Removal and degradation of glyphosate in water treatment: a review

Re-registration Challenges of Glyphosate in the European Union

“…As indicated, through water pollution its formulations can disturb aquatic ecosystems (Vera et al, 2010;Perez et al, 2011) including fish (Jofré et al, 2013). Removal or degradation of glyphosate residues from raw drinking water by bank filtration may not be efficient, but oxidants used in water treatment (e.g., Cl 2 or O 3 ) were shown to be effective in degrading their concentration below the EU drinking water threshold level of 0.1 µg/l (Jönsson et al, 2013). Nonetheless, glyphosate residues were reported in bottled drinking water (Rendón-von Osten and Dzul-Caamal, 2017).…”

Electrochemical degradation and mineralization of glyphosate herbicide

“…The CCD matrix is comprised of three parts: factorial matrix (assays 5, 6, 12, 13), a star matrix (assays 1,3,8,11) and a group of points at the center of the experiments (assays 2, 4, 7, 9, 10).…”

“…Several countries, including the United States, Canada, and Brazil have recorded some negative effects on human and animal health due to the glyphosate contamination in water [6][7][8][9][10]. Some studies reported that herbicides are entering the aquatic system, although in extreme low concentrations may introduce a potential hazard for human, in particular where no advanced water treatments facility are used [11]. The WHO (World Health Organization) has set the recommendation concentration of glyphosate alone or in combination with AMPA of 0.9 mg L -1 for drinking water [12] and the Environment Canada also set a limit of 0.8 mg glyphosate L -1 for the protection of aquatic life [13].…”

“…The treatment using UV alone can be ineffective for glyphosate and AMPA oxidation. The combination of UV with H2O2 induced a good degradation of glyphosate, but not effective for AMPA, [11]. For instance, herbicide glyphosate was removed from water using UV/H2O2 system: after 5h of UV irradiation (40W), of hydrogen peroxide) [16].…”

Determination of Herbicides and Its Metabolite in Soil and Water Samples by Capillary Electrophoresis-laser Induced Fluorescence Detection Using Microwave-assisted Derivatization

“…1 Although they were judged benign to human health by major health organizations, such as the United States Environmental Protection Agency and World Health Organization, 2,3 questions about possible toxic effects on the environment and humans have been raised and studied over the past years. 4 Aminomethylphosphonic acid (AMPA), the main metabolite of GLYP, is commonly found to last for a long time on soil and water.…”