Abstract: A continuous flow sludge pasteurization system includes a flow chamber having an inlet and an outlet and structure within the liquid flow chamber between the inlet and the outlet defining a continuous path for maintaining a continuous flow of a slurry from the inlet toward the outlet at a predetermined rate for establishing a minimum period of residence time of the slurry within the flow chamber, the residence time sufficient to kill all pathogens in the slurry at a predetermined minimum temperature of between about 145 and 160 degrees F, a pump for introducing a continuous flow of a liquid slurry of sludge into the liquid flow chamber and for establishing and maintaining a continuous flow of a liquid slurry through the liquid flow chamber from the inlet to the outlet at the predetermined rate, and a source of heat for introducing heat into a liquid slurry being introduced into the liquid flow chamber for heating the continuous flow of slurry to the predetermined minimum temperature, and dewatering apparatus

Abstract: A continuous flow sludge pasteurization system including a heat exchanger, a source of heat for introducing into the heat exchanger, an inlet for introducing a liquid slurry of sludge into the heat exchanger for heating the sludge to a predetermined minimum temperature, a circulating circuit for maintaining the slurry in circulation at the predetermined temperature for a minimum period of about thirty minutes, sufficient to kill all pathogens in the slurry prior to dewatering, and a dewatering unit for removing water from the sludge.