Recent developments in the production of proton transfer membranes employed in microbial fuel cells
Nyiko Maurice Chauke, Nomvano Mketo
AI summary
70% confidenceRecent developments in proton transfer membranes for microbial fuel cells focus on improving efficiency and reducing costs, with various types of membranes explored, including ion exchange, composite, porous, and ceramic membranes.
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Abstract
This chapter discusses the utilization of proton transfer membranes (PTMs) in microbial fuel cells (MFCs) for wastewater treatment and hydrogen generation. Conventional wastewater treatment methods often consume significant energy and generate harmful by-products, but integrated MFCs offer a promising alternative. In MFCs, microorganisms facilitate oxidation and reduction reactions, hydrogen generation, and converting the chemical energy in wastewater into direct electric current. This allows wastewater to be used as a valuable resource for bioelectricity, biofuels, hydrogen, and other valuable by-products. The selection of appropriate microorganisms, electrode materials, designs, PTMs, and process parameters significantly influences the performance of MFCs. Optimal pH and temperature conditions are crucial for promoting bacterial growth and overall efficiency. However, an important challenge in MFCs is the effective separation process. Various types of PTMs, including ion exchange, composite, porous, and ceramic membranes, have been explored. Despite advancements, issues such as high membrane costs, insufficient ion or proton separation, molecule diffusion, substrate crossover, and biofouling still pose challenges. Nevertheless, MFCs offer a promising solution for wastewater treatment by combining efficient treatment processes with the generation of valuable resources. To successfully implement and commercialize MFCs, it is crucial to address challenges related to membrane separation and optimize process parameters. Continued research and development efforts in this field have the potential to revolutionize wastewater treatment practices, enhance resource recovery, and contribute to a more sustainable future.
Key findings
- High membrane costs remain a significant challenge in MFCs.
- Insufficient ion or proton separation and molecule diffusion are issues with current PTMs.
- Optimal pH and temperature conditions are crucial for promoting bacterial growth and overall efficiency in MFCs.
Keywords
Identifiers
- Journal
- Resource Recovery from Industrial Wastewater through Microbial Electrochemical Technologies
- Year
- 2024