Device and method for selective oxidation of macromolecular organic pollutants using free radicals produced in heterogeneous fenton reaction

A method for selective oxidation of macromolecular organic pollutants using free radicals produced in a heterogeneous Fenton reaction, the method comprising:

• 1) assembling a device, the device comprising a heterogeneous Fenton reaction unit and an electrochemical cell;
• the heterogeneous Fenton reaction unit comprising a reactor and an anion exchange membrane disposed in the reactor to separate the reactor into a first chamber and a second chamber;
• filling the first chamber with a catalyst;
• and filling the second chamber with a dielectric material;
• 2) providing wastewater containing hydrogen peroxide and hydroxylamine hydrochloride;
• and measuring an original pH of the wastewater;
• and
• 3) introducing the wastewater into the first chamber;
• connecting a power supply to the heterogeneous Fenton reaction unit;
• turning on the power supply, an electric field with an initial voltage is formed in the reactor, and organic acids generated by a heterogeneous Fenton solution in the reactor move from the first chamber into the second chamber.