Nuclear waste retrievable disposal device, system, and method

1. A method of depositing waste material into a sub-seabed sediment of the ocean floor, comprising:

a. receiving waste material;

b. loading the waste material into a first disposal stage of a penetrator, wherein the penetrator includes the first disposal stage and a second disposal stage removably coupled to the first disposal stage;

c. loading the penetrator onto a disposal vessel;

d. transporting the penetrator to a disposal site;

e. releasing the penetrator from the disposal vessel at the disposal site;

f. penetrating the sub-seabed sediment of the ocean floor with the penetrator; and

g. uncoupling the second disposal stage from the first disposal stage.

2. The method of claim 1 , further comprising the step of deploying an arrestor system coupled to a top portion of the second disposal stage.

3. The method of claim 2 , wherein the penetrator includes:

a. a first disposal stage, having an outer shell disposed about a cavity, the cavity being shaped and sized to receive a waste disposal canister; and

b. a second disposal stage removably coupled to a top end of the first disposal stage by an automatic disengagement device including at least one of exploding bolts, spring loaded latches, or impact triggered magnetic couplings, the second disposal stage having: an outer cylinder, a plurality of second disposal fins disposed along a length of the outer cylinder, and an arrestor system coupled to a top portion of the outer cylinder.

4. The method of claim 3 , further comprising the step of activating a transponder coupled to the penetrator.

5. The method of claim 4 , further comprising the steps of activating a first transponder coupled to the first disposal stage, and activating a second transponder coupled to the second disposal stage and in communication with the first transponder.

6. The method of claim 5 , further comprising the step of providing a radioactive power source to the first transponder and the second transponder.