1000 resultados para PbO2-Bi
Resumo:
1900/09/15 (A22,N16).
Resumo:
1902/12/01 (A24,N21).
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1885/04/15 (A7,N8).
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1902/11/15 (A24,N20).
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1888/03/15 (A10,N6).
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1890/03/01 (A12,N5).
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1881/10/15 (A3,N20).
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1887/01/01 (A9,N1).
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1880/04/15 (A2,N8).
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1898/04/15 (A20,N8).
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1897/03/15 (A19,N6).
Resumo:
1901/11/01 (A23,N19).
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1897/07/15 (A19,N14).
Resumo:
1885/03/01 (A7,N5).
Resumo:
The Direct Black 22 dye was electrooxidized at 30 mA cm-2 in a flow cell using a BDD or β-PbO2 anode, varying pH (3, 7, 11), temperature (10, 25, 45 °C), and [NaCl] (0 or 1.5 g L-1). In the presence of NaCl, decolorization rates were similar for all conditions investigated, but much higher than predicted through a theoretical model assuming mass-transport control; similar behavior was observed for COD removal (at pH 7, 25 °C), independently of the anode. With no NaCl, COD removals were also higher than predicted with a theoretical model, which suggests the existence of distinct dye degradation pathways.
