Hello, I'm currently doing experiments on microbial fuel cell. I am using two interconnected chambers (anodic and cathodic) for my mfc, separated by a Nafion-117 membrane.
As the catholyte, i used potassium permanganate 30mM (pH 7) in the cathodic chamber. I added nothing except the microbe culture and organic substrate (as the microbe's food) to the anodic chamber. The anodic solution was clear at the start, until i noticed something brown passed through the membrane into my clear anodic solution.
What could the "brown matter" possibly be? Is there anything i could do to prevent it from happening as i am worried that it might affect the microbes and the organic matters i am currently studying about in the anodic chamber.
Thank you in advance. I highly appreciate every response to my question.
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