Record number :
Title of article :
Catalytic wet air oxidation of textile industrial wastewater using metal supported on carbon nanofibers
Author/Authors :
Rodrيguez، نويسنده , , A. and Ovejero، نويسنده , , G. E. Romero، نويسنده , , M.D. and Dيaz، نويسنده , , C. Gonzalez-Barreiro، نويسنده , , M. and Garcيa، نويسنده , , J.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
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Abstract :
The catalytic performance of 3 wt.% copper supported on carbon nanofibers (CNFs) in liquid phase oxidation has been tested using a batch stirred tank microreactor in order to determine the decolorization and total organic carbon (TOC) removal efficiency in washing textile wastewater (WTW). A preliminary study was carried out in a temperature range of 120–160 °C and two oxygen partial pressure of 6.3 and 8.7 bar. TOC removal and toxicity reduction were as high as 74.1% and 43%, respectively at 140 °C and 8.7 bar, after 180 min reaction. The main intermediates detected in raw wastewater were decanoic acid, methyl ester and 1,2-benzenedicarboxylic acid, and have been degraded by means of Cu/CNF catalyst. Application of CWAO to the treatment of a textile effluent at 160 °C and 8.7 bar of oxygen partial pressure showed that the use of a Cu/CNF catalyst significantly improves the TOC and color removal efficiencies and it can be considered as an option for a pretreatment step in the treatment of these industrial effluents.
Keywords :
Carbon nanofibers , Washing textile wastewater , Catalyst , Pressure , Catalytic wet air oxidation
Journal title :
Journal of Supercritical Fluids
Link To Document :