Abstract: Processes for the treatment of solutions used for the decontamination of radioactively contaminated surfaces wherein the solution contains radioactive metal ions and organic complexing agents are described herein. The processes include treating the solutions with a reagent suitable for the destruction of the complexing agent and contains a metal capable of existing in more than one oxidation state, and raising the pH of the resultant solution to a level at which the metal of the reagent precipitates or flocs out of the solution. Processes in which the contaminated solutions are treated with electromagnetic radiation, treated with UV or visible radiation, and treated at an ambient temperature are also described herein.

Abstract: A gripping accessory comprises a body having first and second ends. The first end of the body is connectable to the shaft of a screwdriver at its tip, while the second end of the body is sized to received the head of a screw and has a gripping formation to hold the screw head in place. The portion of the body connected to the shaft of the screwdriver is a spiral.