| 聚合氯化铁对浊度和腐殖酸的絮凝特性研究 |
| 摘要点击 1295 全文点击 1665 投稿时间：2003-06-30 修订日期：2003-09-05 |
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| 中文关键词 聚合氯化铁 腐殖酸 络合反应 浊度 |
| 英文关键词 polyferric chloride humic acid complexation reaction turbidity |
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| 中文摘要 |
| 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. |
| 英文摘要 |
| 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 higgest 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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