Economically Viable Design of A Single Chambered Microbial Fuel Cell For Gaining Larger Output

Abstract

A novel design of Single Chambered Microbial Fuel Cell in Cloth Electrode Assembly is developed where we have introduced electrical circuitry to generate higher current density. The design is made with the carbon-graphite brushes, copper wire and a plastic box focusing on current output with economic viability of the design utilizing synthetic wastewater. Alteration is done mainly to the cathode surface area which has been constructed using graphite powder without Teflon coating. The highest production recorded is about 25 times (in case of power density) and 7.5 times (in case of current density) higher than that has been recorded using 4 carbon brushes attached to form a single anode in mediator less condition. These results conclude that: 1) Scaling up for production of usable current and power economically, is possible through this way; 2) This can also decrease the huge variation of internal resistance; 3) Power Density increases although energy expense on transferring electrons decreases.