纳米铁炭微电解体系去除地下水中硝酸盐的机理及应用研究

项目名称： 纳米铁炭微电解体系去除地下水中硝酸盐的机理及应用研究

项目编号： No.41272266

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 刘国

作者单位： 成都理工大学

项目金额： 75万元

中文摘要： 针对我国地下水硝酸盐氮污染日益严峻的形势和常规地下水处理技术存在的不足，研究纳米铁炭微电解技术去除地下水硝酸盐氮的关键科学问题，对于解决水资源匮乏和地下水污染问题有着十分重要的意义。本课题拟在已有工作的基础上，结合活性炭良好的吸附解吸性能和纳米铁的强还原性质，研究铁炭微电解体系降解硝酸盐氮污染物过程中的共性特征和基本规律，力争在纳米铁炭复合颗粒及分散悬浮液的宏量制备、材料基本性能与其微观几何尺寸之间的关系、炭颗粒有效负载和纳米铁还原性能的构效关系、去除过程的优化控制和去除效率提高的基本规律、硝酸盐的降解机理及反应动力学等方面做出有益的探索。为新型铁炭微电解复合材料研制及其机理研究提供较系统的理论基础和科学依据，为地下水硝酸盐污染物的有效去除提供新的技术路线和方法。

中文关键词： 纳米铁；活性炭；硝酸盐；地下水；

英文摘要： Nitrate level in groundwater is increasing in China and conventional water treatment techniques are faced challenge. Nanocrystalline iron and carbon micro electrolysis process as a new technique, can remove nitrate in groundwater potentially. Study on this process may tackle the shortage of water resources and problem of groundwater contamination. Based on the previous achievements, good adsorption and desorption of activated carbon in this project is combined with strong reducing property of nano iron. The effect of iron carbon micro electrolysis system will be investigated on degradation of nitrate pollutants and some common characteristics will be explored. The objections of the study include developing nanometer iron-carbon particles and dispersed suspension, showing the relationship between features and geometry size of material, showing the relationship between effective loads of carbon particles and reducing property of nano iron, detecting the mechanism of removal improvement and the mechanism of nitrate degradation and reaction kinetic. Through the study, a theoretical and scientific supports can be provided with development and mechanism of iron carbon micro electrolysis materials. Additionally, the study can indicate a new technical process and method to improve nitrate removal in groundwater.

英文关键词： nano iron；carbon；nitrate；groundwater；