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AssigneeThe Procter & Gamble Company
InventorsMarcello Somma, Giorgio Vaccaro, Giorgio Pignalosa, Nicola D'Alessio, Tonino Caruso, Laura Palombi
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A method for sterilizing and decontaminating post-consumer absorbent products polluted with organic compounds derived from human metabolism including drug residues, the post-consumer absorbent sanitary products comprising fractions of plastic, super-absorbent polymers (SAP), and optionally cellulose, the method including at least the steps of: sterilizing (SR) the absorbent sanitary post-consumer products by heating to a temperature equal to or less than 140° C., and to a pressure lower than 4 bar, decontaminating (DC) the post-consumer absorbent sanitary products of organic compounds by treating with an oxidizing composition comprising at least one compound selected from the group consisting of hydrogen peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, potassium monopersulfate, ammonium persulfate, sodium persulfate, potassium persulfate, and ozone. The at least one compound is contained in the oxidizing composition in an amount equal to or greater than 2% by weight with respect to the dry weight of the post-consumer absorbent sanitary products.
A method for sterilizing and decontaminating post-consumer absorbent sanitary products polluted with organic compounds derived from human metabolism comprising drug residues, said post-consumer absorbent sanitary products containing one or more fractions of plastic, super-absorbent polymers (SAP), and cellulose, the method comprising at least the steps of:
Dependencies are inferred from the claim text.