The nuclear industry produces a radioactive sludge. In the ion exhange process a radioactive sludge is recieved as nuclear particles are trapped inside and forms a sludge like waste that must be taken care of.



With Freeze Dry Unit in the process the results are:

  • Reduced transports
  • Less volume for final storage
  • Option to recycle reject water

The process with and without the Freeze Dry Unit

The process with and without the Freeze Dry Unit

The nuclear power plant produces energy


From the plant a residue is obtained in the form of an unorganic sludge called ion exchange mass that is used to filter nuclides from water. The mass is made out of small golf ball like beads.


The sludge is dewatered and dried with Freeze Dry Unit


The sludge is transported to long time storage. As there are still a lot of water remaining the volume is large and requires many transports.


Water and unorganic material has been separated. The water is particle free and can be resued in the system. The now dry but radioactive beads can effectively be transported to long time storage.


The sludge is long timed stored but takes a lot of plasce because of the still high water content.


Long time storage for dry sludge requires less storage space.

This is how Freeze Dry Unit makes a difference in nuclear energy industry

Freeze Dry Unit has not yet been tested on sludge from nuclear applications. The process of freezing and drying is although suited to dewater and dry sludge containing nuclear particles. Freeze Dry Unit can therefore be a solution to separate the water from the sludge and receive a dry sludge and a water, free from nuclear particles. This can, for example, be used in the many decommissioning projects that are taking place around the world.


There are also cases where nuclear polluted soil and dredging waste has been stored in tanks. Freeze Dry Unit would be very suited to treat this kind of sludge.


As the radioactive sludge have to be long-time stored, the volume that have to be stored away is decreased, as is the volume that have to be transported.