COMPARISON OF PERFORMANCE OF AN EARTHEN PLATE AND NAFION AS MEMBRANE SEPARATORS IN DUAL CHAMBER MICROBIAL FUEL CELLS

Microbial Fuel Cells (MFCs) adalah bioreaktor yang mengubah energi kimia dari senyawaorganik menjadi energi listrik melalui reaksi katalitik mikroorganisme dalam kondisi anaerob. Tujuandari penelitian ini adalah mengetahui pengaruh variasi media terlekat (attached growth media) danvariasi konsentrasi COD awal terhadap efisiensi penyisihan konsentrasi COD dan energi listrik yangdihasilkan. Reaktor MFCs didesain dalam bentuk dual-chamber yang dihubungkan menggunakanjembatan garam. Kerikil dan bioball digunakan sebagi variasi media lekat pada kompartemen anodadan konsentrasi limbah awal divariasikan dari 0%, 25%, 50%, dan 100% dari konsentrasi COD limbahcair industri tahu asli dengan cara melakukan pengenceran.Hasil penelitian menunjukkan bahwamedia lekat kerikil dengan konsentrasi 50% menghasilkan arus listrik rata-rata tertinggi 7,25 µA danenergi listrik sebesar 179,54 mWh. Voltase dan enegi listrik pada kedua variasi tersebut semakin harisemakin menurun. Variasi konsentrasi 25%, 50%, dan 100% menghasilkan penurunan nilai effisiensipenyisihan COD masing-masing 41,41%; 39,90% dan 18,26%.Pada variasi 100% menghasilkanenergi listrik lebih rendah dari pada 50%. Kemungkinan hal ini karena adanya senyawa sulfida yangberperan sebagai akseptor elektron. Pembentukan senyawa sulfida ditandai dengan terbentuknyawarna hitam pada substrat. Efisiensi coulombic (εC) akibat perbedaan media lekat dan variasikonsentrasi berada pada kisaran 0,001-0,035%. Rendahnya εC kemungkinan karena adanya produkproduk fermentasi dan biofilm pada elektroda anoda yang menghambat transfer elektron menujuelektroda anoda seperti biomassa, bahan organik terlarut, gas H2 dan gas CH4

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Industrial acid mine drainage and municipal wastewater co-treatment by dual-chamber microbial fuel cells

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2019.12.037 ◽

2020 ◽

Vol 45 (26) ◽

pp. 13757-13766 ◽

Cited By ~ 16

Author(s):

L.S. Vélez-Pérez ◽

J. Ramirez-Nava ◽

G. Hernández-Flores ◽

O. Talavera-Mendoza ◽

C. Escamilla-Alvarado ◽

...

Keyword(s):

Fuel Cells ◽

Acid Mine Drainage ◽

Microbial Fuel Cells ◽

Municipal Wastewater ◽

Mine Drainage ◽

Dual Chamber ◽

Acid Mine

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Accelerated Hexavalent Chromium [Cr (VI)] Reduction with Electrogenerated Hydrogen Peroxide in Microbial Fuel Cells

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.512-515.1525 ◽

2012 ◽

Vol 512-515 ◽

pp. 1525-1528 ◽

Cited By ~ 7

Author(s):

Liang Liu ◽

Yan Yang ◽

Ding Long Li

Keyword(s):

Hydrogen Peroxide ◽

Fuel Cells ◽

Fuel Cell ◽

Microbial Fuel Cell ◽

Hexavalent Chromium ◽

Microbial Fuel Cells ◽

Carbon Felt ◽

Dual Chamber ◽

Air Cathode ◽

Efficient Reduction

Cr(VI) was reduced at a carbon felt cathode in an air-cathode dual-chamber microbial fuel cell (MFC). The reduction of Cr(VI) was proven to be strongly associated with the electrogenerated H2O2 at the cathode. At pH 3.0, only 27.3% of Cr(VI) was reduced after 12h in the nitrogen-bubbling-cathode MFC, while complete reduction of Cr(VI) was achieved after 6h in the air-bubbling-cathode MFC in which the reduction of oxygen to H2O2was confirmed. The results showed that the efficient reduction of Cr(VI) could be achieved with an air-bubbling-cathode MFC.

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Using 3D Composite Electrode Materials for Electricity Generation from Swine Wastewater in a Dual-Chamber Microbial Fuel Cells

Journal of the Chinese Chemical Society ◽

10.1002/jccs.201600820 ◽

2017 ◽

Vol 64 (6) ◽

pp. 618-626 ◽

Cited By ~ 1

Author(s):

Mei-Feng Lai ◽

Ching-Wen Lou ◽

Jia-Horng Lin

Keyword(s):

Fuel Cells ◽

Microbial Fuel Cells ◽

Electricity Generation ◽

Composite Electrode ◽

Electrode Materials ◽

Swine Wastewater ◽

Dual Chamber ◽

3D Composite

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The Effect of Increasing Surface Area of Graphite Electrode on the Performance of Dual Chamber Microbial Fuel Cells

Proceeding International Conference on Science and Engineering ◽

10.14421/icse.v1.284 ◽

2017 ◽

Vol 1 ◽

pp. 137-140

Author(s):

Pedy Artsanti ◽

Sudarlin Sudarlin ◽

Eka Fadzillah Kirana

Keyword(s):

Fuel Cells ◽

Surface Area ◽

Power Density ◽

Microbial Fuel Cells ◽

Textile Industry ◽

Graphite Electrode ◽

Salt Bridge ◽

Anode Chamber ◽

Dual Chamber ◽

Real Wastewater

The effect of increasing surface area of graphite electrode on the performance of dual chamber Microbial Fuel Cells (MFC) was observed. The surface area of graphite electrode (anode and cathode) that was using in this experiment was 29.5cm2 and 44.5cm2 for the A and B reactor, respectively. The anode chamber contained mixed microorganism culture from real wastewater of textile industry and the cathode chamber contained 0.1M potassium permanganate electrolyte solution. The salt bridge was required to stabilize the charge between the anode and cathode chambers, and the electrodes attached to the anode and cathode chambers as the electron catcher. Both, the A and B reactor were observed for 72 hours of running time. The voltage and power density were found to increase with the increase in surface area of the graphite electrode. The highest power density was 93.93mWm-2 and 197.23mWm-2 that obtained at 36 hours and 48 hours on the A and B reactor, respectively. At the end of experiment, these MFCs system could also reduce COD by 28.6% and 15.6% on A and B reactor, respectively.

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