Fransie StreicherKaamil-Inaam Naicker
Published © LGPL

Automated Microbial Fuel Cell

An Arduino-based chemostat controlling cell growth in a MFC (Microbial Fuel Cell). [Currently this page is a WIP, busy being updated. ]

IntermediateWork in progress929
Automated Microbial Fuel Cell

Things used in this project

Hardware components

Nema 17 Stepper motor 1.8Deg 1.7A 0.5NM
×1
DRV8825(polulu original, or get regular DRV 8825)
×1
100uF capacitor electrolytic radial
×1
INA219 12C Current sensor 3.2A 12 bit
×1
Arduino UNO & Genuino UNO
Arduino UNO & Genuino UNO
×1
Solderless Breadboard Full Size
Solderless Breadboard Full Size
Used for the electronics component of the project.
×1
1-pin MTE Cable (5-pack)
Digilent 1-pin MTE Cable (5-pack)
×3

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)
Used to solder pins to electronic components. This allows for breadboard attachment.
3D Printer (generic)
3D Printer (generic)
Used to manufacture the stepper motor housing, reactor cell and nutrient reservoir.

Story

Read more

Custom parts and enclosures

MFC reactor1

Two compartments for the MFC, O ring slots are engraved on either side(2.5mm thick, so get a 3mm thick, 40mm diameter O ring)

look at end plate files for end plates, which go on the sides that arnt joined together.

End Plate(print 2)

These end plates are attached to the end of each MFC reactor compartment, on the side where the compartments don't touch. We designed the MFC reactor to be assembled using 4M threaded rods, along with wing nuts, washers and o rings being used to fasten it. Our design is a bit to tight for the 4 Rods to fit nicely, so instead use 3m rods and corresponding diameter wing nuts, washers and o rings o fasten.

Peristaltic pump housing

This component is used with a NEMA 17, 1.8DEG step, 1.7A 0.5NM stepper motor, please view the specs of your stepper motor and the one specified in this guide, if they are the same then this can also be used. This is a modified version to fit our stepper motor, the original was made by Great Scott and his guide to making a perstaltic pump can be found here: https://www.instructables.com/id/DIY-Peristaltic-Pump/

Please note: We are still getting the top part of the housing into the right height to allow all internal components to fit well

MFC reactor2

The other half cell

Credits

Fransie Streicher

Fransie Streicher

1 project • 1 follower
Kaamil-Inaam Naicker

Kaamil-Inaam Naicker

1 project • 2 followers
Chemical Engineering Student at the University of Pretoria

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