Potato wastewater treatment method
US6555003B2 · kind B2 · utility
6Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Feb 5, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.