Title :
Anodic-Cathodic Electrochemical Oxidation System for O-Nitrophenol Degradation in Aqueous Solutions
Author :
Li, Yan ; Liu, Huiling ; Liu, Yuan
Author_Institution :
Dept. of Environ. Sci. & Eng., Harbin Inst. of Technol., Harbin
Abstract :
In this paper, the elimination of o-nitrophenol (o-NPh) in aqueous solutions by electrochemical oxidation at titanium-based bismuth-doped lead dioxide (Ti/Bi-PbO2 ) anode and carbon gas diffusion cathode (carbon GDC) was investigated. Four factors of the degradation, i.e. current density I, initial pH, electrolysis temperature T, air input A, were studied. Under the conditions of I = 20 mA/cm2, pH = 4, T = 45degC. A = 60 L/h, 100% o-nitrophenol removal and 94.6% COD removal has been obtained after 120-minute degradation. The degradation process could be described by pseudo-first order kinetics form.
Keywords :
current density; diffusion; electrochemistry; electrolysis; oxidation; pH; wastewater treatment; PbO2:Ti-Bi; anodic electrochemical oxidation; aqueous solutions; carbon gas diffusion cathode; cathodic electrochemical oxidation; current density; electrolysis temperature; o-nitrophenol degradation; pH; titanium-based bismuth-doped lead dioxide; Anodes; Carbon dioxide; Carbon nanotubes; Cathodes; Electrodes; Environmentally friendly manufacturing techniques; Oxidation; Pollution; Temperature; Thermal degradation;
Conference_Titel :
Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1747-6
Electronic_ISBN :
978-1-4244-1748-3
DOI :
10.1109/ICBBE.2008.411
