The Catalytic Degradation of Oilfield Wastewater with Ce Modified TiO2/SnO2 Electrode

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Subscript textIn this text, Ti/TiO2-SnO2 composite electrodes were prepared by Sol-Gel method. Rare earth-doped method can improve the catalytic performance of the composite electrodes. Based on the degradation of oil-field wastewater, e of the electrode surface and the element composition of surface layers were analyzed by SEM, EDX and XRD. When the current density was 30mA/cm2, electrode submersed area was 2cm2, pH was 3~5, temperature was 30°C and the electrolysis time was 60min, the best treatment process was obtained. The average removal rate of oil content and CODcr were 92.8% and 89.2%, respectively. Under the best treatment process the contaminant was degradated to other intermediate substances during degradation, finally mineralized to CO2 and H2O.

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Periodical:

Advanced Materials Research (Volumes 518-523)

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3082-3088

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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