Membrane cleaning solution and method of accelerated membrane cleaning using the same
US11529588B2 · kind B2 · utility
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36References
21Claims
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Key dates
| Filing date | Jun 29, 2018 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Jun 29, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/168
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cleaning solution for accelerated cleaning of a membrane having an enzyme and an agent having a pH that is compatible with the enzyme. The cleaning solution may additionally include one or both of a binding agent and a surfactant. Once the cleaning solution has been included in a solution that is used to contact the membrane for a defined period of time, one or both of a binding agent and a reducing agent may be added to the solution that has contacted the membrane. Optionally, one or both of increasing a pH of the solution and increasing a temperature of the solution may be used to reduce an activity of the enzyme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.