Usage of Ti-TiO2 Electrode in Microbial Fuel Cell to Enhance the Electricity Generation and its Biocompatibility

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.404.371 ◽

2013 ◽

Vol 404 ◽

pp. 371-376 ◽

Cited By ~ 7

Author(s):

Ergin Taskan ◽

Halil Hasar ◽

Bestamin Ozkaya

Keyword(s):

Fuel Cell ◽

Microbial Fuel Cell ◽

Power Output ◽

Electricity Generation ◽

Organic Content ◽

Synthetic Wastewater ◽

Anode Electrode

Microbial fuel cell (MFC) provides the generation of electricity as bacteria on anode electrode oxidize organic content present in wastewater. This study presents simultaneously the electricity generation from two different synthetic wastewater mixtures using a new electrode in both anode and cathode compartments. Results showed that power output increased excessively in the case of Ti-TiO2 electrode. MFC reactors were mainly dominated by Geobacter, Shewanella, Pseudomonas and Clostridium species. The molecular results also demonstrated that Ti-TiO2 electrode is biocompatibility and able to be used in MFC because these species are electricity producing bacteria.

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Performance of Microbial Fuel Cell for Wastewater Treatment and Electricity Generation

International Journal of Renewable Energy Development ◽

10.14710/ijred.2.2.131-135 ◽

2013 ◽

Vol 2 (2) ◽

pp. 131-135

Author(s):

Z Yavari ◽

H Izanloo ◽

K Naddafi ◽

H.R Tashauoei ◽

M Khazaei

Keyword(s):

Wastewater Treatment ◽

Fuel Cell ◽

Microbial Fuel Cell ◽

Electricity Generation ◽

Loading Rate ◽

Synthetic Wastewater ◽

Organic Loading Rate ◽

Organic Loading ◽

Sustainable Operation ◽

Cell Reactor

Renewable energy will have an important role as a resource of energy in the future. Microbial fuel cell (MFC) is a promising method to obtain electricity from organic matter andwastewater treatment simultaneously. In a pilot study, use of microbial fuel cell for wastewater treatment and electricity generation investigated. The bacteria of ruminant used as inoculums. Synthetic wastewater used at different organic loading rate. Hydraulic retention time was aneffective factor in removal of soluble COD and more than 49% removed. Optimized HRT to achieve the maximum removal efficiency and sustainable operation could be regarded 1.5 and 2.5 hours. Columbic efficiency (CE) affected by organic loading rate (OLR) and by increasing OLR, CE reduced from 71% to 8%. Maximum voltage was 700mV. Since the microbial fuel cell reactor considered as an anaerobic process, it may be an appropriate alternative for wastewater treatment

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Effect of ultrasonic and alkaline pretreatment on sludge degradation and electricity generation by microbial fuel cell

Water Science & Technology ◽

10.2166/wst.2010.192 ◽

2010 ◽

Vol 61 (11) ◽

pp. 2915-2921 ◽

Cited By ~ 18

Author(s):

J. Q. Jiang ◽

Q. L. Zhao ◽

K. Wang ◽

L. L. Wei ◽

G. D. Zhang ◽

...

Keyword(s):

Fuel Cell ◽

Chemical Oxygen Demand ◽

Microbial Fuel Cell ◽

Power Output ◽

Electricity Generation ◽

Oxygen Demand ◽

Alkaline Pretreatment ◽

Ultrasonic Pretreatment ◽

Volatile Solids ◽

Soluble Chemical Oxygen Demand

Both ultrasonic and alkaline pretreatment of excess sewage sludge were investigated to enhance organic degradation and electricity generation from sludge by the subsequent microbial fuel cell (MFC). The ultrasonic pretreatment showed that the degree of sludge disintegration was directly related to the energy input, ultrasonic density and duration. Alkaline pretreatment demonstrated that more soluble organic matters were released from the sludge with more NaOH dose and longer reaction time, and the degree of sludge disintegration within 30 min accounted for 45–76% of that for 24 h. When ultrasonic and alkaline pretreatment were combined, the released chemical oxygen demand (COD) was higher than those with ultrasonic or alkaline pretreatment alone. Ultrasonic and alkaline (pH=11) pretreatment could enhance electricity generation from sludge by the subsequent MFC, resulting in more degradation of total COD (TCOD) and volatile solids (VS). Slight change in power output from the MFC was observed due to the higher soluble chemical oxygen demand (SCOD) in the pretreated sludge. By using the combined ultrasonic and alkaline pretreatment of sludge, the removal efficiencies of TCOD and VS were increased from 27.1% to 61.0% and 35.2% to 62.9% in comparison with raw sludge, respectively, and the power output in MFC was slightly increased from 10.3 W/m3 to 12.5 W/m3.

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