Derouging - A process specific to the pharmaceutical industry
The localised electrochemical effects generated by the production of ultrapure water leads to the formation of labile ferric oxides, which then circulate within installations.
Rouging is a phenomenon that requires the implementation of specific curative treatments geared towards eliminating oxides that are redeposited on the top layer of polished or electropolished surfaces :
- Boilers use in the production of pure steam
- Distribution of hot purified water/water for injectable preparations, pipe networks, vats
- Process units, fermenters, freeze-driers