scholarly journals The Effect of KMnO4 and K3[Fe(CN)6] Concentrations on Electrical Production in Fuel Cell Microbial System with Lactobacillus bulgaricus Bacteria in a Tofu Whey Substart

2018 ◽  
Vol 21 (1) ◽  
pp. 49-53 ◽  
Author(s):  
Ilmi Muftiana ◽  
Linda Suyati ◽  
Didik Setiyo Widodo
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Electrolyte Solution ◽  
Phosphate Buffer ◽  
Potassium Phosphate ◽  
Electrical Energy ◽  
Carbohydrate Content ◽  
Potential Difference ◽  
Lactobacillus Bulgaricus ◽  
Bioelectrochemical System

Microbial Fuel Cell (MFC) is a bioelectrochemical system that utilize metabolism of microorganisms to produce electrical energy. Microbial fuel cell is a bioelectrochemical system involving redox reactions that required an oxidizing agent in the process The purpose of this study was to determine the effect of various concentration of electrolyte solution KMnO4 and K3[Fe(CN)6] on electricity produced by microbial fuel cell system with Lactobacillus bulgaricus in tofu whey substrate. The principle of this study was bioelectrochemistry that changes chemical energy into electrical energy which involves a redox reaction by utilizing microbes. This study used a microbe Lactobacillus bulgaricus and substrate tofu whey with 0.39 % carbohydrate content in dual chamber MFC system using a salt bridge as a conductor of protons from anode to cathode. Anode compartment contains a mixture of microbes that have been cultured and phosphate buffer with pH 7 while cathode compartment contained electrolytes KMnO4 or K3[Fe(CN)6] in some various concentration that is 0.25 M; 0.2 M; 0.15 M; 0.1 M and 0.01 M with added potassium phosphate buffer pH 7. The MFC system using Lactobacillus bulgaricus and substrate tofu whey with 0.39% carbohydrate content and electrolyte solution KMnO4 generated maximum potential difference of 99.2 mV at concentration of 0.2 M which was higher than system with electrolyte solution K3[Fe(CN)6] 0.2 M that produced maximum potential difference of 48.6 mV.

scholarly journals Practical Maximum-Power Extraction in Single Microbial Fuel Cell by Effective Delivery through Power Management System

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2312
Author(s):  
Jeongjin Yeo ◽  
Taeyoung Kim ◽  
Jae Jang ◽  
Yoonseok Yang
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Management ◽  
Operation Time ◽  
Electrical Energy ◽  
Maximum Power ◽  
Extraction Technology ◽  
Power Extraction ◽  
Point Tracking ◽  
Power Point

Power management systems (PMSs) are essential for the practical use of microbial fuel cell (MFC) technology, as they replace the unstable stacking of MFCs with step-up voltage conversion. Maximum-power extraction technology could improve the power output of MFCs; however, owing to the power consumption of the PMS operation, the maximum-power extraction point cannot deliver maximum power to the application load. This study proposes a practical power extraction for single MFCs, which reserves more electrical energy for an application load than conventional maximum power-point tracking (MPPT). When experimentally validated on a real MFC, the proposed method delivered higher output power during a longer PMS operation time than MPPT. The maximum power delivery enables more effective power conditioning of various micro-energy harvesting systems.

EXPERIMENTAL STUDY OF BIOELECTRICITY-MICROBIAL FUEL CELL FOR ELECTRICITY GENERATION: PERFORMANCE CHARACTERIZATION AND CAPACITY IMPROVEMENT

2017 ◽  
Vol 79 (5-2) ◽  
Author(s):  
Zul Hasrizal Bohari ◽  
Nur Asyhikin Azhari ◽  
Nuraina Nasuha Ab Rahman ◽  
Mohamad Faizal Baharom ◽  
Mohd Hafiz Jali ◽  
...  
Keyword(s):  
Organic Matter ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Electrical Power ◽  
Electrical Energy ◽  
Sewage Water ◽  
Electricity Production ◽  
Sample Type ◽  
Series Of Experiments ◽  
The Right

Energy trending lately shown the need of new possible renewable energy. This paper studies about the capability and capacity generating of electricity by using Bio-electricity-Microbial Fuel Cell (Bio-MFC). Bio-MFC is the device that converts chemical energy to electrical energy by using microbes that exist in the sewage water. The energy contained in organic matter can be converted into useful electrical power. MFC can be operated by microbes that transfer electrons from anode to cathode for generating electricity. There are two major goals in this study. The first goal is to determine the performance characteristics of MFCs in this application. Specifically we investigate the relationship between the percentages of organic matter in a sample results in higher electricity production of MFCs power by that sample. As a result, the sewage (wastewater) chosen in the second series experiment because the sewage (wastewater) also produced the highest percentage of organic matter which is around 10%. Due to these, the higher percentage of organic matter corresponds to higher electricity production. The second goal is to determine the condition under which MFC work most efficiently to generating electricity. After get the best result of the combination for the electrode, which is combination of zinc and copper (900mV),the third series of experiments was coducted, that show the independent variable was in the ambient temperature. The reasons of these observations will be explained throughout the paper. The study proved that the electricity production of MFC can be increased by selecting the right condition of sample type, temperature and type of electrode. 

scholarly journals Electrical energy production from plant biomass: an analysis model development for Pandanus Amaryllifolius plant microbial fuel cell

2020 ◽  
Vol 18 (3) ◽  
pp. 1163
Author(s):  
Teng Howe Cheng ◽  
Kok Boon Ching ◽  
Chessda Uttraphan ◽  
Yee Mei Heong
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Plant Biomass ◽  
Coulombic Efficiency ◽  
Functional Model ◽  
Electrical Energy ◽  
Microbial Culture ◽  
Analysis Model ◽  
Plant Microbial Fuel Cell ◽  
Pandanus Amaryllifolius

Plant microbial fuel cell (P-MFC) is an electrochemical reactor that converts organic compounds to electrical energy through the catalytic reaction from electrochemically active bacteria (EAB). However, there is no sign of an attempt in developing the functional model in predicting the energy conversion and utilization of P-MFC. In this study, an analytic model is proposed to show the whole production process of the organic compound to electrical energy generation. <em>Pandanus Amaryllifolius</em> plant was used as sources of photosynthate, where biomass product from rhizodeposition, acetate was produced, and soil bacteria as the microbial culture, and air as the input to the cathode chamber. The proposed analytical model is able to predict the output of the P-MFC using the parameters from the experiment. The generated data from the model was then compared with the monitored data from the <em>Pandanus Amaryllifolius </em>P-MFC. The results show the electrical power output has a high similarity pattern with the bacterial growth curve model and able to achieve the coulombic efficiency of 95.32%.

scholarly journals Potential of Root Crops as Source of Electrical Energy

2013 ◽  
pp. 22-39
Author(s):  
Daniel Leslie Tan ◽  
Julie Tan ◽  
Mark Anthony Atanacio ◽  
Ruel Delantar
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Regression Models ◽  
Energy Recovery ◽  
Electrical Energy ◽  
Galvanic Cell ◽  
Waste Waters ◽  
Light Emitting ◽  
Root Crops ◽  
Different Types

Energy from edible and inedible root crop roots and tubers using galvanic cell and processing waste waters through microbial fuel cell (MFC) technology was harnessed. Electrolyte in the roots and tubers was tapped for galvanic cell and the microorganisms from waste waters act as catalyst in MFC. In galvanic cell, the optimized responses of badiang, cassava and sweetpotato were greatly affected by the surface area and distance between anode and cathode electrodes. An increase of nata-de-coco membrane size in MFC increased the voltage and current by 4.94 and 11.71 times, respectively. Increasing the width of anode also enhanced the responses. Different types of microorganisms were isolated from the biofilm anode of MFC. Their growth and proliferation which corresponded to the generation of electricity were also demonstrated in this study. A total of 54 bacterial isolates were collected from the biofilm at the anode of single-chamber MFC (SCMFC). The generated electricity observed using light emitting diodes (LED) showed potential both for galvanic and microbial fuel cell. The generated regression models are reliable tools in predicting desired outputs for future applications. These promising results demonstrated basic information on the electrical energy recovery from rootcrop waste waters and roots/tubers.

scholarly journals Bioelectricity Production from Microalgae-Microbial Fuel Cell Technology (MMFC)

2018 ◽  
Vol 156 ◽  
pp. 01017 ◽  
Author(s):  
Carlito da Costa ◽  
Hadiyanto
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Innovative Technology ◽  
Cell Technology ◽  
Fuel Cell Technology ◽  
Microalgae Culture ◽  
The One

Microbial fuel cell is an ecological innovative technology producing bioelectricity by utilizing microbes activity. Substituent energy is produced by changing the chemical energy to electrical energy through the catalytic reaction of microorganism. The research aims to find out the potency of bioelectricity produced by microalgae microbial fuel cell technology by utilizing the combination of tapioca wastewater and microalgae cultivation. This research is conducted through the ingredients preparation stage – microalgae culture, wastewater characterization, membrane and graphite activation, and the providing of other supporting equipment. The next stage is the MMFC arrangement, while the last one is bioelectricity measurement. The result of optimal bioelectricity production on the comparison of electrode 2 : 2, the power density is 44,33 mW/m2 on day 6, meanwhile, on that of 1 : 1, 20,18 mW/m2 power density on day 1 is obtained. It shows that bioelectricity can be produced from the combination of tapioca wastewater and microalgae culture through the microalgae-microbial fuel cell (MMFC) technology.This research is expected to be a reference for the next research particularly the one that observes the utilizing of microalgae as the part of new and renewable energy sources.

Multifactorial evaluation of the electrochemical response of a microbial fuel cell

RSC Advances ◽  
2014 ◽  
Vol 4 (45) ◽  
pp. 23815-23825 ◽  
Author(s):  
G. Lepage ◽  
G. Perrier ◽  
G. Merlin ◽  
N. Aryal ◽  
X. Dominguez-Benetton
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Phosphate Buffer ◽  
Vitreous Carbon ◽  
Buffer Concentration ◽  
Reticulated Vitreous Carbon ◽  
Air Cathode ◽  
Acetate Concentration ◽  
Physicochemical Factors ◽  
Solution Conductivity

A lab-scale microbial fuel cell (MFC) with a reticulated vitreous carbon (RVC) anode and a non-catalyzed multi-layered carbon air-cathode was electrochemically characterized under various physicochemical factors: temperature (15–25 °C), phosphate buffer concentration (4–8 mM), acetate concentration (7.1–14.3 mM), and equivalent solution conductivity (2.5–5 mS cm−1).

scholarly journals Generation of Electricity from Biological Source

2020 ◽  
Vol 3 (10) ◽  
pp. 143-145
Author(s):  
Amey Kulkarni ◽  
Amit Breed
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Salt Bridge ◽  
Cell System ◽  
Organic Substrate ◽  
Potential Difference ◽  
Anode Chamber ◽  
Renewable Energy Resources ◽  
Alternative Source ◽  
Micro Organisms

Rapid consumption of renewable energy resources has led to development of an alternative source of energy. Fuel cell technology is a reliable and sustainable source of energy which was developed. Microbial fuel cell is a type which uses active micro-organisms as catalysts for production of electricity. The micro-organisms degrade the organic substrate to release protons and electrons which generate a potential difference across the cell. Our study focused on the generation of electricity from human urine using microbial fuel cell system. Specific bacteria were used as inoculum at anaerobic anode chamber and salt solution was supplied at aerobic cathode. The chambers were connected using salt bridge which would facilitate ion transfer. This made the system cost effective. The potential difference generated was measured using digital multi-meter.

scholarly journals Removal of Coliphage MS2 Using a Microbial Fuel Cell Stack

Water ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 2756
Author(s):  
Liliana Alzate-Gaviria ◽  
Raul Tapia-Tussell ◽  
Jorge Domínguez-Maldonado ◽  
Rubi Chable-Villacis ◽  
Gabriela Rosiles González ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Bioelectrochemical System ◽  
Yeast Growth ◽  
Fecal Indicator ◽  
Fuel Cell Stack ◽  
Environmental Transmission ◽  
Working Volume ◽  
Treated Effluents ◽  
Logarithmic Reduction

Bioelectrochemical technologies offer alternative ways of treating wastewater and using this process to generate electricity. However, research in this area is just beginning to consider environmental transmission of viruses present in wastewater. The viral fecal indicator coliphage MS2 (the most frequently used pathogen model) was used in this study, since it is a well-known indigenous wastewater virus. The scaled-up bioelectrochemical system had a working volume of 167 L and coliphage MS2 concentration decreased from 8000 to 285 PFU/mL. The kinetics were quantified up to 15 h, after which excessive yeast growth in the system prevented further bacteriophage determination. The logarithmic reduction value (LRV) calculated within the first three hours was 3.8. From 4 hours to 14, LRV values were from 4.1 to 4.8, and in hour 15 the LRV increased to 5.3, yielding a more than 90% reduction. Overall, results obtained indicate that the scaled-up bioelectrochemical treatment system was efficient in reducing coliphage MS2 densities and could be used as a model to explore its further applicability for the reduction of viruses or pathogens in treated effluents.

scholarly journals Microalgae Microbial Fuel Cell (MMFC) using Chlorella vulgaris and “Batik” Wastewater as Bioelectricity

2021 ◽  
Vol 226 ◽  
pp. 00032
Author(s):  
Nadiyah Faizi Polontalo ◽  
Falvocha Alifsmara Joelyna ◽  
Abdullah Malik Islam Filardli ◽  
Hadiyanto Hadiyanto ◽  
Zainul Akmar Zakaria
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Chlorella Vulgaris ◽  
Alternative Energy ◽  
Human Growth ◽  
Electrical Energy ◽  
Anode Chamber ◽  
Graphite Electrodes ◽  
Environmental Friendly ◽  
Metabolic Activities

Nowadays, Indonesia is faced with an increase in human growth, and followed by increasing electricity demand. One of the environmental friendly alternative energy that can solve this problem is microbial fuel cell, which utilizes organic matter as a substrate of bacteria in carrying out its metabolic activities to produce electricity. In this study, investigated the electrical energy produced by Microalgae Microbial Fuel Cell (MMFC) using Chlorella vulgaris and “Batik” wastewater. This study aims to assess the performance of the MMFC system based on the influence of yeast (8 g L−1 and 4 g L−1), “Batik wastewater” concentration (50 % and 100 %), and graphite electrodes (1:1 and 2:2). The MMFC system was carried out by filling anode chamber with “Batik” wastewater and the cathode with C. vulgaris. MMFC simulation was operated for 7 d. Concentration of 100 % “Batik” wastewater and 2:2 number of electrodes gave the best result in MMFC with voltage 0.115 Volt, algae absorbance 0.666. The COD decreased from 824 mg L−1 to 752 mg L−1 after the MMFC. The addition of 8 g L−1 yeast gave the optimum of bioelectricity production reached 0.322 Volt and the microalgae grew until the absorbance reached 1.031.

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