| 酸性介质对于聚硅酸铁混凝性能的影响 |
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| 引用本文： | 姜忠群,于水利,许霞,王冬光.酸性介质对于聚硅酸铁混凝性能的影响[J].环境科学与技术,2009,32(7). |
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| 作者姓名： | 姜忠群 于水利 许霞 王冬光 |
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| 作者单位： | 哈尔滨工业大学市政环境工程学院,黑龙江,哈尔滨,150090 |
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| 基金项目： | 国家科技支撑重点项目 |
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| 摘 要： | 对新型混凝剂聚硅酸铁(PSF)中合成原料聚硅酸(PS)进行改性,制备出盐酸,硫酸,硝酸,醋酸以及磷酸为主体酸化剂的改性聚硅酸铁混凝剂(n(Si/Fe)=1),进行混凝实验研究并对PSF的混凝机理进行初步的探讨。结果表明,PSF中的PS性质改变并未降低其混凝性能,在投药量为0.18mmol/L时,取得良好的净水效果。PSF主要依靠电中和/脱稳及吸附架桥综合作用产生净水性能。
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| 关 键 词： | 聚硅酸铁 酸化剂改性 混凝性能 混凝机理 |
Effect of Acid on Coagulation Efficiency of Polisicate-ferric(PSF) |
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| JIANG Zhong-qun,YU Shui-li,XU Xia,WANG Dong-guang.Effect of Acid on Coagulation Efficiency of Polisicate-ferric(PSF)[J].Environmental Science and Technology,2009,32(7). |
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| Authors: | JIANG Zhong-qun YU Shui-li XU Xia WANG Dong-guang |
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| Institution: | School of Municipal and Environmental Engineering;Harbin Institute of Technology;Harbin 150090;China |
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| Abstract: | Polisicate(PS)as a part of polisicate-ferric(PSF)was modified and prepared for production of HCl,H2SO4,HNO3,H3PO4 and CH3COOH respectively.Corresponding PSF with different acids were prepared and coagulation mechanism was discussed.Results showed that the coagulation efficiency of PSF was not affected by the modification of PS except H3PO4.Good coagulation efficiency was obtained when dosage of PSF was 0.18mmol/L.As an inorganic polymer coagulant,main coagulation mechanism of PSF was charge-neutralization,d... |
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| Keywords: | polisicate-ferric(PSF) acid coagulation performance coagulation mechanism |
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