气液固三相流化床内氧化吸附组合联用处理含酚废水

Phenolic wastewater treatment by combination of oxidation combined with adsorption and in a gas-liquid-solid three-phase fluidized bed reactor

研究了在气液固三相流化床内使用Fenton试剂、H103树脂氧化吸附组合联用处理模拟含酚废水的新工艺。探讨了pH值、反应温度、反应时间、气流速度、树脂固含率等因素对苯酚去除率的影响。实验结果表明:在模拟含酚废水pH=4、苯酚质量浓度为100 mg/L、通气量为0.12 m3/h的条件下,当单纯采用氧化法处理,在温度为60℃、反应30 min后,苯酚去除率为95.67%;而采用氧化吸附组合法,在温度为30℃、树脂固含率为4%、反应25 min后,苯酚去除率能够达到99.52%。

The efficiency of Fenton agent combined with macroporous resin H103 was examined using phenol as a model compound in simulated wastewater in a gas-liquid fluidized bed.A batch study was conducted to optimize parameters like the pH、temperature、reaction time,velocity and solid holdup governing the process.The experimental results indicated that the phenol removal rate was 95.67% only using the oxidation process at 60 ℃,pH= 4,ventilation volume of 0.12 m3/h,after reaction time of 30 min.the phenol removal rate was 99.52% using the oxidation combined with adsorption process at 30 ℃,pH= 4,the resin solid holdup rate of 4%,ventilation volume of 0.12 m3/h,after reaction time of 25 min.At this point the concentration of phenol was 100 mg/L.