| 混凝过程中铝盐水解聚合反应平衡的流体动力学控制 |
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| 引用本文： | 刘敏,湛含辉,湛雪辉,戴玉春.混凝过程中铝盐水解聚合反应平衡的流体动力学控制[J].环境科学学报,2009,29(9):1911-1917. |
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| 作者姓名： | 刘敏 湛含辉 湛雪辉 戴玉春 |
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| 作者单位： | 1. 湖南工业大学包装与材料学院环保研究所,株洲,412007
2. 长沙理工大学化学与环境工程学院,长沙,410076 |
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| 基金项目： | 国家自然科学基金资助项目(No.20876037)~~ |
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| 摘 要： | 为了明确混凝过程中搅拌剪切等动力学因素对铝盐水解聚合反应平衡的影响,采用配制模拟水样作为混凝水系,用Ferron逐时络合比色法对水解产物形态进行表征,并将获取结果与用去离子水组成的纯净水系获取的结果进行对比分析.同时,研究了模拟混凝水系中搅拌剪切条件对铝盐水解反应产物形态分布的影响,考查了铝盐的碱化度和模拟混凝水系的pH值对混凝体系中搅拌剪切条件作用于铝盐水解产物形态分布的影响,并提出了体系搅拌剪切条件影响混凝水系中铝盐水解反应平衡的作用机理.结果表明,混凝过程中的铝盐水解产物形态分布明显受到体系搅拌剪切条件的影响,并且随着混凝水系中铝盐水解程度的增大和转化率的提高,铝盐的水解产物形态分布受到反应体系中搅拌剪切条件的影响加大.
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| 关 键 词： | 搅拌剪切条件 混凝体系 铝盐水解 扩散控制过程 |
| 收稿时间： | 2008/11/23 0:00:00 |
| 修稿时间： | 3/9/2009 4:17:31 PM |
Fluid dynamic control of hydrolysis reaction equilibrium of Al salts in the coagulation process |
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| LIU Min,ZHAN Hanhui,ZHAN Xuehui and Dai Yuchun.Fluid dynamic control of hydrolysis reaction equilibrium of Al salts in the coagulation process[J].Acta Scientiae Circumstantiae,2009,29(9):1911-1917. |
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| Authors: | LIU Min ZHAN Hanhui ZHAN Xuehui and Dai Yuchun |
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| Institution: | College of Packaging and Materials, Research institute of Enviromental Protection, Hunan University of Technology, Zhuzhou 412007,College of Packaging and Materials, Research institute of Enviromental Protection, Hunan University of Technology, Zhuzhou 412007,Institute of Chemistry and Environment Engineering, Changsha University of Science and Technology, Changsha 410076 and College of Packaging and Materials, Research institute of Enviromental Protection, Hunan University of Technology, Zhuzhou 412007 |
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| Abstract: | To identify the effects of kinetics factors such as stirring and shearing on Al salts hydrolysis reaction equilibria,simulated water samples are used as a coagulation water system,and Al hydrolysis species distribution is characterized by Al-Ferron timed complex-colorimetry. The results from coagulation systems are compared with ones from pure water systems composed of deionized water. The effects of stirring and shearing force on Al hydrolysis species distribution in coagulation systems are investigated. B... |
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| Keywords: | stirring and shearing conditions coagulation system Al salts hydrolysis diffuse control process |
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