钛柱撑蒙脱石材料深度处理污水重金属离子的机理研究

项目名称： 钛柱撑蒙脱石材料深度处理污水重金属离子的机理研究

项目编号： No.51464007

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 矿业工程

项目作者： 庹必阳

作者单位： 贵州大学

项目金额： 50万元

中文摘要： 传统技术对污水重金属离子处理可挖掘的潜力已很小，德国、欧盟已着手玻璃固化、高磷土吸附等处理污水重金属离子技术的研究。结合我国国情，钛柱撑蒙脱石材料深度处理污水重金属离子的机理研究被提出，旨在针对污水重金属离子的物化特性，通过钛柱撑蒙脱石材料脱除污水重金属离子的试验研究，探清钛柱撑蒙脱石材料的吸附、中和及截留作用机理，以及载体材料层间阳离子与重金属离子的交换机理，同时考察钛柱撑蒙脱石载体材料的活性组分、吸附性能及层间纳米TiO2的光电化学响应等对污水重金属离子脱除效果的影响。技术思想是通过醇钛类物质柱撑制备的含钛蒙脱石材料来脱除污水重金属离子，着重从钛柱撑蒙脱石材料的比表面积、孔径分布、层间距及电荷量等对重金属离子脱除的影响进行研究，提高钛柱撑蒙脱石材料对重金属离子的选择性或非选择性吸附能力,从而提升污水重金属离子脱除效果。该项目对解决我国日益严重水资源缺乏和水污染的问题有着重要意。

中文关键词： 钛柱撑蒙脱石；污水；重金属离子；深度处理；吸附

英文摘要： The potential of treatment of heavy metal ions in wastewater by traditional technology is much small. Germany and European Union begin to research heavy metal ions treated by the methods of vitrification and adsorption of high phosphorus soil. According to our national conditions, the subject of Mechanism Study on Deep Treatment of Heavy Metal Ions in Wastewater by Montmorillonite Containing Titanium is proposed in the project. The purpose is to study the mechanism of adsorption, neutralization and entrapment of montmorillonite containing titanium material and ion exchange between interlayer cation and heavy metal ions, and discuss the influence of active components, adsorption property and photoelectrochemical response of nanometer TiO2 to the removal effect of heavy metal ions, according to the physicochemical properties of dissolved heavy metal ions in wastewater. The technology idea is to remove heavy metal ions in wastewater by montmorillonite containing titanium material prepared with alcohol titanium substances. The project focuses on the mechanism study of specific surface area, pore size distribution，interlayer spacing，and charge quantity of montmorillonite containing titanium material and ion exchange between interlayer cation and heavy metal ions to improve selective or non-selective adsorption capacity of montmorillonite containing titanium material to heavy metal ions, so as to improve the removal effect of heavy metal ions in wastewater. The project has much importance to solve the increasingly serious shortage and pollution of water resources in China.

英文关键词： titanium-pillared montmorillonite;wastewater;heavy metal ions;the deep treatment;adsorption