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US 11,566,543 B2Granted
Multi-functional fecal waste and garbage processor and associated methods
AssigneeBill & Melinda Gates Foundation
InventorPeter Janicki
Life of this patent
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Abstract
At least one aspect of the technology provides a self-contained processing facility configured to convert organic, high water-content waste, such as fecal sludge and garbage, into electricity while also generating and collecting potable water.
Claims9
A method of processing wet organic sludge having water and solid fuel material, comprising:
- Directing a flow of the sludge along a fuel path of a fuel dryer assembly, wherein the sludge moves through a heater portion of the fuel dryer assembly;
- boiling the sludge in the fuel dryer assembly with heat from the heater portion and thermally separating the water from the solid fuel material to provide dried fuel;
- condensing in a fresh water condenser assembly steam liberated from the sludge for use as potable water;
- receiving in a dry fuel combustor assembly the dried fuel from the fuel dryer assembly, the dry fuel combustor assembly having a combustor portion and having a boiler configured to receive heat from the combustor portion;
- directing steam from the boiler to a fluid path of a condenser portion of the fuel dryer assembly, wherein the fluid path through the condenser is isolated from the fuel path;
- combusting the dried fuel in the combustor portion to generate heat that boils water in the boiler to generate steam;
- generating electricity with a steam powered generator via the steam received from the boiler, the steam powered generator providing steam to the condenser portion;
- directing the condensed steam from the fresh water condenser assembly through a water treatment system that receives the condensed steam in either vapor phase or liquid phase or both, wherein the condensed steam as liquid water is passed through a purifier and filter to provide the potable water;
- and
- pumping with a water pump a flow of water from the condenser portion of the fuel dryer;
- wherein the flow of water is pumped from a water outlet of the water pump to the boiler;
- wherein the boiler converts a flow of water entering the boiler to a flow of steam to power the steam-powered generator.
9 more elements
Dependencies are inferred from the claim text.