Investigating the Performance of Single Chamber Microbial Fuel Cell (SCMFC) as Sustainable- Innovative Technique for Electricity Generation and Wastewater Treatment

• Published in: Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum Vol. 425; pp. 107 - 117
• Main Authors: Adnan, Muhammed Yarub, Hassoon Ali, Ahmed
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 31.05.2023
• Subjects: Biochemical fuel cells; Chambers; Electric potential; Microorganisms; Performance evaluation; Potassium chloride; Substrates; Voltage; Wastewater treatment; Water treatment; Electricity; KNO3; KCl; NaCl; MFC; Wastewater; Salt Bridges
• ISSN: 1012-0386; 1662-9507; 1662-9507
• DOI: 10.4028/p-iy0o22

Microbial fuel cells (MFCs) are considered as an economical and sustainable technology for various applications. This study has designed four single-chamber SCMFCs that composed of graphite plates as electrodes and used wastewater as a substrate for microorganisms. In order to evaluate the performance of SCMFC, the experiments were executed in a batch mode over 18 days at various types of salt bridge. Four salt bridges are used namely (KCl, NaCl, KNO3, and Cotton Rope). It was found that KCl generated a maximum voltage of 989 mv. The following results were obtained for wastewater investigated parameters: COD = 94%, PO4 = 88.4%, NO3 = 88%, TSS = 80%, and Fe = 76%, respectively at 1 M KCl. The experiment was then carried out using different values of KCl (1, 1.5, 2, 3 M). It was found that at a molar concentration of 1.5, 1422 mv of maximum voltage has been generated. Results for wastewater treatment demonstrated that COD of 81%, PO4 of 78.2%, NO3 of 79%, TSS of 80%, and Fe of 84%.