| 铁炭微电解法降解TAIC废水 |
| |
| 引用本文： | 荣少鹏,孙亚兵,赵泽华,张艳,陆素洁,边琳.铁炭微电解法降解TAIC废水[J].环境工程学报,2013,7(12):4847-4853. |
| |
| 作者姓名： | 荣少鹏 孙亚兵 赵泽华 张艳 陆素洁 边琳 |
| |
| 作者单位： | 南京大学环境学院, 污染控制与资源化研究国家重点实验室, 南京 210046;南京大学环境学院, 污染控制与资源化研究国家重点实验室, 南京 210046;南京大学环境学院, 污染控制与资源化研究国家重点实验室, 南京 210046;南京大学环境学院, 污染控制与资源化研究国家重点实验室, 南京 210046;南京大学环境学院, 污染控制与资源化研究国家重点实验室, 南京 210046;南京大学环境学院, 污染控制与资源化研究国家重点实验室, 南京 210046 |
| |
| 基金项目： | 南京大学污染控制与资源化研究国家重点实验室自主研究课题（PCRRF10016） |
| |
| 摘 要： | TAIC（三烯丙基异氰脲酸酯）作为过氧化物交联或自由基反应交联的助交联剂被广泛应用。由于TAIC性质稳定难于生物降解，采用铁炭微电解法处理TAIC生产废水，并考察了铁炭比、进水pH值、反应时间对处理效果的影响，以及TAIC降解机理和反应动力学过程。结果表明，影响微电解工艺的因素主次关系为：pH>Fe/C质量比>反应时间；在最佳条件进水pH值为5，铁炭质量比为2：1，反应时间为135 min时，COD的去除率达到46%以上，TAIC的去除率达到48%以上。TAIC去除机理研究表明，微电解对TAIC废水的作用主要通过·H的还原和铁离子的絮凝作用，其中·H的还原作用是TAIC降解的主要原因。反应动力学分析表明，铁炭微电解法处理TAIC的降解过程基本符合二级反应动力学规律，通过建立模型并拟合出了TAIC降解的二级反应动力学方程。
|
| 关 键 词： | 铁炭微电解 TAIC 机理研究 反应动力学 |
| 修稿时间： | 3/1/2013 12:00:00 AM |
Degradation of TAIC by iron-carbon micro-electrolysis |
| |
| Rong Shaopeng,Sun Yabing,Zhao Zehu,Zhang Yan,Lu Sujie and Bian Lin.Degradation of TAIC by iron-carbon micro-electrolysis[J].Techniques and Equipment for Environmental Pollution Control,2013,7(12):4847-4853. |
| |
| Authors: | Rong Shaopeng Sun Yabing Zhao Zehu Zhang Yan Lu Sujie and Bian Lin |
| |
| Institution: | State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, China;State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, China;State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, China;State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, China;State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, China;State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, China |
| |
| Abstract: | TAIC (triallyl isocyanurate) is widely used as a coagent for peroxide crosslinking or radical crosslinking. The iron-carbon micro-electrolysis was selected to treat TAIC in this study because it is stable and difficult to be biodegraded. The factors that affect the TAIC removal efficiency including Fe/C mass ratio,pH and reaction time were studied. Furthermore,the reaction kinetics and degradation mechanism were investigated. Orthogonal experiments were carried out to determine the order of different factors and optimal conditions as follows:pH>Fe/C mass ratio >reaction time; pH=5.0,Fe/C mass ratio=2:1,reaction time = 135 min. Under optimum conditions,the removal efficiency of COD and TAIC was over 46% and 48%,respectively. The reduction of ·H and flocculation of iron ions were the main reasons of the TAIC degradation,and the reduction of ·H played an important role in the degradation process. The results of kinetics indicated that the degradation of TAIC basically accorded with the second order kinetics,and a second order kinetic model was established. |
| |
| Keywords: | iron-carbon micro-electrolysis TAIC mechanism study reaction kinetics |
|
| 点击此处可从《环境工程学报》浏览原始摘要信息 |
| 点击此处可从《环境工程学报》下载免费的PDF全文 |
|
