摘要
采用光助Fenton氧化法处理含邻氨基苯酚的模拟废水,考察了光强度、Fenton试剂用量、废水初始pH值、反应时间等对降解效果的影响,初步探讨了邻氨基苯酚的降解动力学规律。结果表明,在450 W高压汞灯照射及较强太阳光照射条件下,均可以明显加快Fenton法催化氧化降解邻氨基苯酚溶液的过程。当2.5 g/L的硫酸亚铁溶液用量为1.5 mL、6%H_2O_2用量为1.0 mL、模拟废水初始pH值为3.5～4时,太阳光照射下降解邻氨基苯酚的效果较好,反应35 min后降解率高达99%。邻氨基苯酚降解过程符合准一级反应动力学方程。
o - Aminophenol in waste water was degraded by photo - Fenton oxidation process. The affects of light intensity, amount of Fenton reagent, initial pH value of waste water, and reaction time on degradation effect of o- aminophenol were investigated. The degradation kinetics of o -aminophenol was briefly dis- cussed. The results showed that high pressure mercury lamp with 450 W or stronger sunlight could accelerate the degradation process of o - aminophenol. The degradation rate of o - aminophenol could be up to 99% with sunlight irritation for 35 min, amount of ferrous sulfate solution （2.5 g/L） 1.5 mL, amount of H2O2（6% ） 1.0 mL, initial pH value of simulative waste water 3.5 - 4. The degradation process of o - aminophenol by photo - Fenton conforms to pseudo - first order reaction kinetics equation.
出处
《精细石油化工进展》
CAS
2010年第6期43-46,共4页
Advances in Fine Petrochemicals
基金
河南省重点科技攻关项目(092102310259)
