| 复合型聚合硅酸絮凝剂的制备及其除浊除磷性能研究 |
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| 引用本文： | 唐世娟,朱维耀,宋永会,袁鹏,彭剑峰.复合型聚合硅酸絮凝剂的制备及其除浊除磷性能研究[J].环境工程学报,2008,2(3):328-333. |
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| 作者姓名： | 唐世娟 朱维耀 宋永会 袁鹏 彭剑峰 |
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| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京,100083
2. 中国环境科学研究院,北京,100012 |
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| 基金项目： | 国家留学回国人员择优资助课题
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国家高层次留学人才回国资助项目 |
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| 摘 要： | 在聚合硅酸中同时引入铁、镁或铁、钙2种金属离子,制成复合型聚合硅酸絮凝剂;研究了其除浊、除磷的最佳絮凝条件,包括絮凝剂投加量、水样pH值对浊度和磷去除率的影响;采用喹啉重量法测定了各种絮凝剂形成的絮体中磷的含量.结果表明,当铁磷摩尔比为2.5～3.0,pH值为7.0～8.5时,对浊度和磷的去除率最高,均达99.0%以上,聚合硅酸镁铁(PSAMF)絮凝剂适合用于磷回收.
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| 关 键 词： | 复合型聚合硅酸絮凝剂 除浊 除磷 |
| 文章编号： | 1673-9108(2008)03-0328-06 |
| 修稿时间： | 2007年11月24 |
Research on the preparation of composite polysilicic acid flocculants and their performances |
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| Tang Shijuan,Zhu Weiyao,Song Yonghui,Yuan Peng and Peng Jianfeng.Research on the preparation of composite polysilicic acid flocculants and their performances[J].Techniques and Equipment for Environmental Pollution Control,2008,2(3):328-333. |
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| Authors: | Tang Shijuan Zhu Weiyao Song Yonghui Yuan Peng and Peng Jianfeng |
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| Institution: | School of Civil & Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,School of Civil & Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,Chinese Research Academy of Environmental Sciences,Beijing 100012,Chinese Research Academy of Environmental Sciences,Beijing 100012 and Chinese Research Academy of Environmental Sciences,Beijing 100012 |
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| Abstract: | Composite polysilicic acid flocculants were prepared by introducing ferric and magnesium or calcium ions into polysilicic acid simultaneously. The optimum flocculating conditions, including the dosage and the water pH value for the removals of turbidity and phosphorus were investigated. The phosphorus contents of the floccules were measured with quinoline weight method. The results showed that the flocculants had good flocculating effect under the conditions of Fe/P molar ratio of 2.5 to 3.0 and the pH value range of 7.0 to 8.5, under which the removal efficiencies of phosphorus and turbidity were more than 99.0%, and polysilicic acid with magnesium and ferric ions (PSAMF) were suitable for phosphorus recovery. |
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