scholarly journals Catalyst Development of Microbial Fuel Cells for Renewable-Energy Production

2019 ◽  
Author(s):  
Masayuki Azuma ◽  
Yoshihiro Ojima
Keyword(s):  
Renewable Energy ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Energy Production ◽  
Catalyst Development ◽  
Renewable Energy Production

scholarly journals Insights into Advancements and Electrons Transfer Mechanisms of Electrogens in Benthic Microbial Fuel Cells

Membranes ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 205
Author(s):  
Mohammad Faisal Umar ◽  
Syed Zaghum Abbas ◽  
Mohamad Nasir Mohamad Ibrahim ◽  
Norli Ismail ◽  
Mohd Rafatullah
Keyword(s):  
Organic Matter ◽  
Renewable Energy ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Energy Production ◽  
Rice Paddy ◽  
Anodic Chamber ◽  
Rate Of Reaction ◽  
Renewable Energy Production ◽  
Transfer Mechanisms

Benthic microbial fuel cells (BMFCs) are a kind of microbial fuel cell (MFC), distinguished by the absence of a membrane. BMFCs are an ecofriendly technology with a prominent role in renewable energy harvesting and the bioremediation of organic pollutants through electrogens. Electrogens act as catalysts to increase the rate of reaction in the anodic chamber, acting in electrons transfer to the cathode. This electron transfer towards the anode can either be direct or indirect using exoelectrogens by oxidizing organic matter. The performance of a BMFC also varies with the types of substrates used, which may be sugar molasses, sucrose, rice paddy, etc. This review presents insights into the use of BMFCs for the bioremediation of pollutants and for renewable energy production via different electron pathways.

Simultaneous domestic wastewater treatment and renewable energy production using microbial fuel cells (MFCs)

2011 ◽  
Vol 64 (4) ◽  
pp. 904-909 ◽  
Author(s):  
S. Puig ◽  
M. Serra ◽  
M. Coma ◽  
M. D. Balaguer ◽  
J. Colprim
Keyword(s):  
Wastewater Treatment ◽  
Renewable Energy ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Energy Production ◽  
Nitrogen Loss ◽  
Domestic Wastewater ◽  
Air Cathode ◽  
Domestic Wastewater Treatment ◽  
Load Rate

Microbial fuel cells (MFCs) can be used in wastewater treatment and to simultaneously produce electricity (renewable energy). MFC technology has already been applied successfully in lab-scale studies to treat domestic wastewater, focussing on organic matter removal and energy production. However, domestic wastewater also contains nitrogen that needs to be treated before being discharged. The goal of this paper is to assess simultaneous domestic wastewater treatment and energy production using an air-cathode MFC, paying special attention to nitrogen compound transformations. An air-cathode MFC was designed and run treating 1.39 L d−1 of wastewater with an organic load rate of 7.2 kg COD m−3 d−1 (80% removal efficiency) and producing 1.42 W m−3. In terms of nitrogen transformations, the study demonstrates that two different processes took place in the MFC: physical–chemical and biological. Nitrogen loss was observed increasing in line with the power produced. A low level of oxygen was present in the anodic compartment, and ammonium was oxidised to nitrite and nitrate.

scholarly journals Assessing Renewable Energy Production Capabilities Using DEA Window and Fuzzy TOPSIS Model

Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 334 ◽  
Author(s):  
Chia-Nan Wang ◽  
Thanh-Tuan Dang ◽  
Hector Tibo ◽  
Duy-Hung Duong
Keyword(s):  
United States ◽  
Renewable Energy ◽  
Total Energy ◽  
United Arab Emirates ◽  
Energy Production ◽  
Evaluation Method ◽  
Scale Up ◽  
Renewable Energy Resources ◽  
Population Total ◽  
Renewable Energy Production

Climate change and air pollution are among the key drivers of energy transition worldwide. The adoption of renewable resources can act as a peacemaker and give stability regarding the damaging effects of fossil fuels challenging public health as well as the tension made between countries in global prices of oil and gas. Understanding the potential and capabilities to produce renewable energy resources is a crucial pre-requisite for countries to utilize them and to scale up clean and stable sources of electricity generation. This paper presents a hybrid methodology that combines the data envelopment analysis (DEA) Window model, and fuzzy technique for order of preference by similarity to ideal solution (FTOPSIS) in order to evaluate the capabilities of 42 countries in terms of renewable energy production potential. Based on three inputs (population, total energy consumption, and total renewable energy capacity) and two outputs (gross domestic product and total energy production), DEA window analysis chose the list of potential countries, including Norway, United Kingdom, Kuwait, Australia, Netherlands, United Arab Emirates, United States, Japan, Colombia, and Italy. Following that, the FTOPSIS model pointed out the top three countries (United States, Japan, and Australia) that have the greatest capabilities in producing renewable energies based on five main criteria, which are available resources, energy security, technological infrastructure, economic stability, and social acceptance. This paper aims to offer an evaluation method for countries to understand their potential of renewable energy production in designing stimulus packages for a cleaner energy future, thereby accelerating sustainable development.

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