Keywords :
AminoMethylPhosponic acid (AMPA); Anaerobic digestion; Constructed wetlands; Glyphosate; Reject water; Sewage; Wastewater; alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid; Water; Advanced treatment; Aminomethylphosponic acid; Constructed wetland; Glyphosates; Point-sources; Population densities; Reject waters; Sludge treatment; Small population; Wastewater sludge; Environmental Engineering; Environmental Chemistry; Chemistry (all); Pollution; Public Health, Environmental and Occupational Health; Health, Toxicology and Mutagenesis; General Medicine; General Chemistry
Abstract :
[en] The fate of glyphosate and its metabolite AminoMethylPhosponic acid (AMPA) was followed at the catchment of the Sûre river, mainly characterized by small population density and small and medium-sized wastewater treatment plants (WWTPs). A high concentration of AMPA was found in water samples collected in inlet from different wastewater streams, the industry being the main contributor, while glyphosate resulted mainly in domestic origin. The two molecules were also monitored in the anaerobic digestion as in the supernatant produced after centrifugation (reject water). A total of 0.0713 and 2.24 g/d of glyphosate and AMPA respectively were regularly returned to the activated sludge tank (AST) indicating a 20% impact of the sludge management line on the global wastewater mass balance. Finally, the use of Constructed Wetlands (CWs) in Vertical Flow (VF) configuration was tested as a suitable technology to retain both glyphosate and AMPA (90 and up to 50% elimination respectively) and minimize their discharge into surface water.
Name of the research project :
R-AGR-3132 - EmiSure - part UL (01/01/2017 - 31/12/2020) - HANSEN Joachim
Funding text :
The presented outcomes are part of the European EmiSûre project (n 013-2-03-049) (Développement de stratégies visant à réduire l'introduction de micro-polluants dans les cours d'eau de la zone transfrontalière germano-luxembourgeoise), which is founded by the EU INTERREG VA program. The authors are especially thankfull to: the Administration de la Gestion de l'Eau (AGE) allocated at the Ministère de l'Intérieur et de l'Aménagement du Territoire in Luxembourg and Ministerium für Umwelt, Landwirtschaft, Ernährung,Weinbau und Forsten in Rheinland-Pfalz in Germany.
Scopus citations®
without self-citations
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