Cleaning method of membrane filtration system and membrane filtration system
US12357949B2 · kind B2 · utility
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Key dates
| Filing date | Oct 6, 2020 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | May 6, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/131
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cleaning method of a membrane filtration system in which a plurality of modules including an inlet side region and an outlet side region separated by a filtration membrane are connected in parallel by a common blow header pipe in the inlet side region, the method including backwashing and blowing in which after the backwashing is started, gas is introduced into the plurality of modules through a blow header pipe. The method further includes forming, before the blowing is started, a gas layer across an entire longitudinal direction of the blow header pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.