Universidade Federal de Uberlândia, Instituto de Química, 38400-902 Uberlândia, MG, Brazil.
Universidade Federal de Uberlândia, Instituto de Química, 38400-902 Uberlândia, MG, Brazil; Faculty of Natural and Exact Sciences, Save University, 0301-01 Chongoene, Gaza, Mozambique.
Sci Total Environ. 2022 Aug 25;836:155605. doi: 10.1016/j.scitotenv.2022.155605. Epub 2022 Apr 30.
This work presents data regarding the occurrence and treatment of Contaminants of Emerging Concern (CECs) in Brazil in the past decade. The literature review (2011-2021) revealed the detection of 87 pharmaceutical drugs and personal care products, 58 pesticides, 8 hormones, 2 illicit drugs, caffeine and bisphenol A in distinct matrices (i.e.: wastewater, groundwater, sea water, rainwater, surface water, drinking water and hospital effluent). Concentrations of CECs varied from ng-μg L depending on the location, compound and matrix. The inefficiency of conventional wastewater treatment methods on the removal of CECs and lack of basic sanitation in some regions in the country aggravates contamination of Brazilian aquatic environments and poses potential environmental and health risks. Advanced oxidation processes (AOPs) are pointed out as viable and efficient alternatives to degrade CECs and prevent environmental contamination. A total of 375 studies involving the use of AOPs in Brazilian aqueous matrices were published in the last decade. Fenton and photo-Fenton processes, photo-peroxidation, ozonation, electrochemical advanced oxidation and heterogeneous photocatalysis are some of the AOPs applied by Brazilian research groups. Although many works discuss the importance of applying these technologies for CECs removal in real treatment plants, most of these studies assess the treatment of distilled water or simulated effluent. Therefore, the conduction of studies applying AOPs in real matrices are critical to drive the implementation of these processes coupled to conventional water and wastewater treatment in real plants in order to prevent the contamination of environmental matrices by CECs in Brazil.
本工作介绍了过去十年中巴西有关新兴关注污染物（CECs）的发生和处理的数据。文献综述（2011-2021 年）显示，在不同的基质（即：废水、地下水、海水、雨水、地表水、饮用水和医院废水）中检测到了 87 种药物和个人护理产品、58 种农药、8 种激素、2 种非法药物、咖啡因和双酚 A。CECs 的浓度因位置、化合物和基质的不同而在 ng-μg L 之间变化。常规废水处理方法对 CECs 的去除效率不高，以及该国一些地区缺乏基本卫生设施，加剧了巴西水生环境的污染，并构成了潜在的环境和健康风险。高级氧化工艺（AOPs）被认为是降解 CECs 和防止环境污染的可行和有效替代方法。在过去的十年中，巴西共发表了 375 篇涉及在巴西水基质中使用 AOPs 的研究。Fenton 和光 Fenton 工艺、光催化氧化、臭氧氧化、电化学高级氧化和多相光催化是巴西研究小组应用的一些 AOPs。尽管许多研究都讨论了应用这些技术去除 CECs 在实际处理厂中的重要性，但这些研究大多评估了蒸馏水或模拟废水的处理。因此，在实际基质中应用 AOPs 的研究对于推动这些技术与实际工厂中的常规水和废水处理相结合的实施至关重要，以防止 CECs 在巴西环境基质中的污染。
