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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, 1 litre of water will destroy 99 mg of vitamin C! Another negative effect is the oxidation of both orange and apple juices, giving a brown colouring. For juice the normal acceptable O2 content is 0.5 - 1.0 mg/l. The APV Parasol VFJ deaerator is intended for product deaeration. During product processing there are many possibilities of entraining air during such actions as pumping, mixing and tank filling. |
The operating principle of the APV Parasol VFJ is vacuum stripping. The adjustable product inlet is specially designed to ensure a thin falling film in a conical or "parasol " shape. This gives a large surface area and maximises the deaeration efficiency. The standard capacity range spans 1,000 - 35,000 l/h.
