| 阴离子对高浓度聚铁硅絮凝剂性能的影响 |
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| 引用本文： | 宋志伟,任南琪.阴离子对高浓度聚铁硅絮凝剂性能的影响[J].哈尔滨工业大学学报,2007,39(10):1577-1579. |
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| 作者姓名： | 宋志伟 任南琪 |
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| 作者单位： | 哈尔滨工业大学,市政环境工程学院,哈尔滨,150090;黑龙江科技学院,资源与环境工程学院,哈尔滨,150027;哈尔滨工业大学,市政环境工程学院,哈尔滨,150090 |
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| 摘 要： | 用工业水玻璃活化后与聚合铁共聚制得两类聚铁硅絮凝剂,分别为聚合硫酸铁硅(PFSS)和聚合氯化铁硅(PFCS),通过pH驰豫现象和透射电镜(TEM)、光子相关光谱(PCS)等表征方法探讨无机阴离子Cl-、SO42-对聚铁硅絮凝剂结构性能的影响.结果表明,PFSS水解速度较PFCS慢,但PFCS更稳定;PFSS的平均直径1348.8 nm,具有稀疏粗大的链网状结构;而PFCS平均粒径508.5 nm,具有致密而且比较均匀细小的链网状结构,而且处理低温低浊水时PFSS的絮凝效果优于PFCS.由此可见,不同的无机阴离子对高浓度聚铁硅絮凝剂的水解聚合、结构形貌以及絮凝效果均有显著的影响.
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| 关 键 词： | 复合型聚铁硅絮凝剂 pH弛豫 光子相关光谱 絮凝效果 |
| 文章编号： | 0367-6234（2007）10-1577-03 |
| 修稿时间： | 2006-01-05 |
Study on the influence of inorganic anion on the property of composite polyferric- silicate |
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| SONG Zhi-wei,REN Nan-qi.Study on the influence of inorganic anion on the property of composite polyferric- silicate[J].Journal of Harbin Institute of Technology,2007,39(10):1577-1579. |
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| Authors: | SONG Zhi-wei REN Nan-qi |
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| Abstract: | Two kinds of polyferric-silicate flocculants were prepared by using activated water-glass and polyferric which were respectively polyferric sulphate silicate(PFSS) and polyferric chlorate silicate(PFCS).The property of polyferric silicate with different anion was studied by means of pH relaxation,PCS and TEM technology.The results proved that the hydrolytic speed of PFSS was slower than that of PFCS,but the later was more stable.The mean diameter of PFSS was about 1348.8 nm with thick and strong chain-net structure,while the mean diameter of PFCS was about 508.5 nm with close and uniform chain-net structure.In addition,the PFSS coagulation effect was superior to that of PFCS when they were applied to treat low turbidity sewage at low temperature.Thus it can be seen that anion play an important role on the hydrolysis,structure and coagulation effect of composite polyferric-silicate. |
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| Keywords: | composite polyferric-silicate pH relaxation PCS coagulation effect |
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