Nitrate reduction by mixed iron(II-III) hydroxycarbonate green rust in the presence of phosphate anions: The key parameters influencing the ammonium selectivity

The selective reduction of nitrate in water is achieved by using green rust in the presence of a moderate amount of phosphate. This study can be used as a guide for designing future experiments in hydrodynamic conditions where complementary dephosphatation and/or elimination of residual ammonium should be considered.147