Electrochemical treatment of landfill leachate using different electrodes
DOI:
https://doi.org/10.33448/rsd-v10i15.22102Keywords:
Dimensionally stable anode; Dimensionally Stable Anode (DSA); Boron doped diamond; leachate treatment; Electrochemical oxidation; Boron doped Diamond; Leachate treatment.; electrochemical oxidationAbstract
This article has as its objective a comparative study of the electrochemical treatment of slurry generated in landfills carried out with Dimensionally Stable Anodes (DSA) (Ti/Ru0.3Ti0.7O2) and Boron Doped Diamond (BDD). From the capacity planning and control (PCC), the central composite rotated design (DCCR) was obtained, whose independent variables in the electrolysis process were current density, time and electrolyte concentration. The removal of Total Organic Carbon (dependent variable) was 15.40% with current density 158 mA cm-², electrolysis time 15 minutes and 0.2 mol L-1 of the NaCl electrolyte using DSA. With the BDD, at the optimum point at 82 mA cm-², 18.5 minutes and 0.19 mol L-1, 77% removal of the organic load and discoloration of approximately 40% Ultraviolet-Visible.
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Copyright (c) 2021 João Paulo Moreira Santos; Luiz Carlos Peppino Neto; Mateus Silveira Freitas; Geoffroy Roger Pointer Malpass; Deusmaque Carneiro Ferreira; Cláudio Márcio de Castro
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