Comparative Study of Different Production Methods of Activated Carbon Cathodic Electrodes in Single Chamber MFC Treating Municipal Landfill Leachate
The treatment of real waste extracts with simultaneous energy production is currently under research. One method of addressing this dual task is using biochemical reactors named microbial fuel cells (MFCs). MFCs consist of a bioanode and a cathode where the oxygen reduction reaction (ORR) occurs. Ca...
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MDPI AG
2022-03-01
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| author | Pavlos K. Pandis Theofilos Kamperidis Konstantinos Bariamis Ilias Vlachos Christos Argirusis Vassilis N. Stathopoulos Gerasimos Lyberatos Asimina Tremouli |
| author_facet | Pavlos K. Pandis Theofilos Kamperidis Konstantinos Bariamis Ilias Vlachos Christos Argirusis Vassilis N. Stathopoulos Gerasimos Lyberatos Asimina Tremouli |
| author_sort | Pavlos K. Pandis |
| collection | DOAJ |
| description | The treatment of real waste extracts with simultaneous energy production is currently under research. One method of addressing this dual task is using biochemical reactors named microbial fuel cells (MFCs). MFCs consist of a bioanode and a cathode where the oxygen reduction reaction (ORR) occurs. Cathodes are currently under optimization regarding the nature of their support, their catalytic efficiency and their configurations. In this work, we present facile preparation methods for the production of activated carbon ceramic-supported cathodic electrodes produced with three different techniques (wash-coat, brush-coat, and ultrasound-assisted deposition/infiltration). The produced cathodic electrodes were tested in a single-chamber MFC, filled with the concentrated liquid residue, after the reverse osmosis (RO-CLR) treatment of leachate from a municipal waste landfill, in order to exploit their electrochemical potential for simultaneous waste treatment and energy production. The electrode produced utilizing 20 kHz ultrasounds proved to be more effective in terms of energy harvesting (10.7 mW/g·L of leachate) and wastewater treatment (COD removal 85%). Internal resistances of the ultrasound-produced electrodes are lower, as compared to the other two methods, opening new exploitation pathways in the use of ultrasound as a means in producing electrodes for microbial fuel cells. |
| first_indexed | 2024-03-09T20:09:44Z |
| format | Article |
| id | doaj.art-727d0720040146668b79735fd2587729 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T20:09:44Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-727d0720040146668b79735fd25877292023-11-24T00:21:57ZengMDPI AGApplied Sciences2076-34172022-03-01126299110.3390/app12062991Comparative Study of Different Production Methods of Activated Carbon Cathodic Electrodes in Single Chamber MFC Treating Municipal Landfill LeachatePavlos K. Pandis0Theofilos Kamperidis1Konstantinos Bariamis2Ilias Vlachos3Christos Argirusis4Vassilis N. Stathopoulos5Gerasimos Lyberatos6Asimina Tremouli7School of Chemical Engineering, Zografou Campus, National Technical University of Athens, 9 Heroon Polytechneiou St., 15780 Athens, GreeceSchool of Chemical Engineering, Zografou Campus, National Technical University of Athens, 9 Heroon Polytechneiou St., 15780 Athens, GreeceSchool of Chemical Engineering, Zografou Campus, National Technical University of Athens, 9 Heroon Polytechneiou St., 15780 Athens, GreeceSchool of Chemical Engineering, Zografou Campus, National Technical University of Athens, 9 Heroon Polytechneiou St., 15780 Athens, GreeceSchool of Chemical Engineering, Zografou Campus, National Technical University of Athens, 9 Heroon Polytechneiou St., 15780 Athens, GreeceLaboratory of Chemistry and Materials Technology, Department of Agricultural Development, Agrofood and Management of Natural Resources, Psachna Campus, National and Kapodistrian University of Athens, 34400 Evia, GreeceSchool of Chemical Engineering, Zografou Campus, National Technical University of Athens, 9 Heroon Polytechneiou St., 15780 Athens, GreeceSchool of Chemical Engineering, Zografou Campus, National Technical University of Athens, 9 Heroon Polytechneiou St., 15780 Athens, GreeceThe treatment of real waste extracts with simultaneous energy production is currently under research. One method of addressing this dual task is using biochemical reactors named microbial fuel cells (MFCs). MFCs consist of a bioanode and a cathode where the oxygen reduction reaction (ORR) occurs. Cathodes are currently under optimization regarding the nature of their support, their catalytic efficiency and their configurations. In this work, we present facile preparation methods for the production of activated carbon ceramic-supported cathodic electrodes produced with three different techniques (wash-coat, brush-coat, and ultrasound-assisted deposition/infiltration). The produced cathodic electrodes were tested in a single-chamber MFC, filled with the concentrated liquid residue, after the reverse osmosis (RO-CLR) treatment of leachate from a municipal waste landfill, in order to exploit their electrochemical potential for simultaneous waste treatment and energy production. The electrode produced utilizing 20 kHz ultrasounds proved to be more effective in terms of energy harvesting (10.7 mW/g·L of leachate) and wastewater treatment (COD removal 85%). Internal resistances of the ultrasound-produced electrodes are lower, as compared to the other two methods, opening new exploitation pathways in the use of ultrasound as a means in producing electrodes for microbial fuel cells.https://www.mdpi.com/2076-3417/12/6/2991municipal leachate treatmentmicrobial fuel cellsingle chamberwaste treatmentceramic cathodesultrasound-assisted deposition/infiltration |
| spellingShingle | Pavlos K. Pandis Theofilos Kamperidis Konstantinos Bariamis Ilias Vlachos Christos Argirusis Vassilis N. Stathopoulos Gerasimos Lyberatos Asimina Tremouli Comparative Study of Different Production Methods of Activated Carbon Cathodic Electrodes in Single Chamber MFC Treating Municipal Landfill Leachate Applied Sciences municipal leachate treatment microbial fuel cell single chamber waste treatment ceramic cathodes ultrasound-assisted deposition/infiltration |
| title | Comparative Study of Different Production Methods of Activated Carbon Cathodic Electrodes in Single Chamber MFC Treating Municipal Landfill Leachate |
| title_full | Comparative Study of Different Production Methods of Activated Carbon Cathodic Electrodes in Single Chamber MFC Treating Municipal Landfill Leachate |
| title_fullStr | Comparative Study of Different Production Methods of Activated Carbon Cathodic Electrodes in Single Chamber MFC Treating Municipal Landfill Leachate |
| title_full_unstemmed | Comparative Study of Different Production Methods of Activated Carbon Cathodic Electrodes in Single Chamber MFC Treating Municipal Landfill Leachate |
| title_short | Comparative Study of Different Production Methods of Activated Carbon Cathodic Electrodes in Single Chamber MFC Treating Municipal Landfill Leachate |
| title_sort | comparative study of different production methods of activated carbon cathodic electrodes in single chamber mfc treating municipal landfill leachate |
| topic | municipal leachate treatment microbial fuel cell single chamber waste treatment ceramic cathodes ultrasound-assisted deposition/infiltration |
| url | https://www.mdpi.com/2076-3417/12/6/2991 |
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