How do you dispose cobalt 60?

Answer 1

Low level radioactive wastes containing cobalt-60 must be kept totally isolated from the environment for approximately 100 years, to allow them to effectively fully decay to nonradioactive products.

One way of doing this would be to:

1. if the waste is not already completely solid, convert it to solid form
2. cast the solid low level radioactive waste inside concrete cylinders
3. in an approved hazmat disposal site, pour a concrete pad inside a well built waste storage building
4. place the concrete cylinders containing the low level radioactive waste on this concrete pad
5. cover the concrete cylinders with layers of different materials to prevent the flow of rainwater through the wastes