| 聚合氯化铁对浊度和腐殖酸的絮凝特性研究 |
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| 引用本文： | 王红宇,赵华章,栾兆坤,刘维屏. 聚合氯化铁对浊度和腐殖酸的絮凝特性研究[J]. 环境科学, 2004, 25(3): 65-68 |
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| 作者姓名： | 王红宇 赵华章 栾兆坤 刘维屏 |
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| 作者单位： | 浙江大学环境科学研究所,杭州,310029;中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085 |
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| 基金项目： | 国家"十五"科技攻关项目 (2002BA806B04-01B); 国家自然科学基金资助项目(50178067). |
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| 摘 要： | 采用聚合氯化铁(PFC)絮凝剂在不同pH条件下处理高岭土悬浮液和腐殖酸溶液, 测试了絮凝过程中的Zeta电位、浊度和腐殖酸的去除率变化.结果表明:pH=4时, PFC投加量最小, 剩余浊度最大,投加范围最窄;pH=7时次之;pH=10时由于Fe(Ⅲ)离子的正电荷减弱, 电中和能力不强, 而且同时产生Fe(OH)3(s)的吸附作用使得剩余浊度最低, 投加范围最宽, 但投加量很大;在酸性条件下腐殖酸与Fe(Ⅲ)离子最容易发生络合反应;腐殖酸的存在并没有影响PFC的絮凝效果.
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| 关 键 词： | 聚合氯化铁 腐殖酸 络合反应 浊度 |
| 文章编号： | 0250-3301(2004)03-0065-04 |
| 收稿时间： | 2003-06-30 |
| 修稿时间： | 2003-09-05 |
Removal of Turbidity and Effect of Humic Acid in Flocculation by Polyferric Chloride |
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| WANG Hong-yu,ZHAO Hua-zhang,LUAN Zhao-kun and LIU Wei-ping. Removal of Turbidity and Effect of Humic Acid in Flocculation by Polyferric Chloride[J]. Chinese Journal of Environmental Science, 2004, 25(3): 65-68 |
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| Authors: | WANG Hong-yu ZHAO Hua-zhang LUAN Zhao-kun LIU Wei-ping |
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| Affiliation: | Institute of Environmental Science, Zhejiang University, Hangzhou 310029, China. hywang1970@sohu.com |
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| Abstract: | The removals of humic acid and turbidity by polyferric chloride under different coagulation conditions were studied (pH = 4, 7, 10). Zeta potential, turbidity and humic acid removal efficiency were analyzed. Experimental results showed that the dosage and scope of polyferric chloride (PFC) is the narrowest and the residual turbidity is biggest when pH = 4, the dosage and scope of PFC is the broadest and the residual turbidity is the least when pH = 10; Fe(III) can complex with humic acid under acidic condition; The effect of flocculation is not influenced by the presence of humic acid. |
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| Keywords: | polyferric chloride humic acid complexation reaction turbidity |
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