Patent ID: 8425755

Claim:
A process to reduce COD, TOC, and total solids in vinasse from ethanol distilleries, comprising the stages of: a) Feed with a contaminated medium from ethanol distilleries a electrolytic cell outfitted with treatment chamber, an input, an output, one or more electric energy conducting media, a power source, a rheostat device, a collection system of the supernatant, and an agitation system; b) Adjust the pH of the contaminated liquid medium at a value between 7 and 14; c) Maintain said contaminated liquid medium at room temperature; d) Apply a constant current through said electrodes at a density between 20 and 40 mA/cm 2 to said contaminated liquid medium; e) Inject a solution of liquid hydrogen peroxide to said contaminated liquid medium via continuous or sequential injection in a plurality sites next to said electrodes in a concentration between 10 and 67,000 ppm of H 2 O 2 per liter of contaminated liquid medium; f) Remove the treated effluent from said electrolytic cell; g) Conduct a post-treatment stage to the effluent, in which said purified effluent is separated from the flocculated and insoluble particles through gravity, filtration, or centrifuge.