黑龙江科技大学学报2023，Vol.33Issue(6)：829-834,6.DOI:10.3969/j.issn.2095-7262.2023.06.009
稀土改性TNTs/SnO2-Sb电极电催化氧化深度处理煤化工废水
Advanced treatment of coal chemical wastewater by electrocatalytic oxidation with rare earth modified TNTs/SnO2-Sb electrode
摘要
Abstract
This paper is an attempt to confirm the feasibility and reliability of rare earth doped titani-um-based tin dioxide nanocomposite in the quality and efficiency of coal chemical wastewater treatment.The study involves taking the prepared nanocomposite of titanium-based tin dioxide doped with rare earth as an anode to construct an electrocatalytic oxidation system;investigating its electrochemical advanced treatment efficiency for the secondary effluent from coal chemical enterprises;and combined with the test of hydroxyl radical generation ability on the electrode surface,analyzing the influence law behind current density and running time on the advanced treatment effect of the system.The results show that within acertainn time,increasing the current density can promote the generation ability of hydroxyl radical,and improve the efficiency of advanced treatment.Under the current density of 12.5 mA/cm2 for 4 h,the content of organic matter in the secondary effluent is greatly reduced,and the removal efficiencies of total phenol,COD,TOC and TN are 100%,75.82%,55.8%and 78.2%,respectively,and the COD con-centration in the effluent meets the reuse requirements of the enterprise.关键词
煤化工废水/深度处理/电催化氧化体系/纳米复合电极/羟基自由基Key words
coal chemical wastewater/advanced treatment/electrocatalytic oxidation system/nano-composite electrode/hydroxyl radical分类
资源环境引用本文复制引用
杨莉莎,郭颜铭..稀土改性TNTs/SnO2-Sb电极电催化氧化深度处理煤化工废水[J].黑龙江科技大学学报,2023,33(6):829-834,6.基金项目
国家自然科学基金项目(52000061) （52000061）
