Recent advances in removing glyphosate herbicide and its aminomethylphosphonic acid metabolite in water

The glyphosate herbicide (GLY) is used globally to combat the weeds. This herbicide has been detected in different water resources and even in plant and food samples due to its hydrophilic properties. The GLY metabolite [aminomethylphosphonic acid (AMPA)] is highly deleterious to human health and aquatic biota. As a result, detection and remediation technologies have been the object of study in recent years. This review focuses on ecotoxicology, the presence of GLY in natural waters, detection methods in water, mitigation, and removal by adsorption. The adsorption method is discussed in detail with a main emphasis on optimization through pH, adsorbent dose, and contact time. The kinetics and thermodynamics of the removal were also described. The simulation studies are also included to understand the mechanism of removal at the supramolecular level. The regeneration of the adsorbent aspect has been discussed for making adsorption economic. Finally, Knowledge gaps and prospects are also highlighted to make this article the source for future advanced research in this area.