Detoxification of methyl-parathion pesticide in aqueous solutions by electrochemical oxidation

Electrochemical treatment of drainage water from toxic dump of pesticides and degradation products

“…The dump was located in sand dunes adjacent to the sea. In comparison with the prior investigations of methyl-parathion degradation [16][17][18] in model solutions, the concentrations of the individual substances were low and the complexity of the matrix was high with regards to the presence of naturally occurring salts and impurities. However, the successful conclusions from the prior research [16][17][18] render electrochemical oxidation as being a promising technique in remediation of the subjected water pollution.…”

“…In comparison with the prior investigations of methyl-parathion degradation [16][17][18] in model solutions, the concentrations of the individual substances were low and the complexity of the matrix was high with regards to the presence of naturally occurring salts and impurities. However, the successful conclusions from the prior research [16][17][18] render electrochemical oxidation as being a promising technique in remediation of the subjected water pollution. The aim of the study was to investigate the applicability of the electrochemical oxidation technique for remediation of natural water polluted with organophosphoric pesticides, the influence of salinity and current density on the rate of COD removal, current efficiency, and energy consumption, and to determine the importance of the indirect oxidation by hypochlorite.…”

“…In pure solution with sodium chloride as electrolyte, 80% reduction of both COD and BOD was obtained with a mean energy consumption of 8-18 kWh (kg COD r ) −1 [16]. Furthermore, the investigation showed that methyl-parathion degradation 0013 was far more effective, when the brine solution was in the acidic range.…”

Reduction in energy consumption of electrochemical pesticide degradation through combination with membrane filtration

“…Increasing electrolyte concentration has been found to decrease energy consumption in studies of electrochemical oxidation of pesticides [12][13][14], but there may also exist concentrations above which the energy consumption increases again due to a potentiostatic buffering of the chlorine redox system, which decreases the anode potential [15,16]. Furthermore, the specific ionic rejection by the membrane may also affect the efficiency gain in the subsequent electrochemical oxidation.…”

Electrochemical degradation of chlorpyrifos pesticide in aqueous solutions by anodic oxidation at boron-doped diamond electrodes

“…Several anode materials such as Pt [5][6][7][8][9][10], SnO 2 [11,12], PbO 2 [12][13][14] and BDD [10,12,15,16] have been used for pesticides removal. The new anode material (BDD) possesses technologically important characteristics such as an inert surface with low adsorption properties, remarkable corrosion stability and an extremely wide potential window in aqueous medium [17,18].…”