Microbial Fuel Cells as Source of Clean Energy - Potential and Pitfalls
2019
Tabassum-Abbasi, Tasneem Abbasi and S. A. Abbasi
Microbial fuel cell (MFC) is one among several other technologies which are being vigorously explored on the assumption that they can achieve pollution control with concomitant generation of ‘clean’ energy. In this study, the techno-economical problems associated with MFCs have been identified and catalogued in the context of the fuel cell technology in general and MFCs in particular. It is shown that even as the attention of the supporters of MFCs is riveted on the ability of MFCs to generate electricity directly from organic waste, the high costs and the pollution that the making, operation, decommissioning, and disposal of MFCs entails, is not taken into account. Once this is done, MFCs prove not only prohibitively costly but environmentally incompatible as well. In this respect MFCs are one among numerous other waste-to-wealth technologies whose promise was never fulfilled because the energy they generated might have been clean but the process of that generation was very unclean as well as expensive. The study underscores the harm caused by the expectations associated with MFCs and other similar, perpetually ‘likely to succeed’, technologies because in the vain hope that such options will one day enable ‘clean’ treatment of waste we keep generating ever larger quantities of waste instead of focusing on what is viable: waste reduction and conservation of resources.
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