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US 11,065,581 B2Granted
Separation systems for removing starch and other usable by-products from processing waste water
AssigneeSmartflow Technologies, Inc.
InventorsJason Bell, Mark Vander Hoff, Todd Benson, Marc Pugh, Joseph Peters
Life of this patent
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Abstract
The present invention provides for a method for separating starch from processing solutions containing starch containing plants or roots such as potatoes, sweet potatoes, wheat, corn, tapioca, yams, cassaya, sago, rice, pea, broad bean, horse bean, sorghum, konjac, rye, buckwheat and barley to provide commercially acceptable starch while reducing disposal of solid or liquid waste matter into landfills or water treatment facilities.
Claims12
A method for dewatering starch milk, the method comprising:
- moving a liquid-type medium comprising starch milk from a vessel comprising same into at least one cross-flow filtration cassette, wherein the liquid-type medium is separated into a retentate stream comprising dewatered starch and a permeate stream comprising water,
- wherein the liquid-type medium is a viscous liquid, a non-viscous liquid, a suspension or an emulsion;
- wherein the at least one cross-flow filtration cassette comprises an array of sheet members of generally rectangular and generally planar shape with main top and bottom surfaces, wherein the array of sheet members include, in sequence, a first retentate sheet, a first filter sheet, a permeate sheet, a second filter sheet, and a second retentate sheet, wherein a pore size of the first and second filter sheets is less than a particle size of starch such that the starch is retained in the retentate stream, and water diffuses through the first and second filter sheets to enter the permeate stream;
- and
- wherein the dewatered starch has a water content of less than 50% residual moisture.
2 more elements
Dependencies are inferred from the claim text.