Catalytic reduction is a promising new technology for the removal of contaminants from drinking water sources. Pd-based transition metal catalysts have shown the ability to reduce a number of contaminants of concern when H2 is added to the solution. These contaminants include anions like nitrate (NO_3~-), nitroso compounds like NDMA and a range of halogenated organics. Unlike current treatment methods (i.e., ion exchange, GAC and reverse osmosis) catalytic reduction is destructive, thus it produces no secondary waste streams. Although many studies have documented the broad range of contaminants that can be destroyed by Pd-based catalysts1-8, only a few studies have looked at the long-term sustainability of these systems in the presence of known catalyst foulants.
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