Comparison of advanced processes on the oxidation of acid orange 7 dye.
The degradation of acid orange 7 dye (AO7) was studied using a 1 L semi-batch tank stirred glass reactor for performing three different photochemical processes (photoperoxidation, Fenton, photo-Fenton). A commercial low pressure lamp was used for irradiation of samples. The advancement of degradation was monitored by measurement of color reduction, UV-spectra, HPLC-UV and COD. The obtained results showed that the photo-Fenton treatment was the most effective for the degradation of AO7.
Departamento de Quimica, Universidade Federal de Santa Maria, 97111-900 Santa Maria, RS, Brazil.
Carla W
CW
Scheeren
José Neri G
JN
Paniz
Ayrton F
AF
Martins
D001391:Azo Compounds / Q000737:chemistry*; D001557:Benzenesulfonates; D002851:Chromatography, High Pressure Liquid; D006861:Hydrogen Peroxide / Q000737:chemistry; D007220:Industrial Waste; D007501:Iron / Q000737:chemistry; D016877:Oxidants / Q000737:chemistry; D010084:Oxidation-Reduction; D010777:Photochemistry; D013783:Textile Industry; D018508:Water Purification / Q000379:methods*
D001391:Azo Compounds; D001557:Benzenesulfonates; C045076:Fenton's reagent; D007220:Industrial Waste; D016877:Oxidants; D006861:Hydrogen Peroxide; D007501:Iron; C014722:2-naphthol orange