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open-access-imgOpen AccessElectrochemical treatment of landfill leachate using different electrodes
João A. C. Santos,
Luiz Menini Neto,
Mateus Silveira Freitas,
Geoffroy Roger Pointer Malpass,
Deusmaque Carneiro Ferreira,
Cláudio Galvão de Castro Junior
Publication year2021
Publication title
research, society and development
Resource typeJournals
PublisherGrupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
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.
Subject(s)anode , bulk electrolysis , carbon fibers , chemistry , composite material , composite number , current density , diamond , electrochemistry , electrode , electrolysis , electrolyte , environmental chemistry , leachate , materials science , metallurgy , physics , quantum mechanics , slurry , supporting electrolyte , total organic carbon

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