Disposal of liquid radioactive wastes through wells or shafts

Abstract

This report describes disposal of liquids and, in some cases, suitable solids and/or entrapped gases, through (1) well injection into deep permeable strata, bounded by impermeable layers, (2) grout injection into an impermeable host rock, forming fractures in which the waste solidifies, and (3) slurrying into excavated subsurface cavities. Radioactive materials are presently being disposed of worldwide using all three techniques. However, it would appear that if the techniques were verified as posing minimum hazards to the environment and suitable site-specific host rock were identified, these disposal techniques could be more widely used. • M. E. MacLachlan, "The Anadarko Basin (of parts of Oklahoma, Texas, and Colorado)," US Atomic Energy Commission Trace Elements Inv. report 831, March 1964, 75 pp. /. Clorieta and Ogallala in the Oklahoma Panhandle

Disposal of hazardous elemental wastes

“…Cement grouts monoliths will help support the overalso have a basic pH, which ensures head rock. This technique is somethe formation of hydroxides of very low times used in underground mining of solubility for most metal cations that ores (26).…”

“…Cement is a readily available, low-cost material that, with time, converts from a pumpable liquid state into a strong solid. As a direct consequence, the cost for underground disposal of wastecement-based grout mixtures may be only one-fifth of that for packaged waste disposal (26), while higher safety margins are provided.…”

Identification and Persistence of 5,6-Dihydro-2H-pyran-3-carboxaldehyde in Aged Aqueous Acrolein Media

“…The water temperatures at the end of the crop furrows can be quite warm. In some instances, the release of aged acrolein-depleted water can produce fish kills and can release soluble and insoluble byproducts into other groundwater systems by direct means such as laterals back into flow canals, ponds, lakes, and estuaries or by seepage into underground aquifers. , Studies have shown that there is communication between oilfield waters and water tables. − When used in oilfield waters, a water-soluble byproduct could be feasibly transferred from oil–water reservoirs to groundwater aquifers. Surface batch or subsurface slug treatments of acrolein in oilfield systems also produce high concentrations of acrolein at the injection point, and most systems are hot.…”

Disposal of hazardous elemental wastes

“…With cement-waste disposal, caverns can be spaced so that other caverns can be constructed between them after they are built and filled, since the cement monoliths will help support the overhead rock. This technique is sometimes used in underground mining of ores (26).…”