摘 要
随着工业发展，难降解有机物对环境造成的污染日益严重，传统处理方法难以满足高效去除要求。本研究旨在探讨电化学氧化技术在处理此类污染物方面的性能，以期为实际应用提供理论依据和技术支持。采用自制的三维电极反应器，选择具有代表性的难降解有机物如染料废水作为处理对象，通过改变电流密度、电解质浓度、pH值等操作条件，系统考察了各因素对电化学氧化过程的影响。实验结果表明，在适宜的操作条件下，该技术对目标污染物的去除率可达90%以上，且矿化程度较高。创新性地引入了新型催化材料作为阳极材料，显著提高了电极活性和稳定性，降低了能耗。此外，基于密度泛函理论计算与原位表征技术相结合，深入揭示了有机物的降解路径及中间产物演变规律，发现羟基自由基为主要活性物种，其生成量与电极表面状态密切相关。研究表明，电化学氧化技术凭借其独特优势，在难降解有机物处理领域展现出巨大潜力，为解决相关环境问题提供了新思路和有效途径。
关键词：电化学氧化 难降解有机物 三维电极反应器
Abstract
With the development of industry, pollution caused by recalcitrant organic compounds has become increasingly severe, and traditional treatment methods struggle to meet the requirements for efficient removal. This study aims to investigate the performance of electrochemical oxidation technology in treating such pollutants, providing theoretical basis and technical support for practical applications. A self-made three-dimensional electrode reactor was employed, with representative recalcitrant organic compounds such as dye wastewater selected as the treatment targets. By varying operational conditions including current density, electrolyte concentration, and pH value, the effects of these factors on the electrochemical oxidation process were systematically examined. Experimental results demonstrated that under optimal operating conditions, the removal efficiency of target pollutants exceeded 90%, with a high degree of mineralization. Innovatively, novel catalytic materials were introduced as anode materials, significantly enhancing electrode activity and stability while reducing energy consumption. Furthermore, by integrating density functional theory calculations with in-situ characterization techniques, the degradation pathways and evolution patterns of intermediate products were thoroughly elucidated, revealing that hydroxyl radicals are the primary active species, whose generation is closely related to the state of the electrode surface. The study indicates that electrochemical oxidation technology, owing to its unique advantages, exhibits great potential in the field of recalcitrant organic compound treatment, offering new insights and effective solutions to address relevant environmental issues.
Keyword:Electrochemical Oxidation Hard-To-Degraded Organic Compounds Three-Dimensional Electrode Reactor
目 录
引言 1
1电化学氧化原理与机制 1
1.1难降解有机物特性分析 1
1.2电化学氧化基本原理 2
1.3影响电化学氧化的因素 2
2实验材料与方法 3
2.1实验材料选择依据 3
2.2电极材料的制备与表征 3
2.3分析检测方法建立 4
3电化学氧化处理性能 5
3.1不同有机物去除效果 5
3.2反应动力学研究 5
3.3中间产物及毒性变化 6
4工程化应用前景 6
4.1处理系统设计优化 6
4.2运行成本效益分析 7
4.3技术推广可行性评估 7
结论 8
参考文献 9
致谢 10
