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The corrosion layers electrochemically formed on the lead–silver/ normalH2SO4+Mn(II) interface were studied through open-circuit potential monitoring, cyclic voltammetry, and chronoamperometry and were characterized by cyclic voltammetry, X-ray diffraction, and scanning electron microscope coupled to an energy dispersive spectrometer to analyze microregions. Mn(II) oxidation reactions take place in the range of 1

This work shows results obtained in the electrochemical incineration of a synthetic vinasse with initial chemical oxygen demand (COD) of 75.096 g L(-1) in aqueous media (which resembles vinasse industrial wastewater). Electrolyses in a filter-press-type FM01-LC electrochemical reactor equipped with a three-dimensional (3D) boron doped diamond electrode (BDD) were performed at Reynolds values between 22

This paper deals with the use of reticulated vitreous carbon (RVC) and graphite felt (GF) as porous electrode for the removal of 20 ppm Cu(II) in 0.5 mol dm -3 Na 2 SO 4 at pH 2 (which resembles a rinsing wastewater generated by a plating industry). The experimental mass transport characterization (k m a = bu c ) showed that for 100 ppi (RVC), the value of the coefficient b, associated with magnitude of porous electrode, is 0.88, while for (GF) is 3.38. On the other hand, c value for 100 ppi (RVC) is 0.06, while for (GF) is 0.62, indicating that the flow pattern is a complex function of the shape of the electrode. The experimental potential drop for 100 ppi (RVC) and (GF) (1.2 cm thick), indicated the absence of hydrogen evolution. Current efficiencies for RVC and GF were function of convection, giving values comprised between 45 ≤ φ ≤ 68% and 51 ≤ φ ≤ 73%, respectively, and energy consumption values of 0.3 < E cons < 1.7 and 0.4 < E c < 1.1 kWh m -3 , respectively. Theoretical number of identical cells in the stack (N) necessary to the cupric depletion from 20 to 1 ppm, for 100 ppi (RVC) and (GF) were calculated.