scholarly journals Sediment microbial fuel cells for wastewater treatment: challenges and opportunities

2015 ◽  
Vol 1 (3) ◽  
pp. 279-284 ◽  
Author(s):  
Bojun Xu ◽  
Zheng Ge ◽  
Zhen He
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Efficient Method ◽  
Microbial Fuel Cells ◽  
Energy Efficient ◽  
Challenges And Opportunities

Sediment microbial fuel cells can potentially be applied as an energy-efficient method for wastewater treatment.

scholarly journals Oxygen reduction reaction catalysts used in microbial fuel cells for energy-efficient wastewater treatment: a review

2016 ◽  
Vol 3 (5) ◽  
pp. 382-401 ◽  
Author(s):  
Heyang Yuan ◽  
Yang Hou ◽  
Ibrahim M. Abu-Reesh ◽  
Junhong Chen ◽  
Zhen He
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Energy Efficient ◽  
Reduction Reaction ◽  
Modification Procedure

This review comprehensively summarizes ORR catalysts used in MFCs with a focus on their synthesis/modification procedure, durability, economics, performance and stability.

Membrane aeration as an energy-efficient method for supplying oxygen to microbial fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 49787-49791 ◽  
Author(s):  
Yuli Yang ◽  
Xiaojin Li ◽  
Xiaoli Yang ◽  
Zhen He
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Efficient Method ◽  
Microbial Fuel Cells ◽  
Energy Efficient ◽  
Coulombic Efficiency ◽  
Membrane Aeration

Membrane aeration consumes less energy and enhances coulombic efficiency compared to diffused aeration in a microbial fuel cell.

scholarly journals Application of Air Cathode Microbial Fuel Cells for Energy Efficient Treatment of Dairy Wastewater

2021 ◽  
Vol 65 (2) ◽  
pp. 200-209
Author(s):  
Bálint Lóránt ◽  
Miklós Gyalai-Korpos ◽  
Igor Goryanin ◽  
Gábor Márk Tardy
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Removal Efficiency ◽  
Microbial Fuel Cells ◽  
Energy Efficient ◽  
Dairy Wastewater ◽  
Small Scale ◽  
Air Cathode ◽  
Efficient Treatment ◽  
Organic Removal

Microbial Fuel Cells (MFCs) offer a promising new solution for wastewater treatment due to their advantageous characteristics: lower energy demand and less excess sludge compared to the conventional activated sludge wastewater treatment technology. In this study, two systems of single chamber air cathode MFCs with a working volume of 14 L were investigated for the energy efficient treatment of dairy wastewater. Biomass-originated carbon cathode and noble-metal free cathode catalyst were applied to meet the demand for a lower investment cost. Influent chemical oxygen demand (COD) was in the range of 900 to 3830 mg L–1, while hydraulic retention time was ~ 2.4 days. Systems provided 156 mW m–3 and 170 mW m–3 maximum power densities and coulombic efficiencies of 11.5 % and 12.8 % in average. Organic removal efficiency of 71.1 ± 8.0 % was observed when influent COD was between 900 and 1500 mg L–1, however effluent quality and removal efficiency (67.9 ± 12.6 %) deteriorated as influent COD was increased (1500 – 3830 mg L–1). At high influent CODs (over 3000 mg L–1), an organic elimination rate of 0.82 ± 0.11 kg COD m–3 d–1 was calculated, that can be considered as the upper limit of organic removal in the systems. Based on the results, MFCs may offer a potential solution for small-scale dairy factories for the pretreatment of their effluent to meet the criteria for wastewater discharge to sewer systems. The modular MFC design also facilitates to tailor the system to actual capacity requirements.

Microbial fuel cells: Devices for real wastewater treatment, rather than electricity production

2021 ◽  
Vol 775 ◽  
pp. 145904
Author(s):  
Jaecheul Yu ◽  
Younghyun Park ◽  
Evy Widyaningsih ◽  
Sunah Kim ◽  
Younggy Kim ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Electricity Production ◽  
Real Wastewater

Brewery wastewater treatment using air-cathode microbial fuel cells

2008 ◽  
Vol 78 (5) ◽  
pp. 873-880 ◽  
Author(s):  
Yujie Feng ◽  
Xin Wang ◽  
Bruce E. Logan ◽  
He Lee
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Brewery Wastewater ◽  
Air Cathode

scholarly journals Bioelectricity production from tofu wastewater using microbial fuel cells with microalgae Spirulina sp as catholyte

2020 ◽  
Vol 202 ◽  
pp. 08007
Author(s):  
Wahyu Zuli Pratiwi ◽  
Hadiyanto Hadiyanto ◽  
Purwanto Purwanto ◽  
Muthi’ah Nur Fadlilah
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Organic Waste ◽  
Oxygen Demand ◽  
Salt Bridge ◽  
Cod Removal ◽  
Biofuel Production ◽  
Pre Treatment ◽  
Made In

Microalgae-Microbial Fuel Cells (MMFCs) are very popular to be used to treat organic waste. MMFCs can function as an energy-producing wastewater pre-treatment system. Wastewater can provide an adequate supply of nutrients, support the large capacity of biofuel production, and can be integrated with existing wastewater treatment infrastructure. The reduced content of Chemical Oxygen Demand (COD) is one way to measure the efficiency of wastewater treatment. MMFCs reactors are made in the form of two chambers (anode and cathode) both of which are connected by a salt bridge. Tofu wastewater as an anode and Spirulina sp as a cathode. To improve MFCs performance which is to obtain maximum COD removal and electricity generation, nutrient NaHCO3 as the nutrient carbon source for Spirulina sp was varied. The system running phase on 12 days. The results were Spirulina sp treated with MFCs technology has better growth than non-MFCs. The MMFC generated a maximum power density of 21.728 mW/cm2 and achieved 57.37% COD removal. These results showed that the combined process was effective in treating tofu wastewater.

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