Performance of a constructed wetland in Grand Marais, Manitoba, Canada: Removal of nutrients, pharmaceuticals, and antibiotic resistance genes from municipal wastewater

The overall objectives of this study were to characterize the presence of nutrients and emerging wastewater contaminants (pharmaceuticals, personal care products and antibiotic resistent genes) in the Grand Marais system and to evaluate the effectiveness of treatment wetlands in removal of these contaminants. It was hypothesized that the use of a treatment wetland would enhance degradation and elimination of these target compounds, and therefore, could be an option to complement the current lagoon wastewater treatment system in communities that rely on lagoon treatment alone. The results of this study indicate that while the treatment wetland may effectively attenuate an excess of nutrients and remove some micropollutants. it does not specifically target antibiotic resistant genes for removal.

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