Journal
BIOMASS & BIOENERGY
Volume 148, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2021.106028
Keywords
Bioelectricity; Plant microbial fuel cell; Rhizodeposits
Funding
- PAICYT (Programa de Apoyo a la Investigacion Cientifica y Tecnologica) from Universidad Autonoma de Nuevo Leon [CT1103-20]
- Mexican Council for Science and Technology
- Mexican Ministry of Education
- Consejo Nacional de Ciencia y Tecnologia (CONACYT)
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Bioelectrochemical systems such as microbial fuel cells and plant microbial fuel cells are renewable energy sources used for various applications. Plant microbial fuel cells can generate electricity continuously as the plant grows without harming the plant, but face challenges in commercialization and energy efficiency when compared to other systems.
Bioelectrochemical systems (BES) such as microbial fuel cells (MFCs) and plant microbial fuel cells (P-MFCs) are renewable energy sources, which have been developed for various applications. These include, biosensors, biofuel production, wastewater treatment, surface water remediation and contaminated sediments. Unlike conventional MFCs, P-MFCs can generate electricity continuously while the plant grows and can be used in any field use for crop production without harming the plants. However, the application of these systems on a largescale has presented great challenges to date. This is firstly due to commercialization; secondly, low energy efficiency when compared to other systems. This has been based on, several configurations of P-MFC embedded with C-3, C-4 and CAM plants, bryophytes, macrophyte and algae which have previously been reported. However, there can be no doubt that these technologies have other advantages, which are largely based on the selfsustaining nature of bacteria transfer or accepted electrons. Recent signs of progress in the configurations, different electrode materials used, the requirements of bioelectricity generation for the improvement of P-MFCs, as well as their possible application in real-time and associated challenges are shown here. P-MFC technologies will no doubt receive more attention when they are scaled up and properly configured to be applied in real-time in order to reduce energy shortages.
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