song, Okkyoung Choi, Young Gook Kim, Ji Sun Joo |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Environmental Engineering Bioengineering 010501 environmental sciences 01 natural sciences Methane chemistry.chemical_compound Mixed culture Electricity 010608 biotechnology Methane production Waste Management and Disposal 0105 earth and related environmental sciences Acetic Acid biology Renewable Energy Sustainability and the Environment Thermophile General Medicine Methanosaeta concilii Electrochemical Techniques Carbon Dioxide Pulp and paper industry biology.organism_classification chemistry Microbial population biology Carbon dioxide Bacteria |
| Zdroj: | Bioresource technology. 281 |
| ISSN: | 1873-2976 |
| Popis: | A thermophilic bioelectrochemical system was operated with mixed culture at 60 °C, while introducing only carbon dioxide. Methane production was initially observed in a membrane-less single chamber without a mediator, but eventually acetate was also found as 10.5 g/L after 137 days of operation. Comparing the microbial communities before and after the electricity supply using next-generation sequencing technology, acetoclastic methanogens such as Methanosaeta concilii were increased, and this result also indicates the production of acetate in bioelectrochemical CO2 conversion system. With the advent of sulfate-reducing bacteria, Desulfotomaculum peckii was considered to be an acetate production promoter. These high production results for both methane and acetate can be applied to CO2 storage using excess electricity for value-added chemicals. |
| Databáze: | OpenAIRE |
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