Decaying and Decontamination Plant System

When thyroid disease are treated with radio iodine (131J) in the nuclear medical department of hospitals, a large quantity of radioactive isotopes is deposited. The radioactive waste water may not be discharged into the public sewer, but must be stored until the radioactivity has decayed below the legally defined value.

Due to the long retention time of the waste water in the decay tank, an anaerobe process must be prevented to avoid bio-gas generation. And anaerobic process take place when the waste water is periodically aerated. Consequently, the hospital can abandon the neutralisation that was formerly used in decay plants

  • Through the decaying and decontamination plants system which is a modern central process control system including visualisation process able to regulate the plant and guarantees a high safety standard. This system is individually designed according to the requirements of the respective hospital and using double wall steel tanks for installation underground or vessels installed in (cellar) rooms which may be specified by the hospital.
  • The size and number of decay plants is determined mainly by the daily water volume. The use of vacuum toilets able to reduce the daily water discharge into the recipient tanks by 50% and the total investment costs decrease consequently to 30%.