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.

Abstract: An improved disposable emesis container comprising a bag with its upper end enclosing the wide bottom of a funnel formed of paperboard-like material. The containers are mass-produced in a flattened collapsed condition. In use the funnel is squeezed open and after use generally elliptical complementary panels formed on the upper end of the funnel are folded over on each other to provide a self-retaining closure. The lower end of the funnel has downwardly arcuate score lines in the opposite sides which upon being pressed together following formation of the self-retaining closure, act in cooperation with the closure to close together the opposing bottom edges of the wide bottom of the funnel thereby providing a closed valve within the upper end of the bag so as to retain contents of the bag therein.