应用化学2025，Vol.42Issue(3)：330-344,15.DOI:10.19894/j.issn.1000-0518.240236
硅铝基负载金属催化臭氧氧化焦化废水有机物效能对比
Comparison of the Efficacy of Silica-Alumina-Based Metal-Loaded Catalytic Ozone Oxidation of Organic Matter in Coking Wastewater
摘要
Abstract
Iron,copper,and titanium metal oxide-loaded catalysts,with a silica-aluminum base as the carrier,were prepared using the impregnation method to catalyze the ozonation treatment of biochemical effluent from coking wastewater(BTCW).The degradation of typical organic compounds(phenol,quinoline,and ethylene glycol)in the wastewater and the corresponding degradation mechanisms were investigated.The results showed that the silica-alumina-supported iron catalyst(Fe@SA)exhibited the best catalytic performance.For phenol,quinoline,and ethylene glycol wastewaters(initial concentration of 200 mg/L),the Chemical Oxygen Demand(COD)removals in the Fe@SA catalytic ozone oxidation system were 84.56％,39.38％,and 17.40％,respectively,which were 5％,6.36％,and 10.06％higher than those in the ozone oxidation system alone.The Total Organic Carbon(TOC)removal rates were 85.38％,15.07％,and 79.98％,respectively,representing improvements of 40.48％,15.07％,and 79.98％compared to the ozone oxidation system alone.The removal efficiencies of phenol,quinoline,and ethylene glycol in the Fe@SA catalytic ozone oxidation system were 99.99％,72.79％,and 99.79％,respectively.The results for actual BTCW showed that the Fe@SA catalytic ozone oxidation system achieved COD and TOC removal rates of 48.40％and 52.87％,respectively.Stability tests indicated that Fe@SA maintained high catalytic activity after five cycles of reuse,with COD and TOC removal rates decreasing by no more than 2％.Characterization analyses revealed that the Fe@SA primarily on electron transfer between different valence states of iron ions and its promotion of hydroxyl(—OH)generation.These findings provide theoretical and technical support for the development of efficient catalysts and the advanced treatment of coking wastewater.关键词
焦化废水/催化臭氧氧化/负载型催化剂Key words
Coking wastewater/Catalytic ozone oxidation/Catalyst characterization分类
化学引用本文复制引用
刘文佳,杨梦鑫,王亚静,刘艳芳,张妙雨,熊奕衡..硅铝基负载金属催化臭氧氧化焦化废水有机物效能对比[J].应用化学,2025,42(3):330-344,15.基金项目
河北省重点研发项目(Nos.19273601D,21323802G)资助 Supported by Hebei Province Key Research and Development Plan Project(Nos.19273601D,21323802G) （Nos.19273601D,21323802G）
