Development of Manganese-Coated Graphite Electrode in a Dual-Chambered Fuel Cell for Selenite Removal and Bio-Electricity Generation from Wastewater Effluent by <i>Bacillus cereus</i>
A manganese oxide-coated cylindrical graphite cathode with a zinc anode was developed to treat wastewater containing selenite in a dual-chambered microbial fuel cell. COD and selenite removal in the anodic chamber by <i>Bacillus cereus</i> with energy generation were evaluated in batch m...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/6/2880 |
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| author | Jayanthi Velayudhan Sangeetha Subramanian |
| author_facet | Jayanthi Velayudhan Sangeetha Subramanian |
| author_sort | Jayanthi Velayudhan |
| collection | DOAJ |
| description | A manganese oxide-coated cylindrical graphite cathode with a zinc anode was developed to treat wastewater containing selenite in a dual-chambered microbial fuel cell. COD and selenite removal in the anodic chamber by <i>Bacillus cereus</i> with energy generation were evaluated in batch mode. A manganese dioxide-coated graphite cathode was tested for its surface morphology and chemical composition using scanning electron microscopy and dispersive energy analysis of X-rays. Compared to the non-coated graphite electrode, up to 69% enhancement was observed in the manganese dioxide-coated electrode voltage generation with 150 ppm selenite concentration. The fuel cell achieved a maximum power density of 1.29 W/m<sup>2</sup> with 91% selenite reduction and up to 74% COD (initial COD of 120 mg/L) removal for an initial selenite concentration from 100 to 150 ppm. The current study demonstrated the possibility of a modified cathode in enhancing energy generation and the use of microbial fuel cell technology to treat wastewater containing selenite. |
| first_indexed | 2024-03-11T06:37:00Z |
| format | Article |
| id | doaj.art-8e5dd96c24b64816a4dc69f230bdf645 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T06:37:00Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-8e5dd96c24b64816a4dc69f230bdf6452023-11-17T10:52:14ZengMDPI AGEnergies1996-10732023-03-01166288010.3390/en16062880Development of Manganese-Coated Graphite Electrode in a Dual-Chambered Fuel Cell for Selenite Removal and Bio-Electricity Generation from Wastewater Effluent by <i>Bacillus cereus</i>Jayanthi Velayudhan0Sangeetha Subramanian1School of Bioscience and Technology, Vellore Institute of Technology, Vellore 632014, IndiaSchool of Bioscience and Technology, Vellore Institute of Technology, Vellore 632014, IndiaA manganese oxide-coated cylindrical graphite cathode with a zinc anode was developed to treat wastewater containing selenite in a dual-chambered microbial fuel cell. COD and selenite removal in the anodic chamber by <i>Bacillus cereus</i> with energy generation were evaluated in batch mode. A manganese dioxide-coated graphite cathode was tested for its surface morphology and chemical composition using scanning electron microscopy and dispersive energy analysis of X-rays. Compared to the non-coated graphite electrode, up to 69% enhancement was observed in the manganese dioxide-coated electrode voltage generation with 150 ppm selenite concentration. The fuel cell achieved a maximum power density of 1.29 W/m<sup>2</sup> with 91% selenite reduction and up to 74% COD (initial COD of 120 mg/L) removal for an initial selenite concentration from 100 to 150 ppm. The current study demonstrated the possibility of a modified cathode in enhancing energy generation and the use of microbial fuel cell technology to treat wastewater containing selenite.https://www.mdpi.com/1996-1073/16/6/2880manganese dioxidegraphite cathodemicrobial fuel cellselenitewastewater treatmentCOD |
| spellingShingle | Jayanthi Velayudhan Sangeetha Subramanian Development of Manganese-Coated Graphite Electrode in a Dual-Chambered Fuel Cell for Selenite Removal and Bio-Electricity Generation from Wastewater Effluent by <i>Bacillus cereus</i> Energies manganese dioxide graphite cathode microbial fuel cell selenite wastewater treatment COD |
| title | Development of Manganese-Coated Graphite Electrode in a Dual-Chambered Fuel Cell for Selenite Removal and Bio-Electricity Generation from Wastewater Effluent by <i>Bacillus cereus</i> |
| title_full | Development of Manganese-Coated Graphite Electrode in a Dual-Chambered Fuel Cell for Selenite Removal and Bio-Electricity Generation from Wastewater Effluent by <i>Bacillus cereus</i> |
| title_fullStr | Development of Manganese-Coated Graphite Electrode in a Dual-Chambered Fuel Cell for Selenite Removal and Bio-Electricity Generation from Wastewater Effluent by <i>Bacillus cereus</i> |
| title_full_unstemmed | Development of Manganese-Coated Graphite Electrode in a Dual-Chambered Fuel Cell for Selenite Removal and Bio-Electricity Generation from Wastewater Effluent by <i>Bacillus cereus</i> |
| title_short | Development of Manganese-Coated Graphite Electrode in a Dual-Chambered Fuel Cell for Selenite Removal and Bio-Electricity Generation from Wastewater Effluent by <i>Bacillus cereus</i> |
| title_sort | development of manganese coated graphite electrode in a dual chambered fuel cell for selenite removal and bio electricity generation from wastewater effluent by i bacillus cereus i |
| topic | manganese dioxide graphite cathode microbial fuel cell selenite wastewater treatment COD |
| url | https://www.mdpi.com/1996-1073/16/6/2880 |
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