Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, Quito 17-01-2184, Ecuador.
Departamento de Física, Escuela Politécnica Nacional, Ladrón de Guevara, Quito 17-12-866, Ecuador.
Molecules. 2020 Nov 26;25(23):5550. doi: 10.3390/molecules25235550.
Glyphosate [-(phosphonomethyl)-glycine] is a herbicide with several commercial formulations that are used generally in agriculture for the control of various weeds. It is the most used pesticide in the world and comprises multiple constituents (coadjutants, salts, and others) that help to effectively reach the action's mechanism in plants. Due to its extensive and inadequate use, this herbicide has been frequently detected in water, principally in surface and groundwater nearest to agricultural areas. Its presence in the aquatic environment poses chronic and remote hazards to human health and the environment. Therefore, it becomes necessary to develop treatment processes to remediate aquatic environments polluted with glyphosate, its metabolites, and/or coadjutants. This review is focused on conventional and non-conventional water treatment processes developed for water polluted with glyphosate herbicide; it describes the fundamental mechanism of water treatment processes and their applications are summarized. It addressed biological processes (bacterial and fungi degradation), physicochemical processes (adsorption, membrane filtration), advanced oxidation processes-AOPs (photocatalysis, electrochemical oxidation, photo-electrocatalysis, among others) and combined water treatment processes. Finally, the main operating parameters and the effectiveness of treatment processes are analyzed, ending with an analysis of the challenges in this field of research.
草甘膦[(膦酸甲基)甘氨酸]是一种除草剂,有多种商业配方,通常用于农业控制各种杂草。它是世界上使用最广泛的农药,包含多种成分(助剂、盐类等),有助于有效到达植物中的作用机制。由于其广泛而不适当的使用,这种除草剂已在水中频繁检测到,主要是在农业区附近的地表水和地下水。它在水生环境中的存在对人类健康和环境构成慢性和远程危害。因此,有必要开发处理过程来修复受草甘膦、其代谢物和/或助剂污染的水生环境。本综述重点介绍了针对受草甘膦除草剂污染的水开发的常规和非常规水处理工艺;描述了水处理过程的基本机制,并总结了它们的应用。它涉及生物过程(细菌和真菌降解)、物理化学过程(吸附、膜过滤)、高级氧化工艺-AOP(光催化、电化学氧化、光电催化等)和组合水处理工艺。最后,分析了主要操作参数和处理过程的有效性,最后分析了该研究领域的挑战。