| 壳聚糖-铁絮凝剂的制备及其絮凝性能 |
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| 引用本文： | 田国鹏,张雯,魏刚,熊蓉春.壳聚糖-铁絮凝剂的制备及其絮凝性能[J].北京化工大学学报(自然科学版),2008,35(4):47-51. |
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| 作者姓名： | 田国鹏 张雯 魏刚 熊蓉春 |
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| 作者单位： | 北京化工大学材料科学与工程学院,北京,100029;北京化工大学材料科学与工程学院,北京,100029;北京化工大学材料科学与工程学院,北京,100029;北京化工大学材料科学与工程学院,北京,100029 |
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| 摘 要： | 利用无机嵌入有机的方式改性壳聚糖制成壳聚糖-铁絮凝剂,使用高岭土悬浊液对其絮凝性能进行了考察。结果表明，当壳聚糖-铁絮凝剂（CTS-Fe）的投加量为5mg/L，m（CTS）∶m（Fe）=2∶1，pH=7时，絮凝效果最佳，沉降率为88.75%。并对壳聚糖-铁絮凝剂、壳聚糖、聚合氯化铁和壳聚糖-聚合氯化铁复合絮凝剂对高岭土悬浊液的处理效果进行了对比研究。结果表明，壳聚糖-铁絮凝剂的处理效果最好，且用量较少。
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| 关 键 词： | 絮凝剂 壳聚糖 聚合氯化铁 高岭土悬浊液 |
| 收稿时间： | 2008-01-10 |
Preparation and flocculation behavior of iron-chitosan flocculant |
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| TIAN GuoPeng,ZHANG Wen,WEI Gang,XIONG RongChun.Preparation and flocculation behavior of iron-chitosan flocculant[J].Journal of Beijing University of Chemical Technology,2008,35(4):47-51. |
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| Authors: | TIAN GuoPeng ZHANG Wen WEI Gang XIONG RongChun |
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| Institution: | College of Materials Science and Engineering, Beijing University of Chemistry and Technology, Beijing 100029, China |
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| Abstract: | Chitosan (CTS) has been modified by inorganic impregnation to prepare an CTS-Fe flocculant. The flocculation behavior of the resulting material was investigated with kaoline. The results showed that the optimum conditions are as follows: a dosage of CTS-Fe of 5mg/L, a molar ratio in the flocculant of m(CTS)∶m(Fe)=2∶1, and a pH of 7. Under these conditions, the sedimentation rate with kaoline was 88.75%. The flocculation efficiency of CTS-Fe was found to be superior to those of chitosan, polyiron (PFC) and polyiron-chitosan and a lower dosage of CTS-Fe is required. |
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| Keywords: | flocculant chitosan polyiron kaoline suspension |
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