Case study - Oxygen removal

Initial situation

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
  • Simple operation
  • Suitable for CIP

Practical experience

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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Representation of the oxygen removal in this case example


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