METHOD AND DEVICE FOR REGULATING THE ACTIVITY OF A BIOELECTROCHEMICAL SYSTEM COMPRISING BIOANODE AND BIOCATHODE

摘要

A method of regulating the activity of an electrochemical device (11) comprising a bioanode (3) and a biocathode (6) immersed in an electrolyte (10A, 10C) containing microorganisms, the anode (8) and cathode compartments (9) ) being separated by at least one membrane (14), optionally a reference electrode, a potential difference being applied between the bioanode (3) and the biocathode (6), or between the bioanode and the reference electrode, characterized in that that the operation of the device is governed by a double regulation: -a priority regulation of the potential difference between the bioanode and the biocathode, or between the bioanode and the reference electrode, between a minimum limit value allowing the development of an electroactive biofilm with a bioanode and a maximum limit value less than the oxidation potential of said biofilm, and a secondary regulation, when the first regulation is implemented this, optimizing the faradic yield of the biocathode. Device for carrying out said method