稀土镨电极处理焦化尾水过程特性研究  

Process characteristics of praseodymium electrode in treating coking tail water

作　　者：敬双怡[1] 侯娜 范保建 于玲红[1] 李卫平[1] 殷震育[1] JING Shuang-yi;HOU Na;FAN Bao-jian;YU Ling-hong;LI Wei-ping;YIN Zhen-yu(School of Energy and Environment,Inner Mongolia University of Science&Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学能源与环境学院,内蒙古包头014010

出　　处：《现代化工》2021年第8期139-144,共6页Modern Chemical Industry

基　　金：内蒙古自然科学基金(2018LH04003)。

摘　　要：利用泡沫镍的通透性和三维立体网状结构,以泡沫镍为基体材料制备的Cu-Pr/C电极为阴极,以热分解法制备的Ti/RuO_(2)-Zr O_(2)-Ce钛基金属氧化物涂层电极为阳极,在初始p H为3、电流为200 m A、Fe^(2+)质量浓度为100 mg/L的条件下对焦化尾水TOC的去除率达83.7%。利用线性扫描、COD去除动力学拟合和稳定性实验研究了Cu-Pr/C电极的高催化性能、反应速率、去除效能及使用稳定性。通过三维荧光光谱、紫外-可见光谱、气质联用分析仪对处理水样进行分析,探究焦化尾水中难降解大分子有机物的去除规律,结果表明,Cu-Pr/C电极电解焦化尾水可以有效去除其中的芳香族化合物,将大分子有机物转化为小分子有机物,提高焦化尾水的处理效果。Nickel foam has permeability and three-dimensional network structure.Cu-Pr/C electrode that is prepared with nickel foam as matrix material is taken as the cathode,and Ti/Ru O_(2)-Zr O_(2)-Ce titanium-based metal oxide coating that is prepared by thermal decomposition is used as the anode to treat with coking tail.It is found that TOC removal rate of coking tail water can reach 83.7%when the initial p H is 3,the current is 200 m A,and Fe2+concentration is 100 mg·L^(-1).Linear scanning,COD removal kinetic fitting and stability experiments are utilized to determine the high catalytic performance,reaction rate,removal efficiency and stability of Cu-Pr/C electrode.By analyzing the treated water samples through three-dimensional fluorescence spectroscopy,ultraviolet-visible spectroscopy,and gas-mass spectrometry analysis,the removal rules of refractory macromolecular organics in coking tail water are explored.Results indicate that aromatic compounds in coking tail water can be effectively removed through Cu-Pr/C electrode electrolysis.Macromolecular organics have been converted into small molecular organics,improving the treatment effect to coking tail water.

关 键 词：泡沫镍 焦化尾水 电芬顿 催化性能 稀土镨 

分 类 号：TQ035[化学工程]