Zawadzki Piotr
Department of Water Protection, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland.
Water Air Soil Pollut. 2022;233(9):374. doi: 10.1007/s11270-022-05831-2. Epub 2022 Sep 3.
The scientific data review shows that advanced oxidation processes based on the hydroxyl or sulfate radicals are of great interest among the currently conventional water and wastewater treatment methods. Different advanced treatment processes such as photocatalysis, Fenton's reagent, ozonation, and persulfate-based processes were investigated to degrade contaminants of emerging concern (CECs) such as pesticides, personal care products, pharmaceuticals, disinfectants, dyes, and estrogenic substances. This article presents a general overview of visible light-driven advanced oxidation processes for the removal of chlorfenvinphos (organophosphorus insecticide), methylene blue (azo dye), and diclofenac (non-steroidal anti-inflammatory drug). The following visible light-driven treatment methods were reviewed: photocatalysis, sulfate radical oxidation, and photoelectrocatalysis. Visible light, among other sources of energy, is a renewable energy source and an excellent substitute for ultraviolet radiation used in advanced oxidation processes. It creates a high application potential for solar-assisted advanced oxidation processes in water and wastewater technology. Despite numerous publications of advanced oxidation processes (AOPs), more extensive research is needed to investigate the mechanisms of contaminant degradation in the presence of visible light. Therefore, this paper provides an important source of information on the degradation mechanism of emerging contaminants. An important aspect in the work is the analysis of process parameters affecting the degradation process. The initial concentration of CECs, pH, reaction time, and catalyst dosage are discussed and analyzed. Based on a comprehensive survey of previous studies, opportunities for applications of AOPs are presented, highlighting the need for further efforts to address dominant barriers to knowledge acquisition.
科学数据审查表明，基于羟基或硫酸根自由基的高级氧化工艺在当前传统的水和废水处理方法中备受关注。人们研究了不同的高级处理工艺，如光催化、芬顿试剂、臭氧化以及基于过硫酸盐的工艺，以降解新出现的关注污染物（CECs），如农药、个人护理产品、药物、消毒剂、染料和雌激素类物质。本文概述了用于去除毒死蜱（有机磷杀虫剂）、亚甲基蓝（偶氮染料）和双氯芬酸（非甾体抗炎药）的可见光驱动高级氧化工艺。对以下可见光驱动处理方法进行了综述：光催化、硫酸根自由基氧化和光电催化。可见光作为其他能源之一，是一种可再生能源，也是高级氧化工艺中使用的紫外线辐射的极佳替代品。它为水和废水处理技术中的太阳能辅助高级氧化工艺创造了很高的应用潜力。尽管有大量关于高级氧化工艺（AOPs）的出版物，但仍需要更广泛的研究来探究在可见光存在下污染物降解的机制。因此，本文提供了有关新出现污染物降解机制的重要信息来源。该工作的一个重要方面是分析影响降解过程的工艺参数。讨论并分析了CECs的初始浓度、pH值、反应时间和催化剂用量。基于对先前研究的全面调查，介绍了AOPs的应用机会，强调需要进一步努力解决知识获取的主要障碍。
