Improved Power Performance of Activated Carbon Anode by Fe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; Addition in Microbial Fuel Cells

Peng, Xin; Chu, Xiaoyu; Huang, Peng; Ke, Shan

doi:10.4028/www.scientific.net/amm.700.170

Cited by 5 publications

(3 citation statements)

References 14 publications

(15 reference statements)

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“…Hal ini menunjukkan bahwa selain terdapat bakteri exoelectrogen di setiap substrat, elektroda di dalam reaktor juga mampu menghantar listrik. Elektroda yang digunakan dalam penelitian ini merupakan kombinasi antara dua bahan yang telah diketahui memiliki kemampuan untuk menghantarkan elektron, yaitu stainless steel mesh dan karbon aktif (Dumas et al, 2007;Guerrini et al, 2014;Masoudi et al, 2020;Nam et al, 2018;Peng et al, 2015;Sudirjo et al, 2019;Yamashita et al, 2016;Zhao et al, 2008).…”

Section: Hasil Dan Pembahasanunclassified

Eksplorasi Substrat Single-Chamber Air-Cathode Microbial Fuel Cell Dengan Elektroda Stainless Steel Dan Karbon Aktif

2022

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Pengembangan energi substitusi terbarukan dan ramah lingkungan harus dilakukan untuk menggantikan peran energi fosil. Salah satu teknologi untuk menghasilkan energi ini adalah microbial fuel cells (MFCs). Teknologi ini memanfaatkan mikroorganisme untuk menghasilkan listrik secara langsung melalui perombakan molekul organik dalam proses respirasi seluler. Penelitian ini merupakan penelitian awal yang bertujuan untuk mengeksplorasi substrat dan mikroorganisme yang berpotensi untuk digunakan dalam teknologi MFCs. Tipe reaktor MFCs yang digunakan adalah membraneless, single chamber air-cathode. Substrat yang diinokulasi ke dalam reaktor diambil dari tiga sumber yang berbeda, yaitu endapan lumpur bakau, tanah berlumpur dari kebun dan endapan saluran pembuangan rumah tangga. Material elektroda yang digunakan adalah kombinasi stainless steel mesh dan karbon aktif. MFCs dioperasikan selama 3 siklus (1 siklus = 7 hari), dan di akhir siklus, reaktor MFCs dibersihkan dan diganti dengan substrat yang baru. Hasil pengoperasian MFCs selama 3 siklus menunjukkan bahwa substrat dari endapan lumpur bakau menghasilkan tegangan listrik sebesar 101,54 mV. Sedangkan, substrat tanah berlumpur dan endapan saluran pembuangan rumah tangga menghasikan tegangan sebesar 15,8 mV dan 13,06 mV. Dengan penelitian yang lebih mendalam, substrat endapan lumpur bakau berpotensi untuk digunakan dalam teknologi MFCs. Penelitian ini diharapkan dapat memperkenalkan teknologi MFCs kepada masyarakat, agar dapat dikembangkan untuk mengelola limbah dan menghasilkan energi terbarukan.

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Section: Hasil Dan Pembahasanunclassified

Eksplorasi Substrat Single-Chamber Air-Cathode Microbial Fuel Cell Dengan Elektroda Stainless Steel Dan Karbon Aktif

2022

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“…These include carbon cloth, carbon paper, or sheet or graphite plates and graphite rod. Using carbon-based anode materials has the advantages of cost-effectiveness, biocompatible nature, efficient electrical conductivity, and chemical stability [73]. Due to their potentially high-performance enhancement and excellent properties, these have been recognized as being very useful for building MFCs.…”

Section: Modern Carbon-based Anodesmentioning

confidence: 99%

Treatment of Dairy Wastewaters: Evaluating Microbial Fuel Cell Tools and Mechanism

Dongre¹,

Sogani²,

Sonu³

et al. 2021

Environmental Issues and Sustainable Development

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Pollution caused by chemical and dairy effluent is a major concern worldwide. Dairy wastewaters are the most challenging to treat because of the presence of various pollutants in them. The characteristics of effluent like temperature, color, pH, Dissolved Oxygen, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), dissolved solids, suspended solids, chloride, sulfate, oil, and grease depend solely on the volume of milk processed and the form of finished produce. It is difficult to select an efficient wastewater treatment method for the dairy wastewaters because of their selective nature in terms of pH, flow rate, volume, and suspended solids. Thus there exists a clear need for a technology or a combination of technologies that would efficiently treat the dairy wastewaters. This chapter explains the energy-generating microbial fuel cell or MFC technologies for dairy wastewaters treatment having different designs of MFCs, mechanism of action, different electrode materials, their surface modification, operational parameters, applications and outcomes delivered through the technology in reducing the COD, BOD, suspended solids and other residues present in the wastewaters. The chapter also elaborates on the availability of various natural low-cost anode materials which can be derived from agricultural wastes. The current chapter elaborates on MFC technology and its tools used for dairy wastewater treatment, providing useful insight for integrating it with existing conventional wastewater treatment methods to achieve the degradation of various dairy pollutants including emerging micropollutants.

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“…Tafel's electrochemical extrapolation technique showed that MFC anode oxidation activation was stronger when Fe 2 O 3 was added. The authors attribute the increase in kinetic activity to the facilitated extracellular electron transfer from the cell to the bacteria, showing that the rate of anode electron transfer can be increased by the addition of Fe 2 O 3 [12]. Sayed et al [13] found that a carbon cloth (CC) anode covered with Fe nanostructures had a lower potential than an unmodified anode (−0.01 and 0.16 V vs. Ag/AgCl, respectively).…”

Section: Introductionmentioning

confidence: 99%

Anode Modification with Fe2O3 Affects the Anode Microbiome and Improves Energy Generation in Microbial Fuel Cells Powered by Wastewater

Nosek

Mikołajczyk

Cydzik‐Kwiatkowska

2023

IJERPH

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This study investigated how anode electrode modification with iron affects the microbiome and electricity generation of microbial fuel cells (MFCs) fed with municipal wastewater. Doses of 0.0 (control), 0.05, 0.1, 0.2, and 0.4 g Fe2O3 per the total anode electrode area were tested. Fe2O3 doses from 0.05 to 0.2 g improved electricity generation; with a dose of 0.10 g Fe2O3, the cell power was highest (1.39 mW/m2), and the internal resistance was lowest (184.9 Ω). Although acetate was the main source of organics in the municipal wastewater, propionic and valeric acids predominated in the outflows from all MFCs. In addition, Fe-modification stimulated the growth of the extracellular polymer producers Zoogloea sp. and Acidovorax sp., which favored biofilm formation. Electrogenic Geobacter sp. had the highest percent abundance in the anode of the control MFC, which generated the least electricity. However, with 0.05 and 0.10 g Fe2O3 doses, Pseudomonas sp., Oscillochloris sp., and Rhizobium sp. predominated in the anode microbiomes, and with 0.2 and 0.4 g doses, the electrogens Dechloromonas sp. and Desulfobacter sp. predominated. This is the first study to holistically examine how different amounts of Fe on the anode affect electricity generation, the microbiome, and metabolic products in the outflow of MFCs fed with synthetic municipal wastewater.

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Improved Power Performance of Activated Carbon Anode by Fe<sub>2</sub>O<sub>3</sub> Addition in Microbial Fuel Cells

Cited by 5 publications

References 14 publications

Eksplorasi Substrat Single-Chamber Air-Cathode Microbial Fuel Cell Dengan Elektroda Stainless Steel Dan Karbon Aktif

Eksplorasi Substrat Single-Chamber Air-Cathode Microbial Fuel Cell Dengan Elektroda Stainless Steel Dan Karbon Aktif

Treatment of Dairy Wastewaters: Evaluating Microbial Fuel Cell Tools and Mechanism

Anode Modification with Fe2O3 Affects the Anode Microbiome and Improves Energy Generation in Microbial Fuel Cells Powered by Wastewater

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