| 颗粒表面有机分子形态及其对混凝的影响研究 |
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| 引用本文： | 钟润生,张锡辉.颗粒表面有机分子形态及其对混凝的影响研究[J].深圳信息职业技术学院学报,2013(3):82-91. |
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| 作者姓名： | 钟润生 张锡辉 |
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| 作者单位： | [1]深圳信息职业技术学院交通与环境学院,广东深圳518172 [2]清华大学深圳研究生院环境工程与管理研究中心,广东深圳518055 |
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| 基金项目： | 广东省自然科学基金（S2012040007649）;深圳市基础研究计划（JCYJ20120615101444779） |
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| 摘 要： | 对水处理中矿物胶体颗粒表面附着有机物分子的状态下的混凝过程进行了实验研究。结果表明,胶体颗粒表面附着有机物分子形态结构具有复杂性和多变特性,吸附在胶体颗粒表面的有机物分子的各种结构型式会引起胶体颗粒表面性质的改变,以及这些分子形态结构会对混凝过程形成影响,包括颗粒物的作用半径,胶体稳定性,颗粒物之间的絮凝机理及絮体结构变化。这对于理解有机物分子存在条件下的胶体混凝过程的复杂性具有重要的理论意义和指导实践作用。
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| 关 键 词： | 混凝 表面形态 胶体稳定性 分形维数 腐殖酸 |
Effects of conformation of adsorbed organic molecules on colloidal particle coagulation |
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| ZHONG Runsheng,ZHANG Xihui.Effects of conformation of adsorbed organic molecules on colloidal particle coagulation[J].Journal of Shenzhen Institute of Information Technology,2013(3):82-91. |
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| Authors: | ZHONG Runsheng ZHANG Xihui |
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| Institution: | 2 ( 1.School of Transportation and Environmental Science, Shenzhen Institute of Information Technology, Shenzhen 518172, P.R. China; 2.Research Center for Environmental Engineering ＆ Management, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, P.R. China) |
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| Abstract: | The molecular morphology of coagulation focuses on the coagulation processes for particles adsorbed with organic molecules in water treatment. The results indicated that the characteristics of conformation of organic molecules adsorbed on the colloid particle were the complexity and variation of the morphological structures of organic molecules adsorbed on particles. A number of morphological structures of organic molecules had significant influences on the characteristics of particle interfaces and coagulation of colloid particles, including the interaction radius of particles, colloidal stability, flocculation mechanisms and floc structure. It is of both theoretical and practical significance in understanding the complexity of coagulation processes in the presence of organic molecules in water. |
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| Keywords: | coagulation surface conformation colloidal stability fractal dimension humic acid |
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