• Corpus ID: 138165649

Solidification of radioactive waste solutions by pelletization technique

@inproceedings{Akbar1980SolidificationOR,
  title={Solidification of radioactive waste solutions by pelletization technique},
  author={Ali Akbar and Rainer Koester and G. Rudolph},
  year={1980},
  url={https://api.semanticscholar.org/CorpusID:138165649}
}

• A. Akbar, R. Koester, G. Rudolph
• Published 1980
• Environmental Science, Engineering, Materials Science

A possible way of performing the cement fixation of radioactive wastes is the incorporation into cement pellets on a pan pelletizer, followed by embedding the pellets into an inactive cement matrix. This procedure is suitable for various types of waste, particularly for medium level liquid wastes, and can be used both at drum disposal and at insitu solidification. This report describes some initial studies on the pelletization technique using a laboratory pelletizer. Formation and size of the… 

A possible way of performing the cement fixation of radioactive wastes is the incorporation into cement pellets on a pan pelletizer, followed by embedding the pellets into an inactive cement matrix. This procedure is suitable for various types of waste, particularly for medium level liquid wastes, and can be used both at drum disposal and at insitu solidification. This report describes some initial studies on the pelletization technique using a laboratory pelletizer. Formation and size of the pellets have been found to be determined by speed, angle, and load of the pan, ratio and mode of addition of the liquid and s~lid components, etc. Pellets in various compositions have been produced from cement and water or simulated waste solution, in some cases with the addition of bentonite for improving cesium retention. Some mechanical properties of the pellets such as fall height of fresh pellets, development of hardness (crush test), impact and abrasion resistance, have been determined. Some preliminary experiments were done on backfilling the void space between the pellets -.about 40 per cent of the bulk volume with cement grouts of appropriate compositions. Verfestigung radioaktiver Abfallösungendurch Pel.letierung