项目名称: 特征有机物掺杂的锰基介孔材料组装及对有机结合态重金属去除机理
项目编号: No.51278051
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: 王洪杰
作者单位: 北京林业大学
项目金额: 85万元
中文摘要: 控制和消除重金属污染是保障我国当前和未来饮水安全重要而紧迫的课题之一。本项目针对常规净水工艺难以去除的天然水体中溶解性有机结合态重金属(Pb、Cd、Cu),研究特征有机物掺杂的锰基介孔材料构建和组装方法,考察不同特征有机物掺杂的锰基介孔材料与溶解性有机结合态重金属的作用效果及关键影响因素,探讨溶解性有机结合态重金属在水/有机掺杂的锰基介孔材料界面向颗粒态转化的反应过程机制,揭示特征有机官能团和锰基介孔材料表面羟基与溶解性有机结合态重金属的联合作用机制;建立基于该杂化材料的去除天然水体中溶解性有机结合态重金属的净水工艺原理,为此类污染水的净化提供科学依据和技术基础。
中文关键词: 重金属;溶解性有机物;锰氧化物;去除机制;杂化
英文摘要: It is urgent for our country to control and eliminate heavy metal pollution in nowadays and in the future. The heavy metals usually exit in the surface water by forming dissolvable and stable complexes with the dissolved organic matters(DOM). Traditional processing for water purification is not efficient for the removal of the dissolvable DOM-heavy metal complexes.Based on the composing methods of mesoporous hybrid of characteristic organins and manganese oxides, the removal effect of the hybrid material on the DOM-heavy metal complexes, the main influencing facors and the interface process are studied.The removal mechanism of the DOM-heavy meatl complexes by the hybrid material is also discussed.Based on the material,new purify processing for removal of the dissolvable DOM-heavy metal complexes is established.
英文关键词: Heavy metals;Dissorved organic materials;Removal mechanism;Manganese oxides;Hybridization