【摘要】 工业有机废水具有成分复杂、生物毒性高、难降解等特性，已成为水污染治理领域的重大挑战。传统废水处理工艺的效率较低，单一高级氧化技术亦存在明显瓶颈，难以满足复杂废水的高效处理需求。为此，采用臭氧-电芬顿耦合工艺分别对甲基橙和孔雀石绿模拟废水进行处理，并与单一的臭氧工艺和电芬顿工艺进行比较。实验结果显示，在臭氧产生速率1.8 g/h、臭氧/空气混合气体流量500 L/h、电流100 mA的优化条件下，采用臭氧-电芬顿耦合工艺对废水处理40 min，甲基橙的脱色率达94.4%，孔雀石绿的脱色率达99.6%，处理效果优于单一的臭氧工艺和电芬顿工艺。结果表明该耦合工艺可通过协同强化效应突破单一氧化技术的性能瓶颈，为难降解有机废水的高效处理提供实用性技术方案。更多还原

【Abstract】 Industrial organic wastewater has become a major challenge in water pollution control due to its complex composition, high biological toxicity, and refractory biodegradability. Traditional wastewater treatment processes exhibit low efficiency, and single advanced oxidation technologies also present obvious bottlenecks, failing to meet the demand for efficient treatment of complex wastewater. Therefore, the ozone-electro-Fenton coupling process was employed to treat simulated wastewater containing methyl orange or malachite green, and its performance was compared with those of the single ozone process and the single electro-Fenton process. The experimental results show that under the optimal conditions of an ozone generation rate of 1. 8 g/h, ozone/air mixed gas flow rate of 500 L/h, and current of 100 mA, after 40 minutes of treatment with the ozone–electro-Fenton coupling process, the decolorization rate of methyl orange reached 94. 4% and that of malachite green reached 99. 6%, superior to the corresponding values for the single ozone process or the single electro-Fenton process. The results indicate that the coupling process overcomes the bottleneck in single oxidation technologies by synergistically enhancing performance, providing a practical technical solution for the efficient treatment of refractory organic wastewater.更多还原