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The residues of magnesium ammonium phosphate (MAP) decomposed by heating under alkali conditions were repeatedly used as the sources of phosphate and magnesium for the removal of high ammonium concentration from landfill leachate. Up to 96% of ammonium in MAP powder could be released under the following conditions: NH4+:OH − molar ratio, 1:1; temperature, 90°C; heating time, 2h. Fourier transform...
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