电化学氧化法降解苯酚研究

Study on Degradation of Phenol by Electrochemical Oxidation

采用电化学氧化法对苯酚模拟废水进行处理,通过正交实验法考察不同阳极材料、电解电压、极板间距和电解质浓度对苯酚降解效果的影响,实验结果表明:在电解电压9 V,钢板作阳极,极板间距15 mm,电解质浓度0.09 mol/L条件下,苯酚去除率可达92.86%,CODcr去除率为86.38%。最后对在最佳实验条件组合下处理后的苯酚溶液用气相色谱–质谱联用仪进行检测和分析,初步探讨了电化学氧化法降解苯酚的途径。

The simulated phenol wastewater was treated using electrochemical oxidation method and the effects of different anode materials, electrolysis voltage, plate spacing and electrolyte concentration on the degradation of phenol were investigated by orthogonal experiment. The experimental results show that under the conditions of electrolysis voltage of 9 V, steel plate as anode, plate spacing of 15 mm and electrolyte concentration of 0.09 mol/L, the phenol removal rate can reach 92.86%;CODcr removal rate is 86.38%. Finally, Gas chromatography-mass spectrometry was used to detect and analyze the phenol solution treated under the optimal combination of experimental conditions, and the way of electrochemical oxidation to degrade phenol was discussed.