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Theoretical and Experimental Investigations of Bioelectrochemical Processes in Microfluidic Systems

Mardanpour, Mohammad Mahdi | 2017

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  1. Type of Document: Ph.D. Dissertation
  2. Language: Farsi
  3. Document No: 49968 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Yaghmaei, Soheila
  7. Abstract:
  8. The first attempt of this study was theoretical and experimental investigations of bioelectrochemical processes in microfluidic systems. Besides, novel applications of this technology as a powerful platform for maximum usage of bioenergy were introduced. The feasibility of a microfluidic microbial fuel cell (MFC) as an efficient power generator for production of bioelectricity for implantable medical devices (IMDs) and fabrication of microfluidic microbial electrolysis cell (MEC) for hydrogen medicine were investigated. For the glucose-fed microfluidic MFC, the maximum power density of 5.2 µW cm-2 obtained in this study is 13 fold greater than the power density reported previously for microsized MFCs and 18% more than power density for glucose fuel cells. The maximum biohydrogen production rate of 0.94 µl hydrogen (µl urea)-1 day-1 from urea indicate the acceptable performance of microfluidic MEC for using human excreta and realizing the applicability of this technology in medical fields. In view point of theoretical investigations, in addition to considering the diversification and multi-populations in biodegradation of complex substrates with different electron transfer mechanisms, the dynamic behavior of biocatalyst for biofilm formation was investigated. By consideration of bacterial chemotaxis in biocatalyst growth and particular situation of microfluidic system, the better understanding of bioelectrochemical processes was achieved
  9. Keywords:
  10. Microfluidic System ; Microbial Fuel Cell ; Microbial Electrolysis Cell ; Modeling ; Bioelectrochemical Systems

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