Derox - Water Deaerator
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Oxygen is vital for life on earth, fuelling processes in daily life such as the metabolism of food. It is a requirement for the existence of mankind. However reactions with oxygen also cause degradation.One of these reactions, which should be avoided is the degradation of vitamin C. 1 mg of oxygen reacts with 11 mg vitamin C. If the dissolved oxygen in water is 9 mg/l, 1litreof water will destroy 99 mg of vitamin C! Another negative effect is the oxidation of both orange and apple juices, giving a brown coloring. For juice the normal acceptable O2 content is 0.5 - 1.0 mg/l. |
The APV Derox is a two-stage deaerator operating at ambient temperatures. Water is sprayed into a horizontal tank under vacuum. This is then circulated into a second horizontal tank and a small amount of stripping gas (either CO2 or N2) is added. The normal residual O2 level for this unit is 0.03 mg/l and values as low as 0.004 mg/l have been obtained. The standard capacity range spans 5,000 - 70,000 l/h but units over 100 m3/h have been supplied.
