Degradação eletroquímica da vinhaça usando eletrodo de diamante dopado com boro
The degradation of vinasses in aqueous solution from ethanol industry has been investigated by electrochemical oxidation using a boron doped diamond electrode (BDD). Samples of vinasses were electrolyzed in medium of (0.1 mol L-1) Na2SO4 solutions at controlled potentials of +2.4, +3.0 and +4.0 V (v...
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| Other Authors: | , , , |
| Format: | article |
| Language: | por |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000900007 |
| Country: | Brazil |
| Oai: | oai:scielo:S0100-40422011000900007 |
| Summary: | The degradation of vinasses in aqueous solution from ethanol industry has been investigated by electrochemical oxidation using a boron doped diamond electrode (BDD). Samples of vinasses were electrolyzed in medium of (0.1 mol L-1) Na2SO4 solutions at controlled potentials of +2.4, +3.0 and +4.0 V (vs. Ag/AgCl) and exhibited considerable reduction of total organic carbon. The cyclic voltammetry studies indicate that the vinasses are oxidized irreversibly over the BDD at 2.0 V (vs. Ag/AgCl) in diffusion controlled process. From the experimental results it is clear that the BDD electrode can be a valuable tool to the electrochemical degradation of vinasses in practical applications |
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