Potato wastewater treatment method
AssigneeBasic American, Inc.
InventorsLarry S. Ferro, Stephen C. O'Brien, Henry J. Camin, Bruce M. Wright
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Abstract
A method for treating potato wastewater comprising the steps of pretreating a potato wastewater stream including suspended and dissolved solids with an alpha amylase enzyme to hydrolyze starch in the wastewater, ultra-filtering the enzyme-treated wastewater from step (a) to filter and remove a portion of the suspended solids in a first concentrate stream separated from the wastewater, and reverse osmosis-filtering the ultra-filtered wastewater from step (b) to remove at least about 70% of the wastewater dissolved and suspended solids in a second concentrate stream.
Claims1
A method for treating potato wastewater comprising the steps of
- (a) pretreating a potato wastewater stream including suspended and dissolved solids with an alpha amylase enzyme to hydrolyze starch in the wastewater,
- (b) ultra-filtering the enzyme-treated wastewater from step (a) to filter and remove a portion of the suspended solids in a first concentrate stream separated from the wastewater,
- (c) reverse osmosis-filtering the ultra-filtered wastewater from step (b) to remove at least about 70% of the wastewater dissolved and suspended solids in a second concentrate stream, and
- (d) further concentrating the second concentrate stream by evaporation.
Dependencies are inferred from the claim text.