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US 12,552,697 B1Granted
Method of separating waste into bio-available components
OwnerKirk Shiner, Justin Spaeth +1inventors
InventorsKirk Shiner, Justin Spaeth, Seth Peters
Life of this patent
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Abstract
Method and system of processing DAF float and other waste streams containing oils, solids and liquid in order to remove them from the waste cycle to be put back into beneficial use.
Claims26
A multi-stage process for separating a waste stream containing oils, solids and liquids, the steps comprising:
- providing a waste stream in the form of DAF float comprising unrefined oils, solids and liquids;
- magnetically filtering said DAF float for removal of metal solids;
- hydrothermally fractionating said DAF float within a heat tank;
- transferring and heating said DAF float;
- separating oil phase, solids phase and liquid phase with a separation member;
- recovering and transferring said liquid phase containing predominantly water to a stickwater transfer tank;
- exposing said liquid phase to a thermal exchange;
- binding proteins within said liquid phase with a chemical agent;
- pressing said liquid phase from suspended solids with a screw press;
- and
- recovering and transferring filtered liquid to a filtrate tank for transfer to a treatment plant or polishing DAF.
8 more elements
A method of separating oils, solids and liquids from a waste stream, the method comprising:
- providing a waste stream in the form of DAF float comprising unrefined oils, solids and liquids;
- magnetically filtering said DAF float for removal of metal solids;
- hydrothermally fractionating said DAF float within a heat tank;
- holding said DAF float at a set temperature for a set period of time within said heat tank;
- transferring said DAF float to a steam injection heater;
- heating said DAF float within a range of 190° F. and 210° F.;
- transferring said DAF float to a mechanical separator;
- decanting said DAF float into a solid phase, an oil phase and a stickwater phase;
- recovering and transferring said oil phase to a transfer tank;
- recovering and transferring said solids phase to a load carrier;
- recovering and transferring said stickwater phase containing predominantly water to a stickwater transfer tank;
- cooling said stickwater phase with a thermal exchanger;
- adjusting pH of said stickwater phase and transferring said stickwater phase to an equilibrium tank;
- pressing said stickwater phase with a screw press for separation of a second liquid phase and a second solid phase;
- and
- recovering and transferring filtered liquid to a filtrate tank for transfer to a treatment plant.
13 more elements
A method of extracting liquids, oils and solids from DAF float whereby the DAF float has been processed through a mechanical separator, the steps comprising:
- recovering and transferring a refined oil phase to a transfer tank;
- recovering and transferring refined solids to a load carrier;
- recovering and transferring a refined stickwater phase to a stickwater transfer tank;
- transferring the stickwater phase to an equilibrium tank;
- adjusting the pH of the stickwater phase;
- binding proteins within said stickwater phase with a chemical agent;
- pressing the stickwater phase with a screw press;
- and
- recovering and transferring filtered liquid to a filtrate tank for transfer to a treatment plant.
6 more elements
Dependencies are inferred from the claim text.