Waste processing toilet for use in locations having limited utility service
AssigneeSedron Technologies, LLC
InventorsPeter Janicki, Sara VanTassel, Margaret Fujihara, Alexsander Voron, Jonathan Holt, Adam Good, Karl Ellingson
Life of this patent
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Abstract
A waste burning toilet may operate on power generated from burning waste deposited in the toilet without connection to external electricity, a sewer, or water supply. A dryer connected to the toiled dries the waste prior to burning. The waste may be burnt in a firebox that is connected to the dryer. Heat from the firebox may be used to generate electricity that can power the components of the toilet system. The waste may be reduced to sterile ash.
Claims7
A system for processing a household's human waste comprising:
- a receptacle configured to receive human waste;
- a grinder coupled to the receptacle to homogenize the human waste into a wet slurry;
- a preheater including a preheater cold side configured to receive the wet slurry and a preheater hot side configured to receive a hot condensate wherein heat from the preheater hot side passes to the preheater cold side, producing a hot wet slurry output and a cold condensate output;
- a degas unit coupled to the preheater and receiving the hot wet slurry;
- a dryer including a dryer cold side configured to receive a degassed wet slurry from the degas unit and output a slurry vapor and a dried solids, and a dryer hot side configured to receive a pressurized slurry vapor and output a saturated condensate;
- a compressor configured to receive the slurry vapor and output the pressurized slurry vapor;
- and
- a water storage tank configured to receive the cold condensate.
A method of processing human waste comprising:
- collecting and grinding waste within a grinding apparatus to produce a homogenous wet slurry output;
- preheating the homogeneous wet slurry using a previously processed hot condensate to produce a cooled condensate output and a heated wet slurry output;
- degassing the heated wet slurry to remove dissolved gasses;
- evaporating the heated wet slurry output to separate the slurry into a dried solids output and a slurry vapor output;
- compressing the slurry vapor to produce a pressurized slurry vapor;
- and
- heating using the slurry vapor as a heat source for evaporating the heated wet slurry.
Dependencies are inferred from the claim text.