Bio-Electrochemical Performance of a Ceramic Microbial Fuel Cell Treating Kitchen Waste Leachate: Effect of Organic Loading Rate and Anode Electrode Surface Area
Performance evaluation of a ceramic microbial fuel cell (CMFC) by varying organic strength, hydraulic retention time (HRT) and anode electrode surface area (AESA) to treat leachate generated from acidogenesis of kitchen waste (KW) was studied by the central composite design of experiment. The increa...
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MDPI AG
2022-10-01
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| Schriftenreihe: | Fermentation |
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| Online Zugang: | https://www.mdpi.com/2311-5637/8/10/544 |
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| author | Rishi Gurjar Manaswini Behera |
| author_facet | Rishi Gurjar Manaswini Behera |
| author_sort | Rishi Gurjar |
| collection | DOAJ |
| description | Performance evaluation of a ceramic microbial fuel cell (CMFC) by varying organic strength, hydraulic retention time (HRT) and anode electrode surface area (AESA) to treat leachate generated from acidogenesis of kitchen waste (KW) was studied by the central composite design of experiment. The increase in organic loading rate (OLR) positively affected power density (PD) while negatively influencing organic removal and coulombic efficiency (CE). This behavior is possible due to substrate inhibition and the coercive effect of low HRT, i.e., substrate washout, biofilm abrasion, and reduced contact period, while at high HRT, the volatile fatty acid (VFA) degradation improved. Since acetic acid is the final product of long-chain VFAs degradation, a pseudo consumption order for VFAs was obtained: butyric > propionic > acetic. The AESA aided organics removal and PD but had a negligible effect on CE. According to ANOVA, the COD removal was linearly modeled, while PD and CE were quadratic. The validation runs (VR) proved efficient as the highest COD removal was for VR2 (83.7 ± 3.6%), while maximum PD and CE values obtained were 0.224 ± 0.02 W/m<sup>3</sup> and 2.62 ± 0.33%, respectively, for VR3, supported by the lower anode potential. |
| first_indexed | 2024-03-09T03:40:34Z |
| format | Article |
| id | doaj.art-91423d97389144be8314bf429bf3bb3e |
| institution | Directory Open Access Journal |
| issn | 2311-5637 |
| language | English |
| last_indexed | 2024-03-09T03:40:34Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fermentation |
| spelling | doaj.art-91423d97389144be8314bf429bf3bb3e2023-12-03T14:41:54ZengMDPI AGFermentation2311-56372022-10-0181054410.3390/fermentation8100544Bio-Electrochemical Performance of a Ceramic Microbial Fuel Cell Treating Kitchen Waste Leachate: Effect of Organic Loading Rate and Anode Electrode Surface AreaRishi Gurjar0Manaswini Behera1School of Infrastructure, Indian Institute of Technology Bhubaneswar, Argul, Bhubaneswar 752050, Odisha, IndiaSchool of Infrastructure, Indian Institute of Technology Bhubaneswar, Argul, Bhubaneswar 752050, Odisha, IndiaPerformance evaluation of a ceramic microbial fuel cell (CMFC) by varying organic strength, hydraulic retention time (HRT) and anode electrode surface area (AESA) to treat leachate generated from acidogenesis of kitchen waste (KW) was studied by the central composite design of experiment. The increase in organic loading rate (OLR) positively affected power density (PD) while negatively influencing organic removal and coulombic efficiency (CE). This behavior is possible due to substrate inhibition and the coercive effect of low HRT, i.e., substrate washout, biofilm abrasion, and reduced contact period, while at high HRT, the volatile fatty acid (VFA) degradation improved. Since acetic acid is the final product of long-chain VFAs degradation, a pseudo consumption order for VFAs was obtained: butyric > propionic > acetic. The AESA aided organics removal and PD but had a negligible effect on CE. According to ANOVA, the COD removal was linearly modeled, while PD and CE were quadratic. The validation runs (VR) proved efficient as the highest COD removal was for VR2 (83.7 ± 3.6%), while maximum PD and CE values obtained were 0.224 ± 0.02 W/m<sup>3</sup> and 2.62 ± 0.33%, respectively, for VR3, supported by the lower anode potential.https://www.mdpi.com/2311-5637/8/10/544kitchen wasteleachatevolatile fatty acidsmicrobial fuel cellceramic membrane |
| spellingShingle | Rishi Gurjar Manaswini Behera Bio-Electrochemical Performance of a Ceramic Microbial Fuel Cell Treating Kitchen Waste Leachate: Effect of Organic Loading Rate and Anode Electrode Surface Area Fermentation kitchen waste leachate volatile fatty acids microbial fuel cell ceramic membrane |
| title | Bio-Electrochemical Performance of a Ceramic Microbial Fuel Cell Treating Kitchen Waste Leachate: Effect of Organic Loading Rate and Anode Electrode Surface Area |
| title_full | Bio-Electrochemical Performance of a Ceramic Microbial Fuel Cell Treating Kitchen Waste Leachate: Effect of Organic Loading Rate and Anode Electrode Surface Area |
| title_fullStr | Bio-Electrochemical Performance of a Ceramic Microbial Fuel Cell Treating Kitchen Waste Leachate: Effect of Organic Loading Rate and Anode Electrode Surface Area |
| title_full_unstemmed | Bio-Electrochemical Performance of a Ceramic Microbial Fuel Cell Treating Kitchen Waste Leachate: Effect of Organic Loading Rate and Anode Electrode Surface Area |
| title_short | Bio-Electrochemical Performance of a Ceramic Microbial Fuel Cell Treating Kitchen Waste Leachate: Effect of Organic Loading Rate and Anode Electrode Surface Area |
| title_sort | bio electrochemical performance of a ceramic microbial fuel cell treating kitchen waste leachate effect of organic loading rate and anode electrode surface area |
| topic | kitchen waste leachate volatile fatty acids microbial fuel cell ceramic membrane |
| url | https://www.mdpi.com/2311-5637/8/10/544 |
| work_keys_str_mv | AT rishigurjar bioelectrochemicalperformanceofaceramicmicrobialfuelcelltreatingkitchenwasteleachateeffectoforganicloadingrateandanodeelectrodesurfacearea AT manaswinibehera bioelectrochemicalperformanceofaceramicmicrobialfuelcelltreatingkitchenwasteleachateeffectoforganicloadingrateandanodeelectrodesurfacearea |