Ultrafiltration radionuclides removal

Colloids are found in many systems, e.g. in natural waters and in the air. Traces of colloids formed by dust particles or by particles given olf from the walls of containers are practically omnipresent. They can only be removed by careful ultrafiltration. If a radionuclide or a labelled compound enters such a system, there is a high probability that it will be sorbed on the colloids, provided that the competition of other ions or molecules is not too strong. Only if the presence of colloids from other origins can be excluded and if the solubilities of relevant species are not exceeded, formation of radiocolloids by microamounts of radionuclides can be neglected. 

Removal of Radionuclides from Water Solutions by Ultrafiltration/Complexation.858... 

Montana, M., Camacho, A., Serrano, I., Devesa, R., Matia, L. Valles, 1. (2013) Removal of radionuclides in drinking water by membrane treatment using ultrafiltration, reverse osmosis and electrodialysis reversaL Journal of Environmental Radioactivity, 125 (1), 86-92. 

Figure 6.18. Treatment layouts for the four scenarios studied in a pilot plant for removing radionuclides from drinking water. Sampling points are represented by numbers in brackets (Montana et al., 2013). Code ultrafiltration (UF), reverse osmosis (ROX electrodialysis reversal (EDR).

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