Title :
Cooxidation of Aqueous Phenol under Hydrothermal and Electrochemical Oxidation Situation with Particles of Mn-Sn-Sb/Gamma-Al2O3
Author :
Chen, Wenzhao ; Li, Guangming ; Wang, Hua ; Zhang, Fang ; Wang, Qian
Author_Institution :
State Key Lab. of Pollution Control & Resource Reuse, Tongji Univ., Shanghai
Abstract :
Continual cooxidation of aqueous phenol under catalytic wet oxidation and electrochemical oxidation situation was investigated. Phenol solution was treated under conditions of reaction temperature (120-150degC), oxygen partial pressure (1.0 MPa) and current intensity (0.25-1.0 A) in continuous packed bed reactor with particles of Mn-Sn-Sb/gamma-Al2O3. The results indicated that the presence of the electric field strongly enhanced the efficiency of the catalytic wet oxidation. Phenol conversion reached 94% and TOC reduction was 88.4% for an initial phenol concentration of 2500 mgldrL-1 at relatively mild operating conditions of 130degC of temperature, IMPa of oxygen partial pressure and 0.5 A of current intensity. Meanwhile, the biotoxicity of effluent was three times lower than conventional catalytic wet oxidation at the same condition.
Keywords :
aluminium compounds; antimony alloys; bioreactors; catalysis; effluents; electrochemistry; manganese alloys; organic compounds; oxidation; reduction (chemical); tin alloys; MnSnSb-Al2O3; TOC reduction; aqueous phenol solution; biotoxicity; catalytic wet oxidation; continuous packed bed reactor; current intensity; effluent; electrochemical oxidation; hydrothermal oxidation; pressure 1.0 MPa; temperature 120 degC to 150 degC; total organic carbon; Chemical industry; Effluents; Electrodes; Inductors; Manganese; Microorganisms; Organic compounds; Oxidation; Temperature; Wastewater treatment;
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.2008.1167
