| 臭氧氧化对甲基苯磺酸的动力学模型 |
| |
| 引用本文： | 蔡少卿,何月峰,戴启洲,陈建孟. 臭氧氧化对甲基苯磺酸的动力学模型[J]. 化工学报, 2011, 62(5): 1414-1420. DOI: 10.3969/j.issn.0438-1157.2011.05.035 |
| |
| 作者姓名： | 蔡少卿 何月峰 戴启洲 陈建孟 |
| |
| 作者单位： | 浙江工业大学生物与环境工程学院，浙江 杭州 310014 |
| |
| 基金项目： | 浙江省重点科技创新团队项目,浙江省自然科学基金项目,浙江省重大科技专项 |
| |
| 摘 要： | 选用典型制药中间体对甲基苯磺酸(p-TSA)作为模型污染物，研究了臭氧氧化技术对p-TSA的直接氧化和间接氧化效果。结果表明，在pH为2～13、臭氧流量16～64 mg·min-1和污染物浓度100～5000 mg·L-1条件下，臭氧氧化p-TSA均符合拟一级动力学降解规律，且pH、臭氧投加量的增大都有利于拟一级动力学常数的提高，而初始污染物浓度的提高则抑制拟一级动力学常数的增大。建立了表征臭氧氧化过程中直接反应和间接反应各相对贡献率的动力学模型，定量研究了臭氧流量、
|
| 关 键 词： | 制药中间体 对甲基苯磺酸 臭氧 动力学 |
Kinetic model on ozonation of p-toluene sulfonic acid |
| |
| CAI Shaoqing,HE Yuefeng,DAI Qizhou,CHEN Jianmeng. Kinetic model on ozonation of p-toluene sulfonic acid[J]. Journal of Chemical Industry and Engineering(China), 2011, 62(5): 1414-1420. DOI: 10.3969/j.issn.0438-1157.2011.05.035 |
| |
| Authors: | CAI Shaoqing HE Yuefeng DAI Qizhou CHEN Jianmeng |
| |
| Abstract: | Direct and indirect ozonation of p-toluene sulfonic acid(p-TSA), a typical pollutant in pharmaceutical wastewater, was studied.The results showed that at the conditions of pH 2—13, ozone flow rate 16—64 mg·min-1 and pollutant concentration 100—5000 mg·L-1, the degradation followed the pseudo-first-order kinetics.The higher pH and ozone flow rate, and lower concentration were, the larger reaction constants.In order to consider the relative contribution of direct and indirect oxidation a kinetic model of ozonation was set up, in which 3 kHO2-·/k0 was selected as kinetic parameter.The effect of pH, ozone flow rate and pollutant concentration on 3 kHO2-·/k0 was analyzed quantitatively, which could provide fundamental data for the application of ozonation in pharmaceutical wastewater pollution control. |
| |
| Keywords: | |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载免费的PDF全文 |
|
