Bio-mechanical removing of contaminated soils : A field experiment
As part of the RESSAC programme on possible countermeasures to be taken following a nuclear accident, the biomechanical removal of contaminated soil has been considered. First the area would be seeded by helicopter with a mixture of turfing plant seeds, peat, polysaccharides, fertilisers and water. The migration rate of radioactive particles through the soil from the surface is fairly slow so that the grass can be left to grow for about a year, and the majority of the contaminated particles will be trapped in the dense root network of the grass. The turf, together with the top 1-2 cm of soil, can then be removed mechanically by a turf cutting machine and taken away for storage or decontamination. This has the advantage of removing a fairly limited volume of the soil as waste. Moreover the biodegradation of the organic matter in the waste will improve the leaching and chelating of caesium and strontium from the waste pile.
Bibliographic Reference: Paper presented: Waste Management '92, Tucson (US), March 1-5, 1992
Availability: Available from (1) as Paper EN 36687 ORA
Record Number: 199210449 / Last updated on: 1994-12-02
Original language: en
Available languages: en