| 聚硅酸硫酸铝制备及印染废水处理应用 |
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| 引用本文： | 叶敏,贾建洪,盛卫坚.聚硅酸硫酸铝制备及印染废水处理应用[J].化工生产与技术,2007,14(2):38-39,47. |
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| 作者姓名： | 叶敏 贾建洪 盛卫坚 |
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| 作者单位： | 1. 浙江省上虞市环境保护局,浙江,上虞,312300
2. 浙江工业大学化学工程与材料学院,杭州,310032 |
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| 摘 要： | 在非高剪切力条件下,将硫酸铝引入到聚合硅酸中合成了新型聚硅酸硫酸铝(PASS)絮凝剂.研究了PASS的合成工艺,优化了工艺参数;进行了PASS对印染废水的絮凝性能试验,并与其他无机高分子絮凝剂作了对比.结果表明,较优的PASS合成条件为:SiO2的质量分数为2.5%;pH=1.5～2.0;n(Al)∶n(Si)=1∶4;PASS对印染废水的CODCr去除率和除浊率均可达90%以上.PASS具有沉降速度快、絮体少、絮团紧密、脱水性能良好、CODCr去除率和除浊率高等优点.
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| 关 键 词： | 聚硅酸硫酸铝 聚硅酸 絮凝剂 印染 废水处理 |
| 文章编号： | 1006-6829（2007）02-0038-02 |
| 收稿时间： | 2007-02-09 |
| 修稿时间： | 2007年2月9日 |
Preparation Poly-nucleate Aluminum Hydroxy Silicate-Sulphate and Application of Textile Wastewater Treatment |
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| Ye Min,Jia Jianhong,Sheng Weijian.Preparation Poly-nucleate Aluminum Hydroxy Silicate-Sulphate and Application of Textile Wastewater Treatment[J].Chemical Production and Technology,2007,14(2):38-39,47. |
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| Authors: | Ye Min Jia Jianhong Sheng Weijian |
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| Abstract: | The novel inorganic ion-flocculant poly-nucleate aluminum hydroxy silicate-sulphate (PASS) was prepared from aluminum sulfate and polysilicic acid under non-high shear condition. The effects of process parameters were investigated and the optimal manipulation parameters were selected as fellows: the concentration of SiO2 2.5%, pH 1.5 to 2.0, mole ratio of Al and Si 1:4. The application of PASS in the process of dying waste water treatment was studied experimentally. As the results that PASS has the advantages of better flocculation effect and cheaper price comparing with other inorganic polymer flocculants. |
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| Keywords: | polynucleate aluminum hydroxy silicate-sulphate polysilicic acid PASS flocculation wastewater treatment |
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