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Aquatic Ecology Research Group (EcoAqua)

Bio-electrosynthesis and electroremediation

Line of research

We are devoted to the study of microorganisms that can convert CO2 into organic compounds with high added value (precursors of synthesis or fuels) with help from electrochemical systems. These systems combine organisms and electricity in a sustainable way as a mechanism for the production of alternative fuels, or to favour the elimination of pollutants in water in a process called electroremediation. We use molecular techniques to investigate the structures of the microbial communities in these systems and we measure their activity.

Graphic outline of the general functioning of a bio-electrochemical system (left) // An image in the electronic microscope of the bacteria joined to the cathode, showing the characteristic appendixes (right)
A graphic outline of the general functioning of a bio-electrochemical system is shown on the left. It is composed of an anode and a cathode that allow the flow of electrons. These originate in the anode and are transported to the cathode where they can be used by the microorganisms for a useful function, in this case the conversion of CO2 into acetate or Methane.
On the right, an image in the electronic microscope of the bacteria joined to the cathode, showing characteristic appendixes.

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