Halobacterium salinarum NRC-1 Sustains Voltage Production in a Dual-Chambered Closed Microbial Fuel Cell
Sustained bioenergy production from organisms that thrive in high salinity, low oxygen, and low nutrition levels is useful in monitoring hypersaline polluted environments. Microbial fuel cell (MFC) studies utilizing single species halophiles under salt concentrations higher than 1 M and as a closed...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2022/3885745 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832563493640863744 |
|---|---|
| author | Rodrigo Oliveira Goncalves Ali Salehi Marlon Publico Jimmy Nyende Nalina Nadarajah Soheil Ghoreyshi Padmaja Shastri |
| author_facet | Rodrigo Oliveira Goncalves Ali Salehi Marlon Publico Jimmy Nyende Nalina Nadarajah Soheil Ghoreyshi Padmaja Shastri |
| author_sort | Rodrigo Oliveira Goncalves |
| collection | DOAJ |
| description | Sustained bioenergy production from organisms that thrive in high salinity, low oxygen, and low nutrition levels is useful in monitoring hypersaline polluted environments. Microbial fuel cell (MFC) studies utilizing single species halophiles under salt concentrations higher than 1 M and as a closed microbial system are limited. The current study aimed to establish baseline voltage, current, and power density from a dual-chambered MFC utilizing the halophile Halobacterium salinarum NRC-1. MFC performance was determined with two different electrode sizes (5 cm2 and 10 cm2), under oscillating and nonoscillating conditions, as well as in a stacked series. A closed dual-chamber MFC system of 100 mL capacity was devised with Halobacterium media (4.3 M salt concentration) as both anolyte and catholyte, with H. salinarum NRC-1 being the anodic organism. The MFC measured electrical output over 7, 14, 28, and 42 days. MFC output increased with 5 cm2 sized electrodes under nonoscillating (p<0.0001) relative to oscillating conditions. However, under oscillating conditions, doubling the electrode size increased MFC output significantly (p=0.01). The stacked series MFC, with an electrode size of 10 cm2, produced the highest power density (1.2672 mW/m2) over 14 days under oscillation. Our results highlight the potentiality of H. salinarum as a viable anodic organism to produce sustained voltage in a closed-MFC system. |
| format | Article |
| id | doaj-art-5e6e4d32da9d47f58ab3d29078185fc8 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-5e6e4d32da9d47f58ab3d29078185fc82025-02-03T01:19:58ZengWileyThe Scientific World Journal1537-744X2022-01-01202210.1155/2022/3885745Halobacterium salinarum NRC-1 Sustains Voltage Production in a Dual-Chambered Closed Microbial Fuel CellRodrigo Oliveira Goncalves0Ali Salehi1Marlon Publico2Jimmy Nyende3Nalina Nadarajah4Soheil Ghoreyshi5Padmaja Shastri6Biomedical Engineering ProgramBiomedical Engineering ProgramBiotechnology ProgramBiomedical Engineering ProgramBiotechnology ProgramBiomedical Engineering ProgramBiotechnology ProgramSustained bioenergy production from organisms that thrive in high salinity, low oxygen, and low nutrition levels is useful in monitoring hypersaline polluted environments. Microbial fuel cell (MFC) studies utilizing single species halophiles under salt concentrations higher than 1 M and as a closed microbial system are limited. The current study aimed to establish baseline voltage, current, and power density from a dual-chambered MFC utilizing the halophile Halobacterium salinarum NRC-1. MFC performance was determined with two different electrode sizes (5 cm2 and 10 cm2), under oscillating and nonoscillating conditions, as well as in a stacked series. A closed dual-chamber MFC system of 100 mL capacity was devised with Halobacterium media (4.3 M salt concentration) as both anolyte and catholyte, with H. salinarum NRC-1 being the anodic organism. The MFC measured electrical output over 7, 14, 28, and 42 days. MFC output increased with 5 cm2 sized electrodes under nonoscillating (p<0.0001) relative to oscillating conditions. However, under oscillating conditions, doubling the electrode size increased MFC output significantly (p=0.01). The stacked series MFC, with an electrode size of 10 cm2, produced the highest power density (1.2672 mW/m2) over 14 days under oscillation. Our results highlight the potentiality of H. salinarum as a viable anodic organism to produce sustained voltage in a closed-MFC system.http://dx.doi.org/10.1155/2022/3885745 |
| spellingShingle | Rodrigo Oliveira Goncalves Ali Salehi Marlon Publico Jimmy Nyende Nalina Nadarajah Soheil Ghoreyshi Padmaja Shastri Halobacterium salinarum NRC-1 Sustains Voltage Production in a Dual-Chambered Closed Microbial Fuel Cell The Scientific World Journal |
| title | Halobacterium salinarum NRC-1 Sustains Voltage Production in a Dual-Chambered Closed Microbial Fuel Cell |
| title_full | Halobacterium salinarum NRC-1 Sustains Voltage Production in a Dual-Chambered Closed Microbial Fuel Cell |
| title_fullStr | Halobacterium salinarum NRC-1 Sustains Voltage Production in a Dual-Chambered Closed Microbial Fuel Cell |
| title_full_unstemmed | Halobacterium salinarum NRC-1 Sustains Voltage Production in a Dual-Chambered Closed Microbial Fuel Cell |
| title_short | Halobacterium salinarum NRC-1 Sustains Voltage Production in a Dual-Chambered Closed Microbial Fuel Cell |
| title_sort | halobacterium salinarum nrc 1 sustains voltage production in a dual chambered closed microbial fuel cell |
| url | http://dx.doi.org/10.1155/2022/3885745 |
| work_keys_str_mv | AT rodrigooliveiragoncalves halobacteriumsalinarumnrc1sustainsvoltageproductioninadualchamberedclosedmicrobialfuelcell AT alisalehi halobacteriumsalinarumnrc1sustainsvoltageproductioninadualchamberedclosedmicrobialfuelcell AT marlonpublico halobacteriumsalinarumnrc1sustainsvoltageproductioninadualchamberedclosedmicrobialfuelcell AT jimmynyende halobacteriumsalinarumnrc1sustainsvoltageproductioninadualchamberedclosedmicrobialfuelcell AT nalinanadarajah halobacteriumsalinarumnrc1sustainsvoltageproductioninadualchamberedclosedmicrobialfuelcell AT soheilghoreyshi halobacteriumsalinarumnrc1sustainsvoltageproductioninadualchamberedclosedmicrobialfuelcell AT padmajashastri halobacteriumsalinarumnrc1sustainsvoltageproductioninadualchamberedclosedmicrobialfuelcell |