dc.contributor.author | Nelabhotla, Anirudh Bhanu Teja | |
dc.contributor.author | Saldias Dinamarca, Carlos Antonio | |
dc.date.accessioned | 2020-04-17T10:40:07Z | |
dc.date.available | 2020-04-17T10:40:07Z | |
dc.date.created | 2019-08-08T12:26:21Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Applied Sciences. 2019, 9 (6), 1-13. | en_US |
dc.identifier.issn | 2076-3417 | |
dc.identifier.uri | https://hdl.handle.net/11250/2651503 | |
dc.description | This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited | en_US |
dc.description.abstract | Anaerobic digestion (AD) is a widely used technique to treat organic waste and produce biogas. This article presents a practical approach to increase biogas yield of an AD system using a microbial electrosynthesis system (MES). The biocathode in MES reduces carbon dioxide with the supplied electrons and protons (H+) to form methane. We demonstrate that the MES is able to produce biogas with over 90% methane when fed with reject water obtained from a local wastewater treatment plant. The optimised cathode potential was observed in the range of −0.70 V to −0.60 V and optimised feed pH was around 7.0. With autoclaved feed, these conditions allowed methane yields of about 9.05 mmol/L(reactor)-day. A control experiment was then carried out to make a comparison between open circuit and MES methanogenesis. The highest methane yield of about 22.1 mmol/L(reactor)-day was obtained during MES operation that performed 10–15% better than the open circuit mode of operation. We suggest and describe an integrated AD-MES system, by installing MES in the reject water loop, as a novel approach to improve the efficiency and productivity of existing waste/wastewater treatment plants. | en_US |
dc.language.iso | eng | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Bioelectrochemical CO2 Reduction to Methane: MES Integration in Biogas Production Processes | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2019 by the authors. Licensee MDPI, Basel, Switzerland. | en_US |
dc.source.pagenumber | 1-13 | en_US |
dc.source.volume | 9 | en_US |
dc.source.journal | Applied Sciences | en_US |
dc.source.issue | 6 | en_US |
dc.identifier.doi | 10.3390/app9061056 | |
dc.identifier.cristin | 1714828 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |