At Oslo Airport, the most environmentally friendly fluid available on the market is currently used. It is not classified as an environmental toxin. The additives in the fluid make up < 1% and are also not toxic to the environment around the airport with the quantities used. De-icing is done on days during the winter season when it snows, there is freezing rain, or frost sticks to the planes.
What are de-icing chemicals made of?
At Oslo Airport, a mixture of hot water and glycol is used as de-icing chemicals. In addition to glycol, the fluid also contains additives. This is to give the fluid the right property so that the requirements for flight safety are met.
The mixing ratio depends on the air temperature. On days when the temperature is around zero, mainly hot water is used, and on days when there are low temperatures, a larger proportion of glycol is used.
How does the de-icing process take place?
The de-icing process takes place on three de-icing platforms depending on which runway and which direction the planes will take off. On all de-icing platforms, as well as along the taxiways and at the very beginning of the runways, there are collection systems that collect runoff water and de-icing chemicals. All chemicals that fall off the planes within this area are collected and handled in different ways. At Oslo Airport, approximately 80% of the de-icing chemicals used are collected.