快速/大容量/可回收水体重金属应急吸附材料的研究

项目名称： 快速/大容量/可回收水体重金属应急吸附材料的研究

项目编号： No.51278295

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 建筑科学

项目作者： 贾金平

作者单位： 上海交通大学

项目金额： 80万元

中文摘要： 近期各地水体重金属污染事件频发，形势严峻；而现有应急处理技术往往无奈沿用普通废水处理的吸附及絮凝方法，亟须针对性开发高吸附容量、造价低廉、环境友好且可回收的优良吸附材料。本研究拟以生态型壳聚糖为原料，分别制备纳米级磁性可回收型高容量吸附剂、链球吸附纤维等新型吸附材料，用于水体重金属污染的应急处理。具体内容包括：1）新型可回收纳米级壳聚糖吸附剂合成方法的优化，在此基础上对新型可回收壳聚糖吸附剂对不同重金属吸附性能进行表征。2）建立磁性回收评价方法，研究新型可回收纳米壳聚糖吸附剂的磁性回收性能及磁稳定性，建立磁性回收的捕集效率方程，为磁性回收技术工程化应用打下基础。3）针对不同的污染区域的特点及控制目的，分别研究适用于纳米磁性微球吸附剂与链球吸附纤维的组合应用方案，为不同类型吸附材料的实际应用提供理论与技术支撑。

中文关键词： 重金属污染；壳聚糖；磁性；纤维；回收

英文摘要： Heavy metal pollution events happened everywhere around China in recent years and the situation is grim. However the traditional wastewater control methods are usually used as the emergency treatment technology, a new environmental friendly adsorption material with the properties of high adsorption capacity, low cost and easy recovery is need to be developed. In this research, nano magnetic microspheres and chian fiber adsorption materials are prepared with ecological chitosan as raw material and used in heavy metal water pollution emergency treatment.The details of research contents are shown as followed. 1) The optimization of preparation of the new recovery chitosan adsorption materials and the investigation of heavy metal adsorption characteristics of the new materials. 2) the evaluation method of magnetic recycling will be established,the magnetic stability of the nano magnetic microsphere will also be investigated and the magnetic recycling efficiency equation will be established,which lay the foundation for the engineering application of this new adsorption material.3) Aiming at the pollution characteristic of different area and and different control target, combined application of chitosan nano magnetic microsphere and chitosan adsorption chian fiber with high adsorption capacity are developed,which prov

英文关键词： heavy metal pollution；chitosan；magnetic；fiber；recycle