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Studies on Degradation of Diquat Pesticide in Aqueous Solutions Using Electrochemical Method

Author(s): Nasser Abu Ghalwa | Hazem M. Abu-Shawish | Mazen Hamada | Khaled Hartani | Abed Al Hakem Basheer

Journal: American Journal of Analytical Chemistry
ISSN 2156-8251

Volume: 03;
Issue: 02;
Start page: 99;
Date: 2012;
Original page

Keywords: Carbon Paste Electrode | Herbicide | C/PbO&lt | sub&gt | 2&lt | /sub&gt | Electrode | Electrooxidation | Diquat Dibromide

The C/PbO2 electrode assisted electrochemical removal of diquat dibromide herbicides solutions has been the subject of the present investigation under several operating conditions. The optimum conditions of the treatment process are: current density of 150 mA/cm2, pH 2.2, NaCl concentration 2 g/L, temperature of 10?C and initial diquat concentration of 50 mg/L. The time of electrolysis is 60 min for degradation rate of diquat and chemical oxygen demand (COD) removal is 210 min. The results were obtained by UV-Vis spectrophotometer and the present designed electrode was coincident.

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