SYSTEM AND METHOD TO CONTROL H2O2 LEVEL IN ADVANCED OXIDATION PROCESSES

摘要

The present invention relates to a bio-electrochemical system (BES) and a method of in-situ production and removal of H₂O₂ using such a bio-electrochemical system (BES). Further, the invention relates to a method for in-situ control of H ₂O₂ content in an aqueous system of advanced oxidation processes (AOPs) involving in-situ generation of hydroxyl radical (OH) by using such a bio-electrochemical system (BES) and to a method for treatment of wastewater and water disinfection. The bio-electrochemical system (BES) according to the invention comprises:—an aqueous cathode compartment comprising a first cathode and a second cathode,—an aqueous anode compartment comprising an anode at least partly covered in biofilm, wherein the first cathode is connected to a first circuit and the second cathode is connected to a second circuit, wherein the first and the second circuit are connected to the system by an external switch.