机构地区: 中南大学化学化工学院
出 处: 《中南大学学报(自然科学版)》 2011年第11期3284-3288,共5页
摘 要: 研究在流化床内使用Fenton试剂氧化处理模拟含酚废水,探讨H2O2和Fe2+的初始浓度、H2O2与Fe2+的摩尔比(n(H2O2)/n(Fe2+))、pH、反应温度、反应时间和通气量等因素对苯酚去除率的影响。确定最佳处理条件为:c(H2O2)=12 mmol/L,n(H2O2)/n(Fe2+)=4:1,pH=4,温度为60℃,反应时间为30 min,通气量为0.12 m3/h,在此最佳实验条件下苯酚的去除率可达96%,此时的苯酚质量浓度为100 mg/L。 The removal rate of phenol from simulated wastewater was studied using gas-liquid fluidized bed with the Fenton reagent.The factors that affect the removal rate of phenol were investigated,including the initial concentrations of hydrogen peroxide c(H2O2) and c(Fe2+),the molar ratio of n(H2O2)/n(Fe2+),pH value,temperatures,reaction time,and the ventilation volume.The results show that optimal operating conditions are: c(H2O2)=12 mmol/L,n(H2O2)/n(Fe2+)=4:1,pH=4,temperature of 60 ℃,reaction time of 30 min and ventilation volume of 0.12 m3/h.Under these conditions,the phenol removal rate can reach 96%,and the mass concentration of phenol is 100 mg/L.
领 域: [环境科学与工程]