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US 6,270,823 B1Granted
Method to treat whey
OwnerVeikko Jolkininventor
Life of this patent
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Abstract
A method to treat whey is described wherein whey is fed into a pasteurizing apparatus and then a nano- and/or microfiltration unit wherein the retentate part of the whey is further processed and the permeate part is led to an additional filter and purified with the option of additional sterilizing with UV light.
Claims13
A method for treating whey comprising:
- pasteurizing a separated whey;
- filtering said pasteurized whey in a nanofiltration unit to form a retentate of said whey and a permeate;
- heating said retentate in a heat exchanger;
- centrifuging said retentate, then storing said retentate;
- removing said retentate from storage to an electrodialysis unit wherein said retentate is treated by electrodialysis to produce a whey having reduced salinity;
- purifying said permeate by passing said permeate through a reverse osmosis filter to obtain technically commercially clean water and mixing said technically commercially clean water with condensation water.
3 more elements
Dependencies are inferred from the claim text.