| 聚硅酸金属盐处理含氟废水的实验研究 |
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| 引用本文： | 李蔷薇,王淑勤,许佩瑶.聚硅酸金属盐处理含氟废水的实验研究[J].华北电力大学学报,2004,31(1):104-107. |
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| 作者姓名： | 李蔷薇 王淑勤 许佩瑶 |
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| 作者单位： | 华北电力大学,环境科学与工程学院,河北,保定,071003;华北电力大学,环境科学与工程学院,河北,保定,071003;华北电力大学,环境科学与工程学院,河北,保定,071003 |
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| 摘 要： | 含氟工业废水危害大,处理困难,采用高效无机絮凝剂——聚硅硫酸金属盐能有效降低废水中的氟。对影响三种絮凝剂聚硅酸硫酸铝(PSAS)、聚硅酸硫酸铁(PSFS)和聚硅酸硫酸铁铝(PSFAS)絮凝效果的主要因素进行实验研究,并对絮凝机理进行了深入探讨。研究表明,pH值、絮凝剂用量、沉降时间和Fe(Al)/Si摩尔比对絮凝剂除氟率的影响很大。硅的加入能有效提高絮凝剂中有效成分Alb和Feb的含量,使絮凝效果大大提高。
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| 关 键 词： | 含氟废水 聚硅酸金属盐 絮凝 去除率 |
| 文章编号： | 1007-2691(2004)01-0104-04 |
| 修稿时间： | 2003年5月15日 |
Experiments on treatment of wastewater containing fluoride by Polysilicate-metals Salts |
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| LI Qiang-wei,WANG Shu-qin,XU Pei-yao.Experiments on treatment of wastewater containing fluoride by Polysilicate-metals Salts[J].Journal of North China Electric Power University,2004,31(1):104-107. |
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| Authors: | LI Qiang-wei WANG Shu-qin XU Pei-yao |
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| Abstract: | The industrial wastewater containing fluoride is difficult to remove. It can be treated by high-efficient inorganic coagulant with polysilicate-metals salts. The primary factors affecting the defluorination efficiency of three coagulants, polysilicate aluminum sulfate(PSAS), polysilicate ferric sulfate(PSFS)and polysilicate ferric aluminum sulfate(PSFAS), ate experimentally studied. The removal mechanisms of polysilicate-metals salts ate discussed It is shown that pH value, dosage of cpagulants, settling time and molar ratio of Fe(Al)/Si had great effects on removal efficiency of fluoride. The input of silicon can increase the contents of effective ingredient known as Alb and Feb and improve flocculation greatly. |
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| Keywords: | wastewater containing fluoride polysilicate-metals salts coagulation removal efficiency |
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