Characterisation and perspectives of energetic use of dissolved gas recovered from anaerobic effluent with membrane contactor
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| Autores: | , , , |
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| Fecha de Publicación: | 2023 |
| Descripción: | Biogas is a source of renewable energy, and its production and use has been validated in anaerobic-based sewage treatment plants (STPs). However, in these systems, a large amount of methane is lost as dissolved methane (DCH4) in the liquid effluent. In this study, the characteristics and potential energetic uses of the gas recovered during the desorption of D-CH4 from anaerobic effluents with hollow fibre membrane contactors were investigated. A pilot-scale experiment was performed using sewage and two types of membrane contactors. The recovered gas contained considerable amounts of CH4, CO2, H2S, N2, and O2; therefore, a gas upgrade is required prior to its use as a biofuel. The recovery process should be energetically self-sustainable, and induce a considerable decrease in the STP carbon footprint. Recovering D-CH4 with membrane contactors could increase the energetic potential of anaerobic-based STPs up to 50 % and allow for more sustainable systems. |
| País: | Kérwá |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/105335 |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0960852422015565?via%3Dihub https://hdl.handle.net/10669/105335 https://doi.org/10.1016/j.biortech.2022.128223 |
| Palabra clave: | Anaerobic sewage treatment Degassing membrane Energy recovery Methane harvesting Carbon footprint Biogas Renewable energy sources Waste water |