Patrick V. Brady
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View article: Methods and systems for capturing and storing carbon dioxide
Methods and systems for capturing and storing carbon dioxide Open
Methods and systems for capturing and storing carbon dioxide are disclosed. In some embodiments, the methods include the following: mixing materials including magnesium or calcium with one or more acids and chelating agents to form a magne…
View article: Injection withdrawal tracer tests to assess proppant placement
Injection withdrawal tracer tests to assess proppant placement Open
Placement of proppant in subterranean formations during hydraulic fracturing is assessed. A method of one aspect includes introducing a hydraulic fracturing fluid including a proppant into a subterranean formation through a well. Samples o…
View article: In-tank recirculating arsenic treatment system
In-tank recirculating arsenic treatment system Open
A low-cost, water treatment system and method for reducing arsenic contamination in small community water storage tanks. Arsenic is removed by using a submersible pump, sitting at the bottom of the tank, which continuously recirculates (at…
View article: Waterflooding injectate design systems and methods
Waterflooding injectate design systems and methods Open
A method of recovering a liquid hydrocarbon using an injectate includes recovering the liquid hydrocarbon through primary extraction. Physico-chemical data representative of electrostatic interactions between the liquid hydrocarbon and the…
View article: In situ removal of contamination from soil
In situ removal of contamination from soil Open
A process of remediation of cationic heavy metal contamination from soil utilizes gas phase manipulation to inhibit biodegradation of a chelating agent that is used in an electrokinesis process to remove the contamination, and further gas …
View article: Financial methods for waterflooding injectate design
Financial methods for waterflooding injectate design Open
A method of selecting an injectate for recovering liquid hydrocarbons from a reservoir includes designing a plurality of injectates, calculating a net present value of each injectate, and selecting a candidate injectate based on the net pr…
View article: Inorganic ion sorbent method
Inorganic ion sorbent method Open
A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants…
View article: PH adjustment of power plant cooling water with flue gas/fly ash
PH adjustment of power plant cooling water with flue gas/fly ash Open
A system including a vessel including a heat source and a flue; a turbine; a condenser; a fluid conduit circuit disposed between the vessel, the turbine and the condenser; and a diverter coupled to the flue to direct a portion of an exhaus…
View article: Process and apparatus for separation of components of a gas stream
Process and apparatus for separation of components of a gas stream Open
A process and apparatus for separating a gas mixture comprising providing a slot in a gas separation channel (conceptualized as a laterally elongated Clusius-Dickel column), having a length through which a net cross-flow of the gas mixture…
View article: In situ remediation process using divalent metal cations
In situ remediation process using divalent metal cations Open
An in situ process for treating ambient solid materials (e.g., soils, aquifer solids, sludges) by adding one or more divalent metal cations to the ambient solid material. The added divalent metal cations, such as Cu.sup.2+ or Zn.sup.2+, co…
View article: Inherently safe in situ uranium recovery
Inherently safe in situ uranium recovery Open
An in situ recovery of uranium operation involves circulating reactive fluids through an underground uranium deposit. These fluids contain chemicals that dissolve the uranium ore. Uranium is recovered from the fluids after they are pumped …
View article: Cask weeping mitigation
Cask weeping mitigation Open
A method (and concomitant kit) for treating a surface to reduce subsequent .sup.137Cs nuclide desorption comprising contacting the surface with a first cation-containing solution, the cation being one or more of Cs.sup.+, Rb.sup.+, Ag.sup.…
View article: Arsenic removal in conjunction with lime softening
Arsenic removal in conjunction with lime softening Open
A method for removing dissolved arsenic from an aqueous medium comprising adding lime to the aqueous medium, and adding one or more sources of divalent metal ions other than calcium and magnesium to the aqueous medium, whereby dissolved ar…
View article: Apatite sequestration of selenium
Apatite sequestration of selenium Open
A method for sequestering selenium is disclosed. The method includes contacting selenium with a stannous modified apatite under conditions whereby the selenium is absorbed by the apatite.
View article: Inorganic ion sorbents and methods for using the same
Inorganic ion sorbents and methods for using the same Open
A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants…
View article: Inorganic ion sorbents
Inorganic ion sorbents Open
A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants…
View article: Method for enhancing hydrocarbon recovery from tight formations
Method for enhancing hydrocarbon recovery from tight formations Open
A method of increasing recovery of liquid hydrocarbons from subsurface reservoirs, and particularly from those located in tight formations, is disclosed. One aspect includes calculating the in situ fractured formation wettability from real…
View article: Method of removing arsenic and other anionic contaminants from contaminated water using enhanced coagulation
Method of removing arsenic and other anionic contaminants from contaminated water using enhanced coagulation Open
An improved water decontamination process comprising contacting water containing anionic contaminants with an enhanced coagulant to form an enhanced floc, which more efficiently binds anionic species (e.g., arsenate, arsenite, chromate, fl…
View article: Molecular dynamics study of uranyl adsorption from aqueous solution to smectite
Molecular dynamics study of uranyl adsorption from aqueous solution to smectite Open
Adsorption of aqueous uranyl species in pore spaces of clay minerals plays a key role in post-closure safety assessments for geological disposal of radioactive waste. Molecular Dynamics Simulations (MDS) were performed to study the adsorpt…
View article: The Sandia National Laboratories Natural Circulation Cooler
The Sandia National Laboratories Natural Circulation Cooler Open
Sandia National Laboratories (SNL) is developing a cooling technology concept — the Sandia National Laboratories Natural Circulation Cooler (SNLNCC) — that has potential to greatly improve the economic viability of hybrid cooling for power…
View article: The Palo Verde Water Cycle Model (PVWCM) – Development of an Integrated Multi-Physics and Economics Model for Effective Water Management
The Palo Verde Water Cycle Model (PVWCM) – Development of an Integrated Multi-Physics and Economics Model for Effective Water Management Open
Water management has become critical for thermoelectric power generation in the US. Increasing demand for scarce water resources for domestic, agricultural, and industrial use affects water availability for power plants. In particular, the…
View article: The Palo Verde Water Cycle Model (PVWCM).
The Palo Verde Water Cycle Model (PVWCM). Open
use on a personal computer (PC) with a Definicon Systems' 50-MHz coprocessor board. The GUI face used was Expert-EASE Systems' EASE+SIM3 Version 3.0 pre-/postprocessor. The system was installed on Compaq Deskpro 386/20e PCs located in the …
View article: Development and Advanced Testing of DPC Cement Fillers
Development and Advanced Testing of DPC Cement Fillers Open
The fillers research and development (R&D;) program, mostly experimental, is part of a broader R&D; program that includes new process modeling and performance assessment of criticality effects and the overall importance of criticality to r…