Experimental Investigation of the Microbial Fuel Cell–Microbial Electrolysis Cell Coupled System for Dairy Wastewater Treatment and Hydrogen Production

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Rezaei Ansari, Mustapha | 2015

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47692 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Yaghmaei, Soheyla; Roosta Azad, Reza
Abstract:
Microbial electrolysis cell- microbial fuel cell (MFC-MEC) coupled system is one of the novel method, for in-situ utilization from the wastewater and generating electricity and hydrogen simultaneously. In this system, required energy for microbial electrolysis cell supply by electric energy generated in microbial fuel cell. Implementation of this system is complicated, because of its unsteady state nature. In this study, it is demonstrated that the hydrogen production in such an MEC-MFC coupled sustem can be manipulated through adjusting the power input on the MEC. The power input of the MEC is regulated by adding MFCs connected into the circuit in series. When one MFC add to the coupled system, the volumetric hydrogen production rate varies in range of 36.4(ml H_2)⁄(litre .Day) to 59.1 (ml H_2)⁄(litre .Day). The COD removal, coulombic efficiency (CE) and hydrogen yield in MEC (Y_(H_2-MEC)) increase with adding one MFC. This results provide an improved method for linking MFCs to MEC for renewable hydrogen gas production
Keywords:
Microbial Electrolysis Cell ; Hydrogen Producing ; Waste Treatment ; Microbial Fuel Cell ; Electricity Production ; Coupled System

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