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Effect of Electrode Space on Internal Resistance and Wasted Sludge Removal of Low-cost Solid Phase Microbial Fuel Cell |
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| รหัสดีโอไอ | |
| Creator | Petch Pengchai |
| Title | Effect of Electrode Space on Internal Resistance and Wasted Sludge Removal of Low-cost Solid Phase Microbial Fuel Cell |
| Contributor | Phaphan Prachantasen |
| Publisher | Environmental Engineering Association of Thailand |
| Publication Year | 2564 |
| Journal Title | Thai Environmental Engineering Journal (TEEJ) |
| Journal Vol. | 35 |
| Journal No. | 1 |
| Page no. | 31-41 |
| Keyword | Solid-phase microbial fuel cell, electrode space, internal resistance |
| URL Website | https://so05.tci-thaijo.org/index.php/teej |
| Website title | Thai Environmental Engineering Journal (TEEJ) |
| ISSN | 2673-0359 |
| Abstract | Activated sludge process has been widely used in wastewater treatment plants. Excess sludge produced during the process has become a solid waste for many treatment plants to be managed. Solid-phase microbial fuel cell(SMFC)is a process which can remove the excess sludge as well as transform wasted sludge into electrical energy. In this research,3 low-costSMFCs were constructed and used to digest wasted activated sludge under the condition of3 electrode spaces, i.e.,4 cm, 6 cm, 8 cm. The experiment wasaimed to investigate the effect of electrode space on internal resistance and wasted sludge removal of the SMFCs. As a result, the relationship between electrode space and internal resistance was not always in direct variation. It changed along the operation period. In terms of sludge removal, the removal rates and efficiencies (6cm<8cm<4cm) conformed to the electricity generation (6cm<8cm<4cm) during 4-120-hr.operationperiod. At that period, SMFC with 4-cm electrode space displayed greatest performancein both electricity generation and wasted sludge removal.It removed 34.1% of the wasted sludge with the highest sludge removal rate(0.05-kgVS/L·day) and the lowest internal resistance(17.5-875.6 ohms).It also showed the highest electricity generationyield (83.7-μWhr/gVS) with 298.0-mW/m3maximum electrical power density (21.84 mW/m2) |
