The electrochemical oxidation of Naphthol Blue Black (NBB) solution by means of anodic oxidation with electro-generated H₂O₂ (AO-H₂O₂) and Electro-Fenton (EF) was studied, using boron doped diamond (BDD)/ carbon felt (CF) cell. The experiments were carried out in NaCl and Na₂SO₄ as supporting electrolytes with initial concentration of 0.1 mM of NBB. The studied parameters were pH, applied current, concentration of Fenton catalyst, concentration of supporting electrolytes, and Cl-/SO₄^2- mixture. The degradation of NBB was almost total when NaCl was used compared to Na₂SO₄, thanks to the electro-generated active chlorine (HClO/ClO-). The higher degradation is found with EF compared to AO-H₂O₂ process, the kinetic of degradation of NBB always follows a pseudo first-order reaction. The optimum conditions for the mineralization of NBB (i.e., 0.1 mM NBB, 50 mM Na₂SO₄ at pH 3.0, 0.1 mM Fe²⁺, and a current of 300 mA) were determined. These conditions yielded a total color removal in less than 10 min and 98% of total organic carbon (TOC) removal at 120 min electrolysis time. The biochemical oxygen demand/ Chemical oxygen demand (BOD/COD) ratio was decreased from 0.5 to 0.3, during the same timescales. Whereas, the mineralization current efficiency (MCE%) dropped from 21.5% to 0.05% in the electrolysis time range from 15- 120 min suggesting the concomitant parasitic reactions. The evolution of nitrite NO₂-, nitrate NO₃-, ammonium NH₄⁺, and sulfate SO₄^2- concentrations were also followed as the end-products during the electrolysis.

通过用阳极氧化的装置的萘酚蓝黑（NBB）的溶液的电化学氧化电产生ħ ₂ ö ₂（AO-H ₂ ö ₂）和电芬顿（EF）进行了研究，使用硼掺杂金刚石（BDD）/碳毡（CF）电池。实验在NaCl和Na ₂ SO ₄作为支持电解质中进行，初始浓度为0.1 mM NBB。研究的参数为pH，施加电流，Fenton催化剂的浓度，支持电解质的浓度和Cl- / SO ₄ ^2-混合物。与Na ₂ SO ₄相比，使用NaCl时NBB的降解几乎完全消失。，这要归功于电产生的活性氯（HClO / ClO-）。与AO-H ₂ O ₂工艺相比，EF的降解更高，NBB的降解动力学始终遵循伪一级反应。对于NBB（即，0.1mM的NBB，50mM的Na组成的矿化的最佳条件₂ SO ₄在pH 3.0，0.1mM的铁²⁺，并确定300 mA的电流。这些条件可在不到10分钟的时间内实现全部脱色，在120分钟的电解时间下可去除98％的有机碳。在相同的时间范围内，生化需氧量/化学需氧量（BOD / COD）比从0.5降低至0.3。而在15至120分钟的电解时间范围内，矿化电流效率（MCE％）从21.5％降至0.05％，表明伴随有寄生反应。电解过程中，最终产物亚硝酸盐NO _2-，硝酸盐NO _3-，铵NH ₄ ⁺和硫酸盐SO ₄ ^2-的浓度也随之变化。