Hazardous or toxic waste destruction or containment – Destruction or containment of radioactive waste – Surrounding with specified material or structure
Patent
1993-02-08
1994-08-16
Walsh, Donald P.
Hazardous or toxic waste destruction or containment
Destruction or containment of radioactive waste
Surrounding with specified material or structure
405128, 588 17, G21F 900
Patent
active
053384938
ABSTRACT:
In a method for the safe disposal of radioactive waste, a drilling rig is used to drill a hole or holes near the scource of the radioactive waste. This hole(s) then becomes the deposit chamber(s) for the radioactive waste. After the hole is dug a well casing is cemented in as is done for oil wells. The radioactive waste is put into stainless steel cylinders with a diameter less than that of the well casing, and with a central axial bore hole. These cylinders have screw threads on the top and bottom which allow them to be attached to each other similar to the way pipe sections are attached to one another in oil well drilling. After the cylinders are filled with radioactive waste, they are lowered into the hole using technology common to the oil industry. The cylinders are treated, in effect, as sections of drill pipe. The top of the last cylinder must be a safe distance below the bottom on any existing water table. The bottom cylinder must have a footing which will allow liquid to flow down from the central bore hole and back up between the cylinders and the wall of the well casing. Depending upon the level of radiation in the waste, one can circulate a cooling fluid around the cylinders by pumping the fluid down through the central bore hole and up around the outside of the cylinders. This fluid may be monitored for radioactive levels as appropriate. The final sealing of the hole is accomplished by pumping cement down through the central bore hole and up around the cylinders, displacing the cooling fluid, until the hole is completely filled.
REFERENCES:
patent: 3108439 (1963-10-01), Reynolds et al.
patent: 3335798 (1967-08-01), Querio et al.
patent: 4040480 (1977-08-01), Richards
patent: 4320028 (1982-03-01), Leuchtag
patent: 4708522 (1987-11-01), Bergman et al.
patent: 4776409 (1988-10-01), Manchak, Jr.
patent: 4861194 (1989-08-01), Lang
patent: 4877353 (1989-10-01), Wisotsky, Sr.
patent: 5202522 (1993-04-01), Williams
Mai Ngoclan T.
Walsh Donald P.
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