A comparison of long-term fouling performance by zirconia ceramic filter and cation exchange in microbial fuel cells. (January 2019)

• Record Type: Journal Article
• Authors: Daud, Siti Mariam; Wan Daud, Wan Ramli; Abu Bakar, Mimi Hani; Kim, Byung Hong; Somalu, Mahendra Roa; Jahim, Jamaliah Md; Muchtar, Andanastuti; Ghasemi, Mostafa
• Is Part Of: International biodeterioration & biodegradation. Volume 136(2019)
• Page Start: 63
• Page End: 70
• Publication Date: 2019-01
• Subjects: Non-ion selective separators -- Zirconia ceramic filter -- Bi-directional polarization -- Hysteresis -- Long-term performance -- Biofilm; Biodegradation -- Periodicals; Bioremediation -- Periodicals; Biodegradation -- Periodicals; Biodégradation -- Périodiques; Biorestauration -- Périodiques; Electronic journals; 620.11223
• DOI: 10.1016/j.ibiod.2018.11.001
• Languages: English
• ISSNs: 0964-8305

Abstract

Abstract: The long-term performance of non-ion selective separators, zirconia ceramic filter (ZCF) with a various pore size such as 0.14 μm ZCF1, 150 kDa ZCF2 and 5 kDa ZCF3 were compared to commercial cation exchange membrane (CEM), Nafion 117 in microbial fuel cells. The ZCF3 generated the highest performance of 2800 ± 14.5 mWm −2 (5.9 Am −2 ) compared to CEM: 1800 ± 17.8 mWm −2, 4.0 Am −2 . Meanwhile, the CEM exhibited maximum power decline during the reverse sweep (61.7%) when analyzed using the bi-directional polarization method. The non-ion selective membranes displayed reduced in maximum power decline during the reverse sweep (ZCF1 50%, ZCF2 40% and ZCF3 42.8%). In addition, the ZCF3 showed the highest proton conductivity and water uptake, 0.863 × 10 −1 Scm −1 and 93.7% respectively, followed by ZCF2 (0.729 × 10 −1 Scm −1, 80.98%), ZCF1 (0.624 × 10 −1 Scm −1, 73.99%) and Nafion 117 (0.367 × 10 −2 Scm −1, 57.07%). The ZCF3 appeared as an efficient material for electrochemical active bacteria, maintaining the high power of 1600 mWm −2, compared to CEM: 600 mWm −2 after eight months' operation under batch mode. The long-term operation of MFCs was affected by the reduction of power output, caused by the increase in the thickness of the biofilm. Graphical abstract: Highlights: The proton exchange membrane exhibited maximum power drops during forward sweep. The non-ion selective membranes reduced in maximum power decline. The ZCF3 appears efficient material for electroactive bacteria. Porosity of ceramic materials available even after biofilm formation.