Patent ID: 6931860

Claim:
A system producing power and pasteurized wastewater, comprising: a turbine configured to receive a flow of a working fluid, the working fluid flow rotating blades and an output shaft of the turbine; a power generator coupled to the turbine output shaft and configured to convert rotation of the output shaft into power; a source of wastewater; a heat exchanger having first and second internal chambers that are fluidly separate from one another inside the heat exchanger, the first chamber configured to receive the working fluid exiting the turbine, the second chamber configured to receive wastewater from the source of wastewater, the chambers configured to permit heat exchange between the working fluid within the first chamber and the wastewater within the second chamber to raise the temperature of the wastewater in the second chamber to a wastewater pasteurization temperature; and a heat source operatively connected to impart heat to the working fluid flowing through the turbine and the first chamber of the heat exchanger.