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7360967 |
Solubilization and disposal of radioactive scale and sludge
A process to transform solid, low-level, radioactive waste produced from oil and gas production into a form that may be safely disposed of, such as by re-injection into geologic formations in the...
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6846967 |
Nuclear waste disposal system
A system for disposing of nuclear waste which essentially includes filling containers with nuclear waste and then dropping the containers into the sea in the path of an undersea volcano which is...
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6458271 |
Deep aquifer remediation system
A groundwater decontamination system includes a decontamination unit adapted to be lowered down through a non-pumping well into an aquifer containing contaminated water. The unit can also be raised...
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6428695 |
Aquifer remediation barrier for removal of inorganic contaminants
A permeable barrier for decontaminating groundwater having two distinct components for increasing contaminant removal. Preferably, the barrier material is a mixture or distinct layers of bone-char...
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6322693 |
Waste processing system and related methods
A waste processing system comprising a mixing tank system with an agitation system; a separation system, and a slurry tank system having a shearing system. The present invention also relates to a...
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6238138 |
Method for temporary or permanent disposal of nuclear waste using multilateral and horizontal boreholes in deep islolated geologic basins
A method of disposing nuclear waste in underground rock formations (18). The method includes the steps of selecting an land area having a rock formation (18) positioned therebelow of a depth able...
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6204429 |
Methods of remediation of chemical contaminants dispersed in geologic media
Chemically contaminated soil samples are subjected to a shock wave sufficient in amplitude and duration to induce polymerization and/or decomposition of the contaminant chemicals.
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6002063 |
Apparatus and method for subterranean injection of slurried wastes
Injection of slurried wastes is carried out within deeply buried strata. Appropriate target strata are identified in terms of sufficient porosity and permeability, and overburden that includes...
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5863283 |
System and process for disposing of nuclear and other hazardous wastes in boreholes
A system for disposing of hazardous waste, such as nuclear waste, underground which provides the drilling of a wellbore down into a level of a underground bed of salt, for example, and forming a...
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5850614 |
Method of disposing of nuclear waste in underground rock formations
A method of disposing nuclear waste in underground rock formations (18). The method includes the steps of selecting an area of land having a rock formation (18) positioned therebelow, the rock...
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5833395 |
Method for reducing the concentration of contaminating radioactive material in contaminated soil
A method for reducing the concentration of radioactive material in a contaminated area by removing contaminated soil from the contaminated area; determining a field survey specific activity...
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5832392 |
Depleted uranium as a backfill for nuclear fuel waste package
A method for packaging spent nuclear fuel for long-term disposal in a geological repository. At least one spent nuclear fuel assembly is first placed in an unsealed waste package and a depleted...
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5763735 |
Monitored retrievable storage of plutonium and nuclear toxic waste
A method of removing radioactivity from the interior of a building by transporting radioactive material within a slurry comprising water and metal salt hydrate, precipitating out or otherwise...
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5762675 |
Method relating to the preparation of amorphous samples and means therefor
A method of producing amorphous sample bodies that can be used for optical spectral analysis and X-ray spectral analysis, by batch-wise smelting in a crucible a mixture of analysis sample and a...
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5740546 |
Repository for radioactive waste-vault backfill
A method of forming a repository for radioactive waste comprises locating the waste in a subterranean vault and backfilling the vault with a filling material which is water permeable and provides a...
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5678235 |
Safe ceramic encapsulation of hazardous waste with specific shale material
A safely encapsulated hazardous waste product free of unwanted leaching of contaminated metal constitutents and process therefor wherein a quantity of hazardous waste and a quantity of shale...
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5613242 |
Method and system for disposing of radioactive solid waste
This invention discloses a system and method for the disposal of solid waste that contains radioactive material. Radioactive solid wastes generated as scales during oil and gas production...
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5489735 |
Decontamination composition for removing norms and method utilizing the same
A decontamination composition comprises 40 to 60 percent of a compound selected from the group consisting of oxalic acid, alkali metal and ammonium salts of oxalic acid and mixtures thereof; 5 to...
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5464473 |
Backfill for engineered barrier
A backfill for an engineered barrier used to contain radioactive waste has a predetermined amount of clayic material and a predetermined amount of a reinforcement material with hydrophobic surface...
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5413718 |
Use of added water to achieve 100% injection weight in geothermal operations
Geothermal brines are extracted from the earth, flashed and the remaining liquids are injected back into the earth. Although it would be advantageous for resource maintenance to inject the same...
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5409614 |
Control of scale deposition in geothermal operations
NORMs are inhibited or prevented from precipitating with scale produced by a hot aqueous solution by adding multiple portions of a crystal structure modifier to the aqueous solution as it cools...
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5338493 |
Method for disposal of radioactive waste
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)...
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5332532 |
Method for disposing of radioactively labeled animal carcasses
A method for disposing of animal tissue containing radioactive materials by producing a solution containing a substantially de minimis concentration of radioactive materials through alkaline...
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5202522 |
Deep well storage of radioactive material
Radioactive waste is mixed with concrete and stored below any potable aquifers in a well casing traversing a stable geological hydrocarbon-containing formation. Salt water and/or hydrocarbon zones...
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5198128 |
Waste disposal site, in particular for the ultimate disposal of radioactive substances
A waste disposal site, such as an ultimate disposal site for radioactive substances, includes installed waste having hollow spaces remaining therebetween. Packing material fills the remaining...
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5171483 |
Method for retrievable/permanent storage of hazardous waste materials
A method for the long term storage of radioactive hazardous waste in a hollowed out chamber of salt bed in which sealed, relatively incompressible containers of hazardous materials are immobilized...
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4981394 |
Method of sealing permeable unconsolidated materials
Methods of forming layers of material upon or below the earth's surface and above the water table to prevent or effectively inhibit the flow of groundwaters through such laters of initially...
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4931192 |
Method for the disposal of hazardous non-polar organic wastes
A method for disposing of non-polar organic wastes including the steps of dissolving the organic waste in an organic solvent which is not environmentally objectionable, in combination with a...
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4892684 |
Method and apparatus for separating radionuclides from non-radionuclides
In an apparatus for separating radionuclides from non-radionuclides in a mixture of nuclear waste, a vessel is provided wherein the mixture is heated to a temperature greater than the temperature...
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4877353 |
Waste pile
Apparatus and method for embedding hazardous waste material deeply within stable geological formations. The hazardous material is placed in containers and the containers are placed inside hollow...
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4863638 |
Process for hazardous waste containment
A process for containment of hazardous waste is disclosed including initially encasing the waste material into a plurality of containment vessels each of which includes a coding on the exterior...
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4844840 |
Method and structure for hazardous waste containment
Primary waste containers are placed in prefabricated canisters and sealed with a curable fluid sealant, such as grout. The canisters are then stacked in an interlocking manner to form a stable...
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4844839 |
In situ treatment and analysis of wastes
Hazardous wastes are identified and treated in situ by forming a downwardly extending zone of particles in the waste. Toxic components in the waste are identified by injection of a pressurized...
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4784802 |
Nuclear waste disposal site
A land disposal site for the disposal of nuclear waste is disclosed which generally comprises a trench, a non-rigid, water-shedding cap formed from alluvium and silt which overlies this depression,...
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4778628 |
Underground waste barrier structure
Disclosed is an underground waste barrier structure that consists of waste material, a first container formed of activated carbonaceous material enclosing the waste material, a second container...
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4738564 |
Nuclear and toxic waste recycling process
A new and useful process for the safe and convenient disposal of nuclear and toxic wastes. Such wastes are containerized and deposited in active volcanoes containing molten lava, the weight of the...
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4725164 |
Method of excavating a storage complex in rock for storing radioactive waste
The present invention relates to a method of excavating a storage complex in rock for storing radioactive material, or other harmful material. The complex to which the method relates comprises a...
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4701280 |
Procedure for permanently storing radioactive material
The invention provides for a procedure for permanently storing radioactive material in a rock chamber, comprising an enclosed construction (4) completely separated from the walls, floor and ceiling...
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4636358 |
Concretization of high level radioactive source in marine sediment
A concretized coating which encapsulates canisters of radioactive, heat-producing materials is caused to be formed by immersing said canister in a sea floor sedimentary layer, the sediment...
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4586849 |
Nuclear disposal method and system
Radioactive waste material is permanently stored without the need of constant surveillance by depositing the material in a cavity located in a rock formation above the water table and between two...
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4560503 |
Fluid waste disposal
A method of disposing of fluid waste in underground permeable strata having original fluid pressure in the pores which is less than normal hydrostatic pressure.
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4500227 |
Process and geological installation for the removal of radioactive waste
It comprises in combination a series of vertical shafts for passing the waste down into the subsoil, and for ventilation purposes, linking the ground surface to the very deep storage location; a...
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4483790 |
Method of disposing of shut-down nuclear power plants
A shut-down atomic power plant or a section thereof, particularly the nuclear reactor, is disposed of by sinking it to below ground level by constructing a caisson with cutting edges from the...
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4430256 |
Reverse thermodynamic chemical barrier for nuclear waste over-pack or backfill
Radioactive waste is stored surrounded by an overpack or backfill containing non-radioactive ions of the same radioactive elements as in the waste form. In place of an overpack of the actinides,...
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4428700 |
Method for disposing of waste materials
A method is described for the confinement and isolation of waste materials, especially those that are toxic or otherwise hazardous such as radioactive wastes. The waste material, either contained...
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4400314 |
Method for the ultimate disposal of high level radioactive waste
A method is disclosed for disposing of an aqueous solution of radioactive nuclides, in which the solution is diluted with formation water recovered from a subsea reservoir in a porous geological...
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4377509 |
Packaging for ocean disposal of low-level radioactive waste material
A packaging system for storage of containers of low-level radioactive waste consisting of a concrete shell structure that houses the containers and a dry filler material that surrounds them. Void...
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4326820 |
Final depository for radioactive wastes
A final depository located underground for storing radioactive wastes contained in storable shielded containers, composed of at least one shaft extending downwardly from the ground surface, an...
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4321158 |
Backfill composition for secondary barriers in nuclear waste repositories
A backfill composition for sorbing and retaining hazardous elements of nuclear wastes comprises 50-70% by weight of quartz, 10-30% by weight of montmorillonite, 1-10% by weight of phosphate...
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4316814 |
Seal for a storage bore hole accommodating radioactive waste and method of applying the seal
A storage arrangement for radioactive waste includes a storage bore hole defined by walls of a rock formation, vessels containing radioactive waste deposited in a vertical series in the storage...
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