scholarly journals Effect of different yeast extract concentration in membrane-less microbial fuel cell (ML-MFC) for electricity generation using food waste as carbon sources

2021 ◽  
Vol 2129 (1) ◽  
pp. 012098
Author(s):  
Nurul Najwa Adam Malik ◽  
Mohammad Mirza Mohammad Faizal ◽  
Husnul Azan Tajarudin ◽  
Noor Fazliani Shoparwe ◽  
Muaz Mohd Zaini Makhtar
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Yeast Extract ◽  
Food Waste ◽  
Waste Treatment ◽  
Carbon Sources ◽  
Cost Effective ◽  
Electrical Energy ◽  
Extract Concentration

Abstract Electricity constitutes one of the basic energies of our everyday life and approximately 14 % of the global population does not have the access to electricity. An abundance of waste is generated daily wherein food waste constitutes 45 % of the composition. A mediator-less and membrane-less single-chambered microbial fuel cell (ML-MFC) has the potential to serve as a cost-effective solution for food waste treatment and electricity power generation at no additional cost for the substrate. Food waste from E-Idaman Sdn. Bhd. Kedah was utilised in this study to generate electrical energy while focusing on the effect of different yeast extract concentrations on the performance of the ML-MFC. Electrogenic bacterial (EB) culture employed in this study acted as a catalyst for the power generation and was isolated from a previous ML-MFC study. The proximate analysis of food waste observed carbon constituting the greatest composition at 30.02 %. From the conducted preliminary study which compared three different strains of EB to be introduced in the ML-MFC, Bacillus subtillis sp. exhibited the highest specific growth rate, μ, (0.117 g. L−1/h) and shortest doubling time, Td, (5.93 h). One-factor-at-a-time (OFAT) method was utilised to evaluate the performance of the ML-MFC. 15 g/L yeast extract concentration obtained the greatest power density (628.05 × 106 mW/m2), substrate degradation efficiency (12.3 %), COD removal (99 mg/L) and biomass (44.32 mg/L). This showcased that the addition of extra yeast extract concentration into the food waste had boosted the efficiency of EB’s growth resulting in greater consumption of carbon source (removed COD value; bioremediation) in the food waste.

scholarly journals Bioelectricity of Various Carbon Sources on Series Circuit from Microbial Fuel Cell System using Lactobacillus plantarum

2018 ◽  
Vol 21 (2) ◽  
pp. 70-74
Author(s):  
Mufid Ainun ◽  
Linda Suyati
Keyword(s):  
Fuel Cell ◽  
Electric Power ◽  
Microbial Fuel Cell ◽  
Lactobacillus Plantarum ◽  
Electrical Power ◽  
Carbon Sources ◽  
Electrical Energy ◽  
Cell System ◽  
Power Measurement ◽  
Power Measurements

Study on bioelectrisity various carbon sources on the circuit series Microbial Fuel Cell using Lactobacillus plantarum has been conducted. This study aims to determine the electrical energy generated by various types of substrates in MFC and determe the effect of a series circuit of the electrical energy produced using Lactobacillus plantarum. The research stage consisted of preparation stages MFC components, electrical power measurements on variations in the type of substrate, and the measurement of electrical power in series circuit variation. Electrical power measurements were performed on a variety of substrate types by comparing the electrical power generated by the fructose, lactose and starch substrates while the electric power measurements with series variations are used in single series, series 2 and series 3. The results of the maximum electrical power measurement on the variation of fructose, lactose and starch substrate in MFC system using Lactobacillus plantarum were obtained respectively 10,26 mW; 63 mW and 27.47 mW. The maximum electric power generated in the MFC system uses Lactobacillus plantarum in a single circuit, series 2, series 3 series with lactose substrate obtained respectively of 63 mW, 164.74 mW and 290.51 mW. The measurement of electrical power showed that the lactose substrate produces a greater power than the other substrates. Series circuit capable of increasing electrical power in MFC system.

scholarly journals Effect of Microwave Treatment in Graphite Anode for Microbial Fuel Cell and Its Application in Biosensor

2019 ◽  
Vol 20 (2) ◽  
pp. 17-22
Author(s):  
Hamzah Abdalameer Lafta ◽  
Mahmood K. H. AL-Mashhadani
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Waste Treatment ◽  
Cost Effective ◽  
Microwave Treatment ◽  
Microwave Energy ◽  
Graphite Anode ◽  
Dual Chamber ◽  
Graphite Electrodes ◽  
Bacteria Growth

The electrode in the microbial fuel cell has a significant effect on cell performance. The treatment of the electrode is a crucial step to make the electrode surface more habitable for bacteria growth, thus, increases the power production as well as waste treatment. In the current study, two graphite electrodes were treated by a microwave. The first electrode was treated with 100W microwave energy, while the second one was treated with 600W microwave energy. There is a significant enhancement in the surface of the graphite anode after the pretreatment process. The results show an increase in the power density from 10 mW/m2 to 15 mW/m2 with 100w treatment and to 13.47 mW/m2 with 600w treatment. An organic sensor was obtained for the same waste material used, where the sensitivity was weak, ranging from 100 mg/L for organic matter to 150 g /L. The sensor was used once again for each substance with better results.  The sensitivity ranged from 25 g/L per liter to 150 g/L, while successful linearity has been gain. Therefore, it can conclude that the microbial fuel cell with dual chamber can be designed for a biosensor with the available and cost-effective material.

A promising bioelectrochemical reactor integrating membrane distillation and microbial fuel cell for dual advantages of power generation and water recovery

2020 ◽  
Vol 6 (10) ◽  
pp. 2776-2788
Author(s):  
Thanh Ngoc-Dan Cao ◽  
Shiao-Shing Chen ◽  
Hau-Ming Chang ◽  
Thanh Xuan Bui ◽  
I-Chieh Chien
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Energy Production ◽  
Electrical Energy ◽  
Membrane Distillation ◽  
Water Recovery ◽  
The Novel ◽  
Electrical Energy Production ◽  
Bioelectrochemical Reactor

Water recovery from wastewater was accomplished simultaneously with electrical energy production by the novel integration of distillation membrane and microbial fuel cell to create a system called membrane distillation microbial fuel cell.

scholarly journals Membrane-less microbial fuel cell: effect of pH on the electricity generation powered by municipal food waste

2021 ◽  
Vol 2129 (1) ◽  
pp. 012095
Author(s):  
Nurhazirah Mohd Azmi ◽  
Nadira Anandita ◽  
Husnul Azan Tajarudin ◽  
Noor Fazliani Shoparwe ◽  
Muaz Mohd Zaini Makhtar
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Food Waste ◽  
Fossil Fuels ◽  
Oxygen Demand ◽  
Cost Effective ◽  
Air Cathode ◽  
Optimum Ph ◽  
Electricity Power ◽  
Municipal Food Waste

Abstract Fossil fuels have supported the industrialization and economic growth of countries during the past centuries and it is clear that they cannot indefinitely sustain in a longer time. In this study, membrane-less microbial fuel cell (ML-MFC) with mediators-less and air cathode had potential solution to generate electricity power and at the same time could reduce the abundant of food waste (1.64 kg/daily, around 8 tonnes/year) which dumped in the landfill and it’s cost effective device. The ML-MFC operated electrochemically incorporate electrogenic bacteria (EB) acted as a biocatalyst in order to produce electricity. The performance and optimization performance of food waste was evaluated using one-factor-at-a-time (OFAT) method and it was focused to pH for power generation. To determine the generated electricity the polarization curve was used to evaluate the performance of ML-MFC. The chemical oxygen demand (COD) of food waste was studied. The optimization of pH condition in ML-MFC was ranging from 7 to 9. Results showed that pH 8 was the optimum pH for EB strain, Bacillus Subtilis, with the high voltage (807 mV), EB biomass (15.46 mg/L), and power density (373.3 mW/m2) generated. Clearly the pH environment condition affected the efficiency of ML-MFC performance. The increase in EB biomass also increased the voltage in the ML-MFC, proving that EB biomass and voltage were associated with growth.

Power generation and pollutants removal from landfill leachate in microbial fuel cell: Variation and influence of anodic microbiomes

2018 ◽  
Vol 247 ◽  
pp. 434-442 ◽  
Author(s):  
Muhammad Hassan ◽  
Huawei Wei ◽  
Huijing Qiu ◽  
Yinglong Su ◽  
Syed Wajahat H. Jaafry ◽  
...  
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Landfill Leachate ◽  
Pollutants Removal ◽  
Cell Variation
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