| 纳米TiO2-PAC复合絮凝剂的制备及絮凝效果研究 |
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| 引用本文： | 覃宗华,赵东风,李晓静,王金伟.纳米TiO2-PAC复合絮凝剂的制备及絮凝效果研究[J].江苏环境科技,2008,21(3):36-39. |
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| 作者姓名： | 覃宗华 赵东风 李晓静 王金伟 |
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| 作者单位： | 中国石油大学化学化工学院环境系,山东,东营,257061 |
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| 摘 要： | 将溶胶-凝胶法制备的TiO2粉体与缓慢加碱法制得的PAC通过超声反应聚合制得纳米TiO2-PAC复合絮凝剂。通过絮凝实验表明：TiO2-PAC无论是在去除悬浮物，还是在降低CODG和色度方面，均优于普通PAC和AlCl30絮凝过程是纳米TiO2的强吸附作用和PAC的吸附电中和、吸附架桥和沉淀网捕作用共同作用的结果。
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| 关 键 词： | 纳米TIO2 聚合铝 复合絮凝剂 絮凝机理 |
Study on Preparation and Flocculation Effect of Nano-TiO2-Polyaluminium Chloride |
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| QIN Zong-hua,ZHAO Dong-feng,LI Xiao-jing,WANG Jin-wei.Study on Preparation and Flocculation Effect of Nano-TiO2-Polyaluminium Chloride[J].Jiangsu Environmental Science and Technology,2008,21(3):36-39. |
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| Authors: | QIN Zong-hua ZHAO Dong-feng LI Xiao-jing WANG Jin-wei |
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| Institution: | QIN Zong-hua, ZHAO Dong-feng, LI Xiao-jing, WANG Jin-wei |
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| Abstract: | Under the condition of ultrasonic dispersion, nano-TiO2-polyaluminium chloride （nano-TiO2-PAC） can be made of nanometer TiO2 prepared by So-Gel method and polyaluminium chloride prepared by slow alkali addition method. The result of experiments shows that nano-TiO2-PAC is better than common PAC and AlCl3 in the removal of suspension substance, chemical oxygen demand （CODCr） and chroma. The Process of flocculation is the result of Nano-TiO2 with strongly absorption and PAC with adsorption, charge neutralization, bridging and network capturing. |
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| Keywords: | Nano-TiO2 Polyaluminium chloride （PAC） Composite flocculant Coagulation mechanism |
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