Study of a Pilot Scale Microbial Electrosynthesis Reactor for Organic Waste Biorefinery
Microbial electrochemical technologies now enable microbial electrosynthesis (MES) of organic compounds using microbial electrolysis cells handling waste organic materials. An electrolytic cell with an MES cathode may generate soluble organic molecules at a higher market price than biomethane, there...
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MDPI AG
2023-01-01
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| Online Access: | https://www.mdpi.com/1996-1073/16/2/591 |
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| author | Jiang-Hao Tian Rémy Lacroix Asim Ali Yaqoob Chrystelle Bureau Cédric Midoux Elie Desmond-Le Quéméner Théodore Bouchez |
| author_facet | Jiang-Hao Tian Rémy Lacroix Asim Ali Yaqoob Chrystelle Bureau Cédric Midoux Elie Desmond-Le Quéméner Théodore Bouchez |
| author_sort | Jiang-Hao Tian |
| collection | DOAJ |
| description | Microbial electrochemical technologies now enable microbial electrosynthesis (MES) of organic compounds using microbial electrolysis cells handling waste organic materials. An electrolytic cell with an MES cathode may generate soluble organic molecules at a higher market price than biomethane, thereby satisfying both economic and environmental goals. However, the long-term viability of bioanode activity might become a major concern. In this work, a 15-L MES reactor was designed with specific electrode configurations. An electrochemical model was established to assess the feasibility and possible performance of the design, considering the aging of the bioanode. The reactor was then constructed and tested for performance as well as a bioanode regeneration assay. Biowaste from an industrial deconditioning platform was used as a substrate for bioanode. The chemical oxygen demand (COD) removal rate in the anodic chamber reached 0.83 g day<sup>−1</sup> L<sup>−1</sup> of anolyte. Acetate was produced with a rate of 0.53 g day<sup>−1</sup> L<sup>−1</sup> of catholyte, reaching a maximum concentration of 8.3 g L<sup>−1</sup>. A potential difference (from 0.6 to 1.2 V) was applied between the bioanode and biocathode independent of reference electrodes. The active biocathode was dominated by members of the genus <i>Pseudomonas</i>, rarely reported so far for MES activity. |
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| id | doaj.art-5231e8ec27834e228c2ac19b833a1d71 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T12:54:47Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5231e8ec27834e228c2ac19b833a1d712023-11-30T22:01:15ZengMDPI AGEnergies1996-10732023-01-0116259110.3390/en16020591Study of a Pilot Scale Microbial Electrosynthesis Reactor for Organic Waste BiorefineryJiang-Hao Tian0Rémy Lacroix1Asim Ali Yaqoob2Chrystelle Bureau3Cédric Midoux4Elie Desmond-Le Quéméner5Théodore Bouchez6Université Paris-Saclay, INRAE, PROSE, 92160 Antony, France6TMIC Ingénieries, 9 Rue du Développement, 31320 Castanet-Tolosan, FranceUniversité Paris-Saclay, INRAE, PROSE, 92160 Antony, FranceUniversité Paris-Saclay, INRAE, PROSE, 92160 Antony, FranceUniversité Paris-Saclay, INRAE, PROSE, 92160 Antony, FranceUniversité Paris-Saclay, INRAE, PROSE, 92160 Antony, FranceUniversité Paris-Saclay, INRAE, PROSE, 92160 Antony, FranceMicrobial electrochemical technologies now enable microbial electrosynthesis (MES) of organic compounds using microbial electrolysis cells handling waste organic materials. An electrolytic cell with an MES cathode may generate soluble organic molecules at a higher market price than biomethane, thereby satisfying both economic and environmental goals. However, the long-term viability of bioanode activity might become a major concern. In this work, a 15-L MES reactor was designed with specific electrode configurations. An electrochemical model was established to assess the feasibility and possible performance of the design, considering the aging of the bioanode. The reactor was then constructed and tested for performance as well as a bioanode regeneration assay. Biowaste from an industrial deconditioning platform was used as a substrate for bioanode. The chemical oxygen demand (COD) removal rate in the anodic chamber reached 0.83 g day<sup>−1</sup> L<sup>−1</sup> of anolyte. Acetate was produced with a rate of 0.53 g day<sup>−1</sup> L<sup>−1</sup> of catholyte, reaching a maximum concentration of 8.3 g L<sup>−1</sup>. A potential difference (from 0.6 to 1.2 V) was applied between the bioanode and biocathode independent of reference electrodes. The active biocathode was dominated by members of the genus <i>Pseudomonas</i>, rarely reported so far for MES activity.https://www.mdpi.com/1996-1073/16/2/591carbon storageenvironmental biorefinerymicrobial electrolysismicrobial electrosynthesisupscaling |
| spellingShingle | Jiang-Hao Tian Rémy Lacroix Asim Ali Yaqoob Chrystelle Bureau Cédric Midoux Elie Desmond-Le Quéméner Théodore Bouchez Study of a Pilot Scale Microbial Electrosynthesis Reactor for Organic Waste Biorefinery Energies carbon storage environmental biorefinery microbial electrolysis microbial electrosynthesis upscaling |
| title | Study of a Pilot Scale Microbial Electrosynthesis Reactor for Organic Waste Biorefinery |
| title_full | Study of a Pilot Scale Microbial Electrosynthesis Reactor for Organic Waste Biorefinery |
| title_fullStr | Study of a Pilot Scale Microbial Electrosynthesis Reactor for Organic Waste Biorefinery |
| title_full_unstemmed | Study of a Pilot Scale Microbial Electrosynthesis Reactor for Organic Waste Biorefinery |
| title_short | Study of a Pilot Scale Microbial Electrosynthesis Reactor for Organic Waste Biorefinery |
| title_sort | study of a pilot scale microbial electrosynthesis reactor for organic waste biorefinery |
| topic | carbon storage environmental biorefinery microbial electrolysis microbial electrosynthesis upscaling |
| url | https://www.mdpi.com/1996-1073/16/2/591 |
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