Abstract:

The influences of the varieties of microwave sensitizers，microwave power and microwave irradiation time on the removing efficiency of phenol from phenol-containing wastewater in a refinery have been studied through experiments. The best technological conditions of microwave-assisted Fenton reagent catalytic oxidation technology for treating highly concentrated phenol-containing wastewater are ascertained. For the phenol wastewater with the mass concentration of 2 000 mg/L，the removing rate of phenol could reach 80%，when the dosage of Fe²⁺ is 1 600 mg/L， H₂O₂ is 0.3%，active carbon is 10 g/L，microwave power is 13.2 W and the time of microwave radiation is 5 min. The experiment results show that it is obviously much better than using active carbon-microwave alone and Fenton reagent oxidation alone.

Key words: phenol-containing wastewater, microwave irradiation, oil-refining wastewater

摘要：

采用微波辅助Fenton工艺处理某炼油厂含苯酚废水，通过实验研究了敏化剂种类、微波功率、微波辐射时间等因素对苯酚去除效果的影响，确定了微波辅助Fenton试剂催化氧化处理高浓度苯酚废水的最佳工艺条件．对于2 000 mg/L的苯酚废水，Fe2+用量为1 600 mg/L，H₂O₂投加质量分数为0.3%，活性炭投加量为10 g/L，微波功率为13.2 W，微波辐射时间5 min时，苯酚去除率可达到80%以上，明显优于单独活性炭微波和单独Fenton试剂氧化的处理效果．

关键词: 含酚废水, 微波辐射, 炼油废水

CLC Number: 

• X703