摘要
采用双频超声波(US/US)、过氧化氢(H2O2)和US/US/H2O2工艺处理含苯酚废水,研究了不同工艺对苯酚降解反应的影响。实验结果表明,在US/US,H2O2,US/US/H2O23种工艺条件下,苯酚降解均符合表观一级动力学。在苯酚初始质量浓度为100m g/L、溶液初始pH为5.0、反应液体积1L、H2O2用量250m g、温度30℃、处理时间90m in的条件下,采用US/US,H2O2,US/US/H2O2工艺,苯酚的去除率分别为62.8%,15.4%,98.7%,苯酚降解的速率常数增强因子可达到4.481。推导出了简化的苯酚降解反应动力学模型。
Phenol solution was treated in three different processes separately namely dual - frequency ultrasonic wave（ US/US ）, H2O2 and US/US/H2O2, for phenol degradation in wastewater. In all three processes, the phenol degradation was apparent first order reaction and phenol removal rate approximately lineally increased with reaction time. Synergetic effect existed in US/US/H2O2 process. Under following conditions： phenol initial concentration 100 mg/L, temperature 30 ℃, initial pH 5.0, H2O2 250 mg, phenol solution volume 1 L and treatment time 90 min, phenol removal rate in US/US, H2O2 and US/US/H2O2 reached 62.8%, 15.4% and 98.7% respectively. Promoting factor of rate constant of kinetic model for phenol degradation was 4. 481. A simplified kinetic model for phenol degradation was derived and was proved to be well fitted for phenol degradation in presence of excess H2O2.
出处
《石油化工》
EI
CAS
CSCD
北大核心
2005年第11期1060-1063,共4页
Petrochemical Technology
关键词
超声波
过氧化氢
苯酚
协同效应
动力学
废水处理
ultrasonic wave
hydrogen peroxide
phenol
synergetic effects
kinetics
wastewater treatment
作者简介
赵德明（1976～），男，山东省泰安市人，博士，讲师，电话0571～88320208，电邮barbar@hzcnc．com
