Dry Ice

In the next stage of the decommissioning process “Dry Ice” was introduced down into each of the storage tanks. This was then left for a period of eight hours to let the Dry Ice turn back into its gaseous form of carbon dioxide. As the tank is filled with CO2 the remaining petrol vapours are forced out of the tank and up the vent pipe. After this has been carried out it is then safe for the manlids to be removed from the tanks making them ready for the next stage.