I have just started my first MFC. I know that there is a starting stage during which the biofilm of the bacteria is formed on the electrodes.
How do I know that the start up period is finished, after which I can change the medium with a fresh one?
What is the maximum voltage I could get during the start up period? What is the indication of the measured voltage?
I think you should prepare some preliminary experiments to reveal the properties of your MFC system. From that voltage performance you can decide when is the maximum or a stable phase.
Thanks Dr.Attila Szöllősi for your answer. but What are these experiments and how can I make them?
I recommand to start your MFC in batch fermentation with and external resistance and measure the voltage, When the voltege decreased significantly you can change the medium.
I have already started my first MFC in batch mode but without external resistance.
The voltage is now increasing and reaches more than 0.2 v. Is it true that maximum voltage should be about 0.05 v?
and how much time I have to change the medium during the experiment?
the voltage could be vary in a wide range, so there is no exact end voltage. When your voltage value decrese you can change the medium.
Every MFC has it own system, so the curve (exponential-peak-stable) its very vary depend on the MFC. Like the substrate, the inoculation, the cathode, anode and others.
it can reach 0,7 V, so i agree with Mr Szöllősi, you can make preliminary experiments for your system.
BFC and MFC Review is attached Probably it will be interesting?
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