Fabrication of anode electrode by a novel acrylic based graphite paint on stainless steel mesh and investigating biofilm effect on electrochemical behavior of anode in a single chamber microbial fuel cell

The current study deals with the performance of constructed wetland (CW) incorporating a microbial fuel cell (MFC) for wastewater treatment and electricity generation. The whole unit is referred to as CW-MFC. This technique involves two treatments; the first is an aerobic treatment which occurs in the upper layer of the system (cathode section) and the second is anaerobic biological treatment in the lower layer of the system (anode section). Two types of electrode material were tested; stainless steel and graphite. Three configurations for electrodes arrangement CW-MFC were used. In the first unit of CW-MFC, the anode was graphite plate (GPa) and cathode was also graphite plate (GPc), in the second CW-MFC unit, the anode was stainless steel mesh (SSMa) and the cathode was a couple of stainless steel plain (SSPc). The anode in the third CW-MFC unit was stainless steel mesh (SSMa) and the cathode was graphite plate (GPc). It was found that the maximum performance for electricity generation (9 mW/m3) was obtained in the unit with stainless steel mesh as anode and graphite plate as cathode. After 10 days of operation, the best result for COD removal (70%) was obtained in the unit with stainless steel mesh as anode and stainless steel plain as cathode. The effect of temperature was also investigated. The performance of unit operation for electricity generation was tested at three values of temperature; 30, 35 and 40oC. The best result was obtained at 40oC, at which the current density obtained was 80 mA/m3. A culture of Algae could grow in the unit in order to supply the cathodic region with oxygen.

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A novel stainless steel mesh/cobalt oxide hybrid electrode for efficient catalysis of oxygen reduction in a microbial fuel cell

Biosensors and Bioelectronics ◽

10.1016/j.bios.2013.12.015 ◽

2014 ◽

Vol 55 ◽

pp. 237-241 ◽

Cited By ~ 50

Author(s):

Xiao-Bo Gong ◽

Shi-Jie You ◽

Xiu-Heng Wang ◽

Jin-Na Zhang ◽

Yang Gan ◽

...

Keyword(s):

Stainless Steel ◽

Fuel Cell ◽

Oxygen Reduction ◽

Cobalt Oxide ◽

Microbial Fuel Cell ◽

Stainless Steel Mesh ◽

Steel Mesh

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Effect of Anode with Pretreatment on the Electricity Generation of a Single Chamber Microbial Fuel Cell

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.156-157.742 ◽

2010 ◽

Vol 156-157 ◽

pp. 742-746 ◽

Cited By ~ 3

Author(s):

Yu Lan Tang ◽

Xiao Wei Bi ◽

Hong Sun ◽

Jin Xiang Fu ◽

Man Peng ◽

...

Keyword(s):

Stainless Steel ◽

Fuel Cell ◽

Carbon Fiber ◽

Microbial Fuel Cell ◽

Electricity Generation ◽

Coulombic Efficiency ◽

Electronic Media ◽

Air Cathode ◽

Single Chamber ◽

Anode Modification

Electricity can be generated during the wastewater treatment by microbial fuel cell (MFC). Effect of the anode pretreatment method, anode modification and electronic media in anolyte on electricity generation of a single chamber microbial fuel cell (SCMFC) with an air cathode was investigated by performance measurement of the MFC during one cycle of generating electricity. Results show that the discharge time of MFCs with stainless steel anode pretreated by NH4Cl and HCl is longer than that with anode pretreated by the distilled water and NaOH; the performance of MFC with anode pretreated by NH4Cl is the best; comparison with stainless steel anode and adhere activated carbon, the current of MFC with the stainless steel anode adhere the carbon fiber is the maximum and its Coulombic efficiency is the highest; The electricity generation characteristics of the MFC with the anode adhered carbon fiber and pretreated by NH4Cl and the anolyte added the electronic media is the best. The action of the electronic medium and the NH4Cl on the MFC is synergism. It's of great significance that the research results improve the performance of MFC by anode pretreatment.

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