Patents
The invention is a process of treating ammoniacal nitrogen-laden water with Magnesium hydrogen phosphate, formed in situ by treating Phosphoric acid with Magnesium salt under acidic conditions. The struvite crystal generated thereby is separated to obtain water free from ammoniacal nitrogen. The process ensures the removal of ammoniacal nitrogen to the extent of 96.4%. The process finds application for the removal of ammoniacal nitrogen in the effluent of tanneries, textile industries, pharmaceutical industries, and chemical industries.