应用三维电极-电生成Fenton试剂法处理含酚废水

On the Treatment of Phenol-containing Waste Water by 3-Dimensional Electrode-Electrogenerated Fenton Reagent Method

应用三维电极-电生Fenton试剂法处理了含酚废水,主要基于电解过程中产生的羟自由基的强氧化能力,将废水中酚电降解直至完全分解。对电解过程的最佳条件进行研究,在试验中,每隔一定时间从电解槽溶液中分取样液对其中组分用可靠方法进行了测定。结果表明:在下述操作条件下可获得废水样品中酚的满意的清除率:①电压10 V;②电解时间120 min;③进样废水中酚的质量浓度为200 mg·L^(-1);④废水样品初始酸度的pH为3;⑤活性碳加入量200 mg;⑥两极板间距离1 cm;⑦引入空气的速率1.25 L·min^(-1);⑧电流密度8 mA·cm^(-2);⑨反应温度50℃。

Method of 3-dimensional electrode-electrogenerated fenton reagent was used for the treatment of phenol-containing waste water by electrochemical degradation and ultimate destruction of the phenols through the strong oxidation of the hydroxyl free radical. Optimum conditions of the electrolytic process were studied and aliquots of sample solution were taken from the electrolytic bath intermittently for determination of its componental compounds. It was shown that satisfactory clearance rate of phenols was achieved under the following operation conditions： ① voltage： 10 V ② time of electrolysis： 120 min ③ concn, of phenol in the waste water introduced： 200 mg · L^-1 ④ initial acidity of waste water sample： pH 3 ⑤ amount of active carbon added： 200 mg; ⑥ distance between the 2 electrode plates： 1 cm; ⑦ flow-rate of air introduced： 1.25 L · min^-1; ⑧ current density： 8 mA · cm^-2 ⑨temperature of the reaction： 50℃.