By way of gas2.0
When crops are planted in radioactive soil, near Chernobyl for example, the plants soak up radioactive material in the roots and stems. With traditional farming, the unused parts of the plant are plowed back into the soil, and the radioactive materials persist. When biofuels are planted, the same biological processes apply, but the plants are distilled. Distillation allows non-radioactive material to be separated and safely used, and the remaining concentrated material can be disposed of. This could dramatically increase the cleanup rate for radioactive soils.
