Abstract: A method for removing trace amounts of ammonia and ammonia-containing compounds from process water involving the destruction of the ammonia by oxidative procedures which includes the steps of:concentrating ammonia and ammonium ions removed from the process water stream into contact with a suitable catalytic-adsorbent material contained in a plurality of discrete reaction vessels; andcontacting at least one of the reaction vessels and the catalytic-adsorbent contained therein with an alkaline oxidative solution capable of converting the concentrated ammonia and ammonium ions to simple environmentally neutral compounds.