中文摘要：

针对Fenton法处理废水效果不佳、试剂用量较大、投资成本较高的问题,采用形稳电极Ti/IrO2-Ta2O5电解与Fenton耦合法处理含酚废水。考察了处理时间、pH值、电压、H2O2和FeSO4·7H2O投加量对废水降解效果的影响,确定了Ti/IrO2-Ta2O5电解与Fenton耦合法最佳工艺条件,对比研究了电Fenton法与Fenton法降解含酚废水效果。结果表明：随着处理时间、H2O2和FeSO4·7H2O投加量的增加,苯酚和COD去除率呈现先增加后趋于平缓的趋势;随着p H值的升高呈现先增加后降低的趋势;在较低电压条件下,可获得良好的处理效果。在最佳工艺条件为p H值3.5、槽电压5.0V、FeSO4·7H2O投加量0.15g/L、H2O2投加量0.3mL/L、反应时间2min时,处理初始质量浓度为100 mg/L的含酚废水,COD去除率为40.7%,苯酚去除率为94.2%,高于Fenton法苯酚去除率16.2%。电解与Fenton耦合法在较低电压条件下处理含酚废水,处理效果优于Fenton法,具有良好的应用前景。

英文摘要：

Aiming at the poor treatment effect, the large reagent dosage and the high investment cost in Fenton method on the treatment of wastewater, the Fenton method coupled with Ti/IrO2-Ta205 electrolysis was used to treat the simulated wastewater of phenol. The influences of treatment time, initial pH, voltage, dosage of H2O2 and FeSO4 · 7H20 were investigated and the optimum operating conditions of Fenton method coupled with Ti/IrO2- Ta2Os electrolysis were determined. The removal rate with that of the Fenton method coupled with electrolysis and the Fenton method was compared. The results show that with the increase in electrolysis time and dosage of H2O2 and FeSO4 ·7H2O, both the phenol and the chemical oxygen demand （COD） removal rates first increase and then change slightly; with the increase in initial pH value, the phenol and COD removal rates first increase and then decrease ; the phenol and COD removal rates have a good treatment effect under the condition of low voltage. Under the optimal conditions of initial pH value 3.5, voltage 5.0 V, H20z dosage 0.3 mL/L, FeSO4·7H/O dosage 0.15 g/L, electrolysis time 2 min and the initial mass concentration 100 mg/L of phenol wastewater, the removal rate of COD reaches 40.7%, and the removal rate of phenol reaches 94.2%, which is 16.2% higher than that by Fenton method. With good application prospect, the Fenton method coupled with electrolysis has a good treatment effect under the condition of low voltage than the Fenton method.