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

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICBBE.2009.5162763

Filename

5162763