For the new construction of a brewery, a system for the removal of oxygen should be installed as part of the overall water treatment. General selection criteria were:
Residual oxygen content <10 ppb
Low cost of ownership
Low investment costs
Robust and reliable system
The EUWA solution
The brewery decided to use an EROX® membrane system whose characteristic benefits completely meet the selection criteria:
O2 content <10 ppb reliably achievable
Low stripping gas consumption
No heating of the water necessary
Approx. 20% lower investment costs than comparabl e systems
Suitable for CIP
In practical use, the following key performance figures are reproducibly achieved:
Performance: 500 hL/h O2 content in the feed: about 8000 ppb
O2 content in the outlet: <10 ppb
Stripping gas consumption (CO 2 ): 20 g/hL
Vacuum: 50 mm Hg
Water Chemical background
Every natural water contains oxygen, usually up to the saturation limit between 8-10 ppm. However, various process steps of the beverage production require water with minimal oxygen content. Qualitative disadvantages such as a lower shelf life or the oxidation of sensitive ingredients are avoided in this way.
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