School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
Chemosphere. 2022 Feb;289:133208. doi: 10.1016/j.chemosphere.2021.133208. Epub 2021 Dec 7.
Various chemical treatment techniques are involved in removing refractory organic compounds from water and wastewater using the oxidation reaction of hydroxyl radicals (OH). The use of catalysts in advanced catalytic ozonation is likely to improve the decomposition of molecular ozone to generate highly active free radicals that facilitate the rapid and efficient mineralization and degradation of numerous organics. For the degradation of toxic organic pollutants in wastewater, the advanced catalytic ozonation process has been widely applied in recent years. Low utilization efficiency of ozone and ineffective mineralization of organic contaminants by ozone can be remedied with advanced catalytic ozonation. Advanced catalytic ozonation has gained popularity because of these merits. However, homogeneous catalytic ozonation has the disadvantage of producing secondary contaminants from the addition of metallic ions. Heterogeneous catalytic ozonation can overcome this drawback by utilizing metals, metallic oxides, and carbon materials as a catalyst of efficacy and stability. This review discusses various aspects of catalytic ozonation in wastewater treatment of pharmaceutical pollutants, application of catalytic ozonation process in typical wastewater, and prospects in advancing the techniques in heterogeneous catalytic ozonation.
利用羟基自由基（OH）的氧化反应，各种化学处理技术都涉及到从水中和废水中去除难处理的有机化合物。在高级催化臭氧化中使用催化剂可能会改善分子臭氧的分解，生成高活性自由基，从而促进许多有机物的快速高效矿化和降解。对于废水中有毒有机污染物的降解，近年来高级催化臭氧化工艺已得到广泛应用。高级催化臭氧化可以弥补臭氧利用率低和臭氧对有机污染物矿化效果不佳的问题。高级催化臭氧化因其这些优点而受到欢迎。然而，均相催化臭氧化存在由于添加金属离子而产生二次污染物的缺点。通过使用金属、金属氧化物和碳材料作为高效稳定的催化剂，异相催化臭氧化可以克服这一缺点。本文综述了催化臭氧化在处理药物污染物废水中的各个方面，讨论了催化臭氧化工艺在典型废水处理中的应用，以及在推进异相催化臭氧化技术方面的前景。
