Patent ID: 6491820
Filing Date: 2002-12-10
Classification: C02F,Y02W

Abstract:
A method of treating waste-activated sludge contained in waste sludge, paper-pulp sludge, municipal waste sludge, animal or plant waste sludge, containing intra-cellular water molecules contained in molecular cellular units of the waste sludge, comprising:(a) pumping the waste sludge into a dewatering apparatus for separating waste-activated sludge therefrom; (b) directing the waste-activated sludge to an electroporating station; (c) electroporating the waste-activated sludge for destroying at least most of the individual cellular units of the waste-activated sludge in order to release the intra-cellular water molecules contained therein; and said step (c) causing massive disruption of the cellular matter, allowing for the release of bound as well as intra-cellular liquids and intracellular dissolved/organic matter; and (d) directing the released intracellular dissolved/organic matter to an aeration tank for supplying food to bacteria of said aeration tank for performing aerobic digestion thereon whereby the intracellular, dissolved organic matter is used as food for the bacteria of the aeration tank, whereby the aerobic digestion process is accelerated thereby for the same amount of supplied oxygen.