Komplexe Anlage, Rohre, Ventile, Zuckerlöser - Effiziente Herstellung homogener Zuckerlösungen, Hintergrund weiß, Centec GmbH.

DGS - Membrane water deaeration

DGS is a membrane-based water deaeration system designed to achieve exceptionally low residual oxygen values. The system is based on highly efficient membrane modules, each containing thousands of hydrophobic, gas-permeable hollow-fiber membranes. This creates a very large internal surface area, maximizing the exchange area and contact time between water and gas.

While the strip gas (CO₂ or N₂) is applied on the inside of the hollow fibers, the water flows in countercurrent on the outside. The large partial pressure difference of O₂ drives the oxygen out of the water through the gas-permeable membranes. Inside the membranes, the oxygen is removed together with the strip gas. This fundamental physical principle is described by Henry’s law.

The DGS system requires only a minimum of energy and strip gas.

Application

Dissolved oxygen has negative effects on flavor stability and shelf life. The DGS deaeration system removes O₂ from water used in the production of:

beer
beer-mix beverages

The system is compact and easy to expand.

System Design & Function

Thanks to its modular design, the system can be easily adapted to the required:

capacity by arranging membranes in parallel
residual oxygen level by arranging membranes in series

The O₂ content of the deaerated water is continuously monitored. For this purpose, the system is equipped with a highly accurate optical OXYTRANS sensor for process control.

The nearly oxygen-free water can optionally be: