Innovative approaches for enhancing the cost-efficiency of biological methane abatement
Methane (CH4), which is considered the second most important greenhouse gas (GHG), represents nowadays 18 % of the total EU-28 GHG emissions and possesses a global warming potential 25 times higher than that of CO2 (in a 100 yr horizon). The methane produced during the anaerobic digestion of organic...
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| Formato: | tesis doctoral |
| Fecha de publicación: | 2018 |
| País: | España |
| Recursos: | Universidad de Valladolid |
| Repositorio: | UVaDOC. Repositorio Documental de la Universidad de Valladolid |
| OAI Identifier: | oai:uvadoc.uva.es:10324/31396 |
| Acesso em linha: | https://doi.org/10.35376/10324/31396 http://uvadoc.uva.es/handle/10324/31396 |
| Access Level: | acceso abierto |
| Palavra-chave: | Biorreactores Biogás |
| Resumo: | Methane (CH4), which is considered the second most important greenhouse gas (GHG), represents nowadays 18 % of the total EU-28 GHG emissions and possesses a global warming potential 25 times higher than that of CO2 (in a 100 yr horizon). The methane produced during the anaerobic digestion of organic waste (wastewater and organic solid waste) can be collected and combusted for the generation of electricity and/or heat, thus replacing fossil fuels. However, methane can be only used for energy generation when its concentration in the emission is higher than 20 %. Unfortunately, more than 56 % of the anthropogenic CH4 emissions contain CH4 concentrations below 5 %, which significantly limits the implementation of energy recovery-based treatment technologies. Therefore, cost-efficient abatement methods to mitigate the pernicious environmental effects of residual CH4 emissions are required. |
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