Title :
Electrochemical Removal of Nitrate Ion on Brass Cathode and DSA Anode
Author :
Guo, Xu ; Feng, Chuanping ; Li, Miao ; Hou, Lizhu
Author_Institution :
Sch. of Water Resources & Environ., China Univ. of Geosci., Beijing, China
Abstract :
Electrochemical denitrifacation was studied for simultaneous reduction of nitrate and oxidation of by-products (ammonia and nitrite) on brass(Cu62Zn38) cathode and DSA(Ti/IrO2-Pt) anode. In the presence of 0.50 g/L NaCl and 0.5g/L Na2SO4 as supporting electrolyte, the NO3 --N decreased from 50.0 to 9.8 mg/L after 240 min electrolysis; no ammonia and nitrite were detected in the treated solution. The reduction capability of the brass cathode has been investigated in the range of potentials between 0.0 and -2.0 V vs. SCE with the Cycling Volt-ampere Methode(CVM). The brass cathode exhibited a high electrocatalytic activity for the reduction of NO3 -.
Keywords :
catalysis; electrochemical electrodes; electrolysis; nitrogen compounds; oxidation; water treatment; Cycling Volt-ampere Methode; DSA anode; NO3 -; brass cathode; denitrifacation; electrocatalytic activity; electrochemical nitrate ion removal; electrolysis; oxidation; Anodes; Cathodes; Electrochemical processes; Electrodes; Geology; Hydrogen; Pediatrics; Wastewater; Water pollution; Water resources;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5162763
