Singh Adarsh, Majumder Abhradeep, Saidulu Duduku, Bhattacharya Animesh, Bhatnagar Amit, Gupta Ashok Kumar
Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
J Environ Manage. 2024 Mar;354:120339. doi: 10.1016/j.jenvman.2024.120339. Epub 2024 Feb 24.
Micropollutants have become ubiquitous in aqueous environments due to the increased use of pharmaceuticals, personal care products, pesticides, and other compounds. In this review, the removal of micropollutants from aqueous matrices using various advanced oxidation processes (AOPs), such as photocatalysis, electrocatalysis, sulfate radical-based AOPs, ozonation, and Fenton-based processes has been comprehensively discussed. Most of the compounds were successfully degraded with an efficiency of more than 90%, resulting in the formation of transformation products (TPs). In this respect, degradation pathways with multiple mechanisms, including decarboxylation, hydroxylation, and halogenation, have been illustrated. Various techniques for the analysis of micropollutants and their TPs have been discussed. Additionally, the ecotoxicity posed by these TPs was determined using the toxicity estimation software tool (T.E.S.T.). Finally, the performance and cost-effectiveness of the AOPs at the pilot scale have been reviewed. The current review will help in understanding the treatment efficacy of different AOPs, degradation pathways, and ecotoxicity of TPs so formed.
由于药品、个人护理产品、农药及其他化合物的使用增加，微污染物在水环境中已变得无处不在。在本综述中，已全面讨论了使用各种高级氧化工艺（AOPs）从水基质中去除微污染物的情况，这些工艺包括光催化、电催化、基于硫酸根自由基的AOPs、臭氧化以及基于芬顿的工艺。大多数化合物都成功降解，降解效率超过90%，并产生了转化产物（TPs）。在这方面，已阐明了包括脱羧、羟基化和卤化在内的多种机制的降解途径。已讨论了分析微污染物及其TPs的各种技术。此外，使用毒性估计软件工具（T.E.S.T.）确定了这些TPs所造成的生态毒性。最后，对中试规模AOPs的性能和成本效益进行了综述。当前的综述将有助于理解不同AOPs的处理效果、降解途径以及由此形成的TPs的生态毒性。
