High power microbial fuel cell operating at low temperature using cow dung waste

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Nurettin Çek ◽  
Ahmet Erensoy ◽  
Namık Ak ◽  
Hasan Uslu
Keyword(s):  
Low Temperature ◽  
Microbial Fuel Cells ◽  
Green Technology ◽  
Proton Exchange ◽  
Production Performance ◽  
Raw Material ◽  
Electricity Production ◽  
Cow Dung ◽  
Anode Chamber ◽  
Cow Manure

Abstract Moving towards green technology, alternatives to current detrimental, unsustainable, and expensive energy applications for eco-friendly energy are attracting great attention. Resource recycling and the convenient treatment of animal waste to diminish its nature impact are recently momentous subjects. Microbial fuel cells used cow waste have remarkable potential in electrical energy generation for clean, renewable and sustainable operation. In this study, double-chambered MFC was manufactured using cow manure as raw material at the anode chamber, graphite as the anode and cathode electrodes, fountain water in the cathode chamber, and proton exchange membrane. Because bacteria a catalytic reaction for the latent chemical energy of the cow manure was effectuated as a result of this, MFCs produced electricity. Electricity production performance of this MFC at low temperature (0–10 °C) conditions was examined. This MFC produced a maximum of 204.9 ± 0.1 mV open circuit voltage and 57.387 mW/m2 power density under low temperature conditions. In particular, the sustainability and applicability of MFCs have been increased thanks to this operation done at low temperatures (0–10 °C).

scholarly journals Using Shewanella Oneidensis MR1 as a Biocatalyst in a Microscale Microbial Fuel Cell

2013 ◽  
Author(s):  
Jie Yang ◽  
Sasan Ghobadian ◽  
Reza Montazami ◽  
Nastaran Hashemi
Keyword(s):  
Power Generation ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Shewanella Oneidensis ◽  
Proton Exchange ◽  
Carbon Cloth ◽  
Anode Chamber

Microbial fuel cell (MFC) technology is a promising area in the field of renewable energy because of their capability to use the energy contained in wastewater, which has been previously an untapped source of power. Microscale MFCs are desirable for their small footprints, relatively high power density, fast start-up, and environmentally-friendly process. Microbial fuel cells employ microorganisms as the biocatalysts instead of metal catalysts, which are widely applied in conventional fuel cells. MFCs are capable of generating electricity as long as nutrition is provided. Miniature MFCs have faster power generation recovery than macroscale MFCs. Additionally, since power generation density is affected by the surface-to-volume ratio, miniature MFCs can facilitate higher power density. We have designed and fabricated a microscale microbial fuel cell with a volume of 4 μL in a polydimethylsiloxane (PDMS) chamber. The anode and cathode chambers were separated by a proton exchange membrane. Carbon cloth was used for both the anode and the cathode. Shewanella Oneidensis MR-1 was chosen to be the electrogenic bacteria and was inoculated into the anode chamber. We employed Ferricyanide as the catholyte and introduced it into the cathode chamber with a constant flow rate of approximately 50 μL/hr. We used trypticase soy broth as the bacterial nutrition and added it into the anode chamber approximately every 15 hours once current dropped to base current. Using our miniature MFC, we were able to generate a maximum current of 4.62 μA.

Microbial diversity and population dynamics of activated sludge microbial communities participating in electricity generation in microbial fuel cells

2008 ◽  
Vol 58 (11) ◽  
pp. 2195-2201 ◽  
Author(s):  
D. Ki ◽  
J. Park ◽  
J. Lee ◽  
K. Yoo
Keyword(s):  
Fuel Cells ◽  
Activated Sludge ◽  
Microbial Diversity ◽  
Microbial Fuel Cells ◽  
Electricity Generation ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Community Analysis ◽  
Electricity Production ◽  
Anode Chamber

In this study, we performed microbial community analysis to examine microbial diversity and community structure in microbial fuel cells (MFCs) seeded with activated sludge from a municipal wastewater treatment plant in South Korea. Because anode-attached biofilm populations are particularly important in electricity transfer, the ecological characteristics of anode-attached biofilm microbes were explored and compared with those of microbes grown in suspension in an anode chamber. 16S rDNA-based community analysis showed that the degree of diversity in anode-attached biofilms was greater than that of the originally seeded activated sludge as well as that of the suspension-grown microbes in the anode bottle. In addition, Bacteroidetes and Clostridia grew preferentially during MFC electricity generation. Further phylogenetic analysis revealed that the anode biofilm populations described in this work are phylogenetically distant from previously characterized MFC anode biofilm microbes. These findings suggest that a phylogenetically diverse set of microbes can be involved in the electricity generation of MFC anode compartments, and that increased microbial diversity in anode biofilms may help to stabilize electricity production in the MFC.

scholarly journals Bioelectricity Production and Comparative Evaluation of Electrode Materials in Microbial Fuel Cells Using Indigenous Anode-Reducing Bacterial Community from Wastewater of Rice-Based Industries

2017 ◽  
Vol 6 (1) ◽  
pp. 83-92
Author(s):  
Shailesh Kumar Jadhav ◽  
Reena Meshram
Keyword(s):  
Fuel Cells ◽  
Bacterial Community ◽  
Microbial Fuel Cells ◽  
Comparative Evaluation ◽  
Electrode Materials ◽  
Production Capacity ◽  
Proton Exchange ◽  
Economic Feasibility ◽  
Electricity Production ◽  
Electrochemical Systems

Microbial fuel cells (MFCs) are the electrochemical systems that harness the electricity production capacity of certain microbes from the reduction of biodegradable compounds. The present study aimed to develop mediator-less MFC without using expensive proton exchange membrane. In the present study, a triplicate of dual-chamber, mediator-less MFCs was operated with two local rice based industrial wastewater to explore the potential of this wastewater as a fuel option in these electrochemical systems. 30 combinations of 6 electrodes viz. Carbon (14 cm × 1.5 cm), Zn (14.9 cm × 4.9 cm), Cu (14.9 cm × 4.9 cm), Sn (14.1cm × 4.5cm), Fe (14cm × 4cm) and Al (14cm × 4.5 cm) were evaluated for each of the wastewater samples. Zn-C as anode-cathode combination produced a maximum voltage that was 1.084±0.016V and 1.086±0.028 and current of 1.777±0.115mA and 1.503±0.120 for KRM and SSR, respectively. In the present study, thick biofilm has been observed growing in MFC anode. Total 14 bacterial isolates growing in anode were obtained from two of the wastewater. The dual chambered, membrane-less and mediator-less MFCs were employed successfully to improve the economic feasibility of these electrochemical systems to generate bioelectricity and wastewater treatment simultaneously.Keywords: Membrane-less, Microbial Fuel Cells, Biofilm, Wastewater, Electrogenic.Article History: Received June 25th 2016; Received in revised form Dec 15th 2016; Accepted January 5th 2017; Available onlineHow to Cite This Article: Reena, M. and Jadhav, S. K. (2017) Bioelectricity production and Comparative Evaluation of Electrode Materials in Microbial Fuel Cells using Indigenous Anode-reducing Bacterial Community from Wastewater of Rice-based Industries. International Journal of Renewable Energy Develeopment, 6(1), 83-92.http://dx.doi.org/10.14710/ijred.6.1.83-92  

scholarly journals Generation of Bioelectricity from Organic Fruit Waste

2021 ◽  
Vol 77 (3) ◽  
pp. 6-14
Author(s):  
Segundo Rojas Flores ◽  
Renny Nazario-Naveda ◽  
Daniel Delfín-Narciso ◽  
Moises Gallozo Cardenas ◽  
Natalia Diaz Diaz ◽  
...  
Keyword(s):  
Microbial Fuel Cells ◽  
Low Cost ◽  
Electricity Production ◽  
Anode Chamber ◽  
Copper Electrodes ◽  
A Value ◽  
Three Samples ◽  
Residual Sludge ◽  
Tomato Pulp ◽  
Organic Fruit

This research proposes an alternative for companies and farmers through the production of electricity using microbial fuel cells (MFCs) using waste from export products. Nine MFCs were manufactured with zinc and copper electrodes; and as substrates, pineapple, potato and tomato pulp wastes were used in the anode chamber, and residual sludge in the cathode chamber. It was observed that the MFCs with pineapple substrate generated higher values of the electrical parameters, resulting in voltage and current values of 0.3484 ± 0.003 V and 27.88 ± 0.23 mA, respectively. It was also observed that the maximum power density was 0.967 ± 0.059 W/cm2 at a current density of 0.04777 A/cm2 for the same substrate. Acid pH values were observed in the three samples, while the conductivity reached its maximum value on day 23 (69.47 ± 0.91 mS/cm) which declined until the last day of monitoring; the turbidity values increased abruptly after day 22 until the last day where a value of 200.3 ± 2.52 UNT was observed for the pineapple substrate. The scanning electron microscopy for the pineapple substrate MFC electrodes shows the formation of a porous biofilm on the zinc and copper electrodes. These results show that a new form of electricity production has been achieved by generating high voltage and current values, using low-cost materials.

scholarly journals Recycling of three different types of rural wastes employing vermicomposting technology by Eisenia fetida at low temperature

2017 ◽  
Vol 19 (4) ◽  
pp. 601-606 ◽  
Keyword(s):  
Low Temperature ◽  
Eisenia Fetida ◽  
Raw Material ◽  
Cow Dung ◽  
Kitchen Waste ◽  
Medium Components ◽  
Different Types ◽  
Mature Compost ◽  
Macro And Micronutrients

This study was conducted to investigate the recycling of rural wastes employing vermicomposting technology by Eisenia fetida. Three medium including kitchen waste, rotting foliage and cow dung were performed in 20 treatments. Results showed that in all 20 treatments the quality of produced compost was in the standard range. Due to the high levels of nitrogen in raw material of some treatments, (e.g. treatments that percentage of cow dung and kitchen waste are zero such as M, N, O, Q, R and U) the concentration of N in mature compost was higher than other treatments. The type of raw material in the medium has particular importance on the quality of compost. So that any change in the composition due to changes in the presence or absence of macro and micronutrients can influence the compost production process and reproduction of worm. Therefore, optimization of medium components, as shown in this study is of specific importance that has effect on the vermicomposting at low temperature.

scholarly journals Improvement of Wastewater Treatment Performance and Power Generation in Microbial Fuel Cells by Enhancing Hydrolysis and Acidogenesis, and by Reducing Internal Losses

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2309 ◽  
Author(s):  
Miguel López Zavala ◽  
Pamela Torres Delenne ◽  
Omar González Peña
Keyword(s):  
Power Generation ◽  
Microbial Fuel Cells ◽  
Proton Exchange Membrane ◽  
Municipal Wastewater ◽  
Domestic Wastewater ◽  
Electric Circuit ◽  
Proton Exchange ◽  
Anode Chamber ◽  
Practical Applications ◽  
Treatment Performance

In this study, biodegradation performance and power generation in MFCs were improved. Domestic wastewater was biodegraded in a dual-chamber MFC system equipped with a DupontTM Nafion® 117 proton exchange membrane, graphite electrodes (8.0 cm × 2.5 cm × 0.2 cm) in both chambers and an external electric circuit with a 100 Ω resistor. Experiments were conducted using an anaerobic inoculum that was prepared onsite by acclimating mixed liquor from municipal wastewater. Aqueous hydrochloric acid (0.1 M HCl, pH 1.82) was used as the electrolyte in the cathode chamber. Free-oxygen conditions were promoted in both chambers by means of a vacuum (77.3 kPa). Low pH (< 5) and mixing conditions were maintained in the anode chamber and all the tests were carried out at 25 ± 1 °C. These conditions enhanced the hydrolysis and acidogenesis, inhibited the methanogenesis and reduced the internal losses. All of them together contributed to improve the treatment performance and power generation of the MFCs. Results of batch tests show COD reductions of up to 95%, voltages peaks of 0.954 V, maximum power densities on the order of 2.1 W·m−2 and 36.9 W·m−3, and energy generation peaks of 99.4 J·mg−1 COD removed. These values are greater than those reported in the MFCs’ literature for municipal wastewater (26 mW·m−2–146 mW·m−2), industrial wastewater (419 mW·m−2) and culture medium solutions (1.17 W·m−2), and similar to those of glucose (3.6 W·m−2). Thus, these results can contribute to further enhancing the energy generated in MFCs and moving forward to make the MFCs more ready for practical applications of bioenergy production.

The use of different electrode materials for electricity production in a microbial fuel cell using a Klebsiella oxytoca microorganism under different operating conditions

2020 ◽  
Vol 13 ◽  
Author(s):  
Israa K. Abdul-Wahid ◽  
Saleem M. Obyed ◽  
Basim O. Hasan
Keyword(s):  
Reynolds Number ◽  
Activated Carbon ◽  
Microbial Fuel Cells ◽  
Electrode Materials ◽  
High Current Density ◽  
Klebsiella Oxytoca ◽  
Operating Conditions ◽  
Low Flow ◽  
Electricity Production ◽  
Anode Chamber

: Microbial fuel cells (MFCs) have been developed impressively over the recent years. In order to take this technology from research to application, the performance of these systems needs to be further investigated and optimized. The electrode materials and operating conditions play a vital role in MFCs performance. In the current work, dual chamber MFC was used to investigate the performance of different electrode materials under stationary and flow conditions. Microorganism solution of Klebsiella oxytoca and Citrobacter Freundii inoculum was used in anode chamber. Three electrode materials were investigated namely; activated carbon, graphite, and titanium. High current density and power output were obtained by activated carbon electrode and graphite, while titanium showed poor performance for bio-electricity production. The low flow velocity (or Reynolds number) in catholyte was found to enhance the energy production, while the high velocity caused a reduction in the produced current. The aeration of cathode chamber had a negative effect on the produced current due to the transfer of dissolved oxygen to microorganism chamber. Activated carbon showed high performance due to its high surface area with a maximum power density achieved was 462.74 mW/m2 at Reynolds number of 7030.

scholarly journals Generation of Bio-electricity by Microbial Fuel Cells

2012 ◽  
Vol 1 (3) ◽  
pp. 231 ◽  
Author(s):  
Maksudur R. Khan ◽  
M. R. Karim ◽  
M. S. A. Amin
Keyword(s):  
Microbial Fuel Cells ◽  
Proton Exchange Membrane ◽  
Exchange Resin ◽  
New Technology ◽  
Cation Exchange Resin ◽  
Proton Exchange ◽  
Cod Removal ◽  
Anode Chamber ◽  
Ion Transfer ◽  
Exchange Membrane

Renewable energy is an increasing need in our society. Microbial fuel cell (MFC) technology represents a new technology for the regeneration of electricity from what would otherwise be considered waste and can be a vital candidate for energy in this respect. Electricity directly generated by using bacteria while accomplishing wastewater treatment in MFC processes. The present study deals with performance of proton exchange membrane and cation exchange resin for ion transfer. The effect of dimension of Resin Bridge on electricity generation and COD removal was reported. A maximum voltage of 10.5 mV was observed at 400ppm of KMnO4 along with 400ml of dairy in an anode chamber. Average COD removal was in the range of 70% to 90%.

Conception and optimization of a membrane electrode assembly microbial fuel cell (MEA-MFC) for treatment of domestic wastewater

2011 ◽  
Vol 64 (7) ◽  
pp. 1527-1532 ◽  
Author(s):  
O. Lefebvre ◽  
A. Uzabiaga ◽  
Y. J. Shen ◽  
Z. Tan ◽  
Y. P. Cheng ◽  
...  
Keyword(s):  
Retention Time ◽  
Microbial Fuel Cells ◽  
Hydraulic Retention Time ◽  
Construction Materials ◽  
Domestic Wastewater ◽  
Membrane Electrode Assembly ◽  
Proton Exchange ◽  
Operating Conditions ◽  
Electricity Production ◽  
Membrane Electrode

A membrane electrode assembly (MEA) for microbial fuel cells (MEA-MFC) was developed for continuous electricity production while treating domestic wastewater concurrently. It was optimized via three upgraded versions (noted α, β and γ) in terms of design (current collectors, hydrophilic separator nature) and operating conditions (hydraulic retention time, external resistance, aeration rate, recirculation). An overall rise of power by over 100% from version α to γ shows the importance of factors such as the choice of proper construction materials and prevention of short-circuits. A power of 2.5 mW was generated with a hydraulic retention time of 2.3 h when a Selemion proton exchange membrane was used as a hydrophilic separator in the MEA and 2.8 mW were attained with a reverse osmosis membrane. The MFC also showed a competitive value of internal resistance (≈40–50 Ω) as compared to the literature, especially considering its large volume (3 L). However, the operation of our system in a complete loop where the anolyte was allowed to trickle over the cathode (version γ) resulted in system failure.

scholarly journals The Effect of Bioactivator Variation and Doses of Cow Dung on Quality of Coffee Exocarp Waste

el–Hayah ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 36-54
Author(s):  
Amik Krismawati ◽  
Sugiono Sugiono
Keyword(s):  
Block Design ◽  
Raw Material ◽  
Cow Dung ◽  
Cow Manure ◽  
Randomized Block Design ◽  
Two Factors ◽  
The One ◽  
Time Required ◽  
Number Of Treatment

Coffee exocarp waste produced from the harvest can be used as raw material for compost. The composting can be added with other ingredients to add organic material. Cow manure is the one ingredient that can be added to enrich organic materials. In the composting process, the time required will be longer, but the time can be accelerated by adding a bio activator. The finished compost can be applied at the plant to meet crop nutrient elements. The purpose of this research was to determine the effect of bio activator variation and doses of cow manure on the quality of compost from coffee exocarp waste. This research was conducted at compost house of Assessment Institute for Agricultural Technology (AIAT) and was held on February - April 2017. This research used factorial Randomized Block Design (RBD) with two factors; there is a variation of bio activator and doses of cow manure with three replication. Total number of treatment this research were 12 treatment, there are D1S1 = EM4 + 2 kg cow manure ; D2S1 = Moebillin + 2 kg cow manure; Petrofast + 2 kg cow manure; Decoprima + 2 kg cow manure; D1S2 = EM4 + 4 kg cow manure; D2S2 = Moebillin + 4 kg cow manure; D3S2 = Petrofast + 4 kg cow manure; D4S2 = Decoprima + 4 kg cow manure; D1S3: EM4 + 6 kg cow manure; D2S3 = Moebillin + 6 kg cow manure; D3S3 = Petrofast + 6 kg cow manure; D4S3 = Decoprima + 6 kg cow manure. The data obtained will be processed using Analysis of Variance (ANOVA). If there is a real effect, it will be continued using the BNT test (Least Significant Differences/LSD) with a 5% level. The Results showed the application of bio activator Decoprima (D4) and a dose of 6 kg cow manure (S3) could increase and shows the highest value of pH compost 6,01 (D4) and 6,06 (S3). The dose of 2 kg cow manure (S1) showed the highest compost shrinkage value (34.64%) compared to the 4 kg dose cow manure (S2) (32,22%) and 6 kg (S3) (25,68%). On the other hand, the application of bio activator variation and doses of cow manure did not significantly affect the quality of compost, including N-total (2,15% -2,60%), C-organic (21,40% -24,91%) and C/N ratio (8,81-11,15). The physical properties of the aroma compost show the smell of soil, and the color of the compost is dark brown. 

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