The pilot is owned by:
THE AIM OF THE PILOT PROJECT
Stavanger Airport Sola uses, and many other airports do the same, chemicals for the de-icing of aircraft and the runway. The de-icing chemicals are mainly comprised of glycol and formate. Surface water on the runway carries the de-icing chemicals in to the stormwater system. Surface water from the northern part of the runway is sent directly into Hafrsfjord, which is a fjord with a threshold. The de-icing chemicals are organic compounds that break down biologically, but they give a high oxygen demand. A large amount of emissions will therefore be unfortunate in a fjord with a threshold that has a limited exchange of water. Avinor has a permit to discharge de-icing fluid into the wastewater system, the limit is 70 cubic meters. Based on recipient assessments, the airport has its own defined limit as to how much de-icing fluid may be released into Hafrsfjord. However, Avinor considers that it is appropriate to take measures to improve the situation. The airport has sent a new emissions application to the Rogaland County Governor, and a reduction is expected in relation to drainage into Hafrsfjord.
The aim of the pilot project is to find good methods for measuring the concentration of de-icing chemicals in water, to develop solutions for cleaning the runway, and to document the treatment effect, operation and maintenance of the solutions implemented.
The innovation potential lies in the development and testing of new solutions for the management of stormwater that may contain de-icing chemicals, focusing on the following elements:
- Method (s) for the real-time detection and monitoring of the concentration of de-icing chemicals in stormwater
- Solution (s) for the collection and infiltration of stormwater along the runway
- Solution (s) for treating stormwater when a high concentration of de-icing chemicals is discovered
- Description of the pilot project in Norwegian
- Raspati, G.S, Lindseth, H.K.H, Muthanna, T.M & Azrague, K: Potential of Biofilters for Treatment of De-Icing Chemicals. Water 2018, Vol. 10(5), p. 620;