A Brief Review on Environmental Application of Boron Doped Diamond Electrodes as a New Way for Electrochemical Incineration of Synthetic Dyes

Figure 8

Variations of COD (a), TOC (b), absorbance and pH (c, d), TKN, AN and NN (e) and relative removals of COD, TOC and concentration (f) versus. time observed during the degradation assays of the amine A1, with an initial concentration of 200 mg L⁻¹, performed with a BDD anode (8 cm²). Cathode: stainless steel (8 cm²); current density: 20 and 30 mA cm⁻²; electrolyte 0.035 M Na₂SO₄ aqueous solution [38].

(a)

(b)

(c)

(d)

(e)

(f)