scholarly journals Penentuan Rasio Bahan Sampah Organik Optimum Terhadap Kinerja Compost Solid Phase Microbial Fuel Cells (CSMFCs)

2019 ◽  
Vol 16 (1) ◽  
pp. 24 ◽  
Author(s):  
Meishinta Ariyanti ◽  
Ganjar Samudro ◽  
Dwi Siwi Handayani
Keyword(s):  
Energy Efficiency ◽  
Fuel Cells ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Solid Phase ◽  
Coulombic Efficiency ◽  
Single Chamber

Compost Solid Phase Microbial Fuel Cells (CSMFCs) merupakan teknologi pengomposan yang diintegrasikan dengan sistem MFCs untuk menghasilkan kompos dan produksi biolistrik dari sampah padat organik. Penelitian ini bertujuan untuk meningkatkan kinerja CSMFCs melalui penerapan perlakuan optimal dari penelitian terdahulu seperti, kadar air 60%, volume sampah 2/3 reaktor, dan penambahan bioaktivator. CSMFCs dalam penelitian ini dilakukan dalam kondisi batch menggunakan reaktor tipe single chamber dan dual anode graphene. Sampah daun dan sampah sisa makanan digunakan sebagai substrat dalam studi ini. Bahan sampah tersebut divariasikan berdasarkan rasio bahan (sampah daun:sampah sisa makanan) yaitu 100:0, 0:100, dan 50:50. Hasil penelitian ini menunjukan kinerja CSMFCs yang optimum terdapat pada variasi sampah campuran keduanya dengan rasio bahan 50:50. Variasi ini dapat menghasilkan kompos yang baik, yaitu memenuhi SNI 19-7030-2004, serta produksi listrik yang cukup tinggi yaitu power density 41,6 mW/m2, coulombic efficiency 0,647% dan energy efficiency 0,0127%.

scholarly journals PENENTUAN VARIASI RASIO C/N OPTIMUM SAMPAH CAMPURAN (DEDAUNAN DAN SISA MAKANAN) TERHADAP KINERJA COMPOST SOLID PHASE MICROBIAL FUEL CELLS (CSMFC)

2018 ◽  
Vol 15 (2) ◽  
pp. 100
Author(s):  
Erika Lucitawati ◽  
Arya Rezagama ◽  
Ganjar Samudro
Keyword(s):  
Fuel Cells ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Solid Phase ◽  
Coulombic Efficiency ◽  
Total Power ◽  
Total P

Rasio C/N merupakan salah satu faktor penting pada proses pengomposan dan produksi listrik dalam compost solid phase microbial fuel cells (CSMFC). Rasio C/N menggambarkan nutrisi yang tersedia bagi mikroorganisme dalam CSMFC. Besarnya nilai rasio C/N yang terdapat dalam substrat yang digunakan mempengaruhi kinerja CSMFC. Penelitian ini bertujuan untuk menentukan nilai rasio C/N yang optimum terhadap kinerja CSMFC. Variasi nilai rasio C/N yang digunakan yaitu 30:1, 40:1 dan 50:1. Kadar air diatur pada 60 %. Penelitian dilakukan secara batch selama 23 hari. Parameter yang diujikan berupa suhu, pH, kadar C Organik, N total, P total, K total, rasio C/N, power density, dan Coulombic efficiency. Hasil penelitian menunjukkan bahwa kinerja CSMFC yang optimum terdapat dalam reaktor dengan rasio C/N 30:1 dengan nilai suhu, pH, kadar C Organik, N total, P total, K total, power density, dan Coulombic efficiency secara berturut-turut sebesar 7,1, 27,5 OC, 20,31%, 1,63%, 0,19%, 0,21%, 12,47, 48,02 mW/m2 dan 0,19%.

scholarly journals Bioenergy Potential of Albumin, Acetic Acid, Sucrose, and Blood in Microbial Fuel Cells Treating Synthetic Wastewater

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1289
Author(s):  
Madiha Tariq ◽  
Jin Wang ◽  
Zulfiqar Ahmad Bhatti ◽  
Muhammad Bilal ◽  
Adeel Jalal Malik ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Fuel Cells ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Industrial Wastewater ◽  
Coulombic Efficiency ◽  
Synthetic Wastewater ◽  
Anode Chamber ◽  
Batch Mode ◽  
Voltage Generation

Microbial fuel cells (MFCs) are a recent biotechnology that can simultaneously produce electricity and treat wastewater. As the nature of industrial wastewater is very complex, and it may contain a variety of substrates—such as carbohydrates, proteins, lipids, etc.—previous investigations dealt with treatment of individual pollutants in MFCs; the potential of acetic acid, sucrose, albumin, blood, and their mixture has rarely been reported. Hence, the current investigation explored the contribution of each substrate, both separately and in mixture. The voltage generation potential, current, and power density of five different substrates—namely, acetic acid, sucrose, albumin, blood, and a mixture of all of the substrates—was tested in a dual-chambered, anaerobic MFC operated at 35 °C. The reaction time of the anaerobic batch mode MFC was 24 h, and each substrate was treated for 7 runs under the same conditions. The dual-chambered MFC consisted of anode and cathode chambers; the anode chamber contained the biocatalyst (sludge), while the cathode chamber contained the oxidizing material (KMnO4). The maximum voltage of 769 mV was generated by acetic acid, while its corresponding values of current and power density were 7.69 mA and 347.85 mW, respectively. Similarly, being a simple and readily oxidizable substrate, acetic acid exhibited the highest COD removal efficiency (85%) and highest Coulombic efficiency (72%) per run. The anode accepted the highest number of electrons (0.078 mmol/L) when acetic acid was used as a substrate. The voltage, current, and power density generated were found to be directly proportional to COD concentration. The least voltage (61 mV), current (0.61 mA), and power density (2.18 mW) were observed when blood was treated in the MFC. Further research should be focused on testing the interaction of two or more substrates simultaneously in the MFC.

scholarly journals Direct Bioelectricity Generation from Sago Hampas by Clostridium beijerinckii SR1 Using Microbial Fuel Cell

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2397 ◽  
Author(s):  
Mohd Azwan Jenol ◽  
Mohamad Faizal Ibrahim ◽  
Ezyana Kamal Bahrin ◽  
Seung Wook Kim ◽  
Suraini Abd-Aziz
Keyword(s):  
Fuel Cells ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Starch Content ◽  
Coulombic Efficiency ◽  
Clostridium Beijerinckii ◽  
Maximum Power ◽  
Maximum Power Density ◽  
Bioelectricity Generation ◽  
Wide Range

Microbial fuel cells offer a technology for simultaneous biomass degradation and biological electricity generation. Microbial fuel cells have the ability to utilize a wide range of biomass including carbohydrates, such as starch. Sago hampas is a starchy biomass that has 58% starch content. With this significant amount of starch content in the sago hampas, it has a high potential to be utilized as a carbon source for the bioelectricity generation using microbial fuel cells by Clostridium beijerinckii SR1. The maximum power density obtained from 20 g/L of sago hampas was 73.8 mW/cm2 with stable cell voltage output of 211.7 mV. The total substrate consumed was 95.1% with the respect of 10.7% coulombic efficiency. The results obtained were almost comparable to the sago hampas hydrolysate with the maximum power density 56.5 mW/cm2. These results demonstrate the feasibility of solid biomass to be utilized for the power generation in fuel cells as well as high substrate degradation efficiency. Thus, this approach provides a promising way to exploit sago hampas for bioenergy generation.

scholarly journals Enhanced Power Extraction with Sediment Microbial Fuel Cells by Anode Alternation

Fuels ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 168-178
Author(s):  
Marzia Quaglio ◽  
Daniyal Ahmed ◽  
Giulia Massaglia ◽  
Adriano Sacco ◽  
Valentina Margaria ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Energy Harvesting ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Average Power ◽  
Power Extraction ◽  
Harvesting Technique ◽  
Harvesting Method ◽  
Energy Harvesting Devices ◽  
Efficient Power

Sediment microbial fuel cells (SMFCs) are energy harvesting devices where the anode is buried inside marine sediment, while the cathode stays in an aerobic environment on the surface of the water. To apply this SCMFC as a power source, it is crucial to have an efficient power management system, leading to development of an effective energy harvesting technique suitable for such biological devices. In this work, we demonstrate an effective method to improve power extraction with SMFCs based on anodes alternation. We have altered the setup of a traditional SMFC to include two anodes working with the same cathode. This setup is compared with a traditional setup (control) and a setup that undergoes intermittent energy harvesting, establishing the improvement of energy collection using the anodes alternation technique. Control SMFC produced an average power density of 6.3 mW/m2 and SMFC operating intermittently produced 8.1 mW/m2. On the other hand, SMFC operating using the anodes alternation technique produced an average power density of 23.5 mW/m2. These results indicate the utility of the proposed anodes alternation method over both the control and intermittent energy harvesting techniques. The Anode Alternation can also be viewed as an advancement of the intermittent energy harvesting method.

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