Method for controlling the integrity of a nanofiltration or reverse osmosis module, or module system
US7216529B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 1, 2001 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | Jan 12, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/086
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns a method for controlling a nanofiltration or reverse osmosis module system designed for treating a supply fluid or for detecting living micro-organism leaks, each module comprising nanofiltration or reverse osmosis membranes and joints connecting said membranes, including steps which consist in: selecting in the supply fluid a dissolved compound present in significant amount but normally highly retained by the membranes; measuring the concentration value of said compound in a downstream zone of a module of said system; comparing said measured value with a reference value; and recognising the existence of a fault in said zone of the system when said measured value is higher than the reference value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.