Abstract: A method is provided of hydrogen peroxide sterilization of medical articles whereby there are obtained the advantages of both vapor penetration, especially for such articles as surgical packs, and direct liquid-sterilant article contact, in which a vapor mixture comprising hydrogen peroxide is brought into contact with the article to be sterilized, the article being at a temperature below the dew point or condensation temperature of the vapor mixture, is caused thus to condense as a liquid film on the article, and is revaporized and hence removed from the so-sterilized article.

Abstract: A predetermined amount of hydrogen peroxide is added to an aqueous waste eam containing organic pollutants, the mixture thoroughly mixed and the resultant mixture irradiated with ultraviolet light. The irradiation by ultraviolet light facilitates the breakdown of the hydrogen peroxide into hydroxyl radicals which are capable of oxidizing virtually any refractory organic compound, thereby reducing the chemical oxygen demand of an aqueous waste stream.