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Abstract

After a nuclear accident the removal of radiocaesium and radiostrontium from contaminated soils and plants generally leads to the production of huge quantities of waste. Certain countermeasure techniques studied within the RESSAC programme are aimed at restoring the environment with minimal waste production. In particular, they aim to remove only the most contaminated part of the environment, the soil surface or the tree leaves. The decontaminating vegetal network D.V.N. mechanically removes less than 1 cm of soil, facilitated by the deliberate sowing of seeds to produce a turf with a substantial binding root-network. An organic polymer gel has also been tested for removing a soil layer of only a few millimetres thickness by mechanical brushing. Initial results from testing of these techniques are promising. Recently, the possible use of non-lethal defoliation of trees has been tested to minimise foliar absorption and translocation leading to contamination of wood.

Additional information

Authors: JOUVE A, CEA, Institut de Protection et de Sûreté Nucléaire, CEN Cadarache, Saint-Paul-lez-Durance (FR);BON P, CEA, Institut de Protection et de Sûreté Nucléaire, CEN Cadarache, Saint-Paul-lez-Durance (FR);CARDOT A L, CEA, Institut de Protection et de Sûreté Nucléaire, CEN Cadarache, Saint-Paul-lez-Durance (FR);SCHULTE E, CEC Bruxelles (BE)
Bibliographic Reference: Paper presented: REACT, Bruxelles (BE), October 1-4, 1991
Availability: Available from (1) as Paper EN 36689 ORA
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