Results 171 to 180 of about 261,344 (238)

Subseabed disposal of radioactive waste: effects of consolidational fluid flow

Environmental Geology, 1996
Subseabed disposal of radioactive waste applies a multiple-barrier concept with the sediment being the most important barrier for preventing a release of nuclides into the biosphere. While many investigations have been carried out to analyze the risk potential in this type of disposal, the effects of sediment consolidation and associated fluid flow ...
K. Bitzer
openaire   +2 more sources

O and H diffusion in uraninite: Implications for fluid–uraninite interactions, nuclear waste disposal, and nuclear forensics

Geochimica et Cosmochimica Acta, 2011
Abstract Diffusion coefficients for oxygen and hydrogen were determined from a series of natural uraninite–H 2 O experiments between 50 and 700 °C. Under hydrous conditions there are two diffusion mechanisms: (1) an initial extremely fast-path diffusion mechanism that overprinted the oxygen isotopic composition of the entire crystals regardless of ...
Mostafa Fayek, Lawrence M. Anovitz, David R. Cole, Debra A. Bostick   +3 more
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Simulation of Fluid Flow and Energy Transport Processes Associated With High‐Level Radioactive Waste Disposal in Unsaturated Alluvium

Water Resources Research, 1986
Many parts of the Great Basin have thick zones of unsaturated alluvium which might be suitable for disposing of high‐level radioactive wastes. A mathematical model accounting for the coupled transport of energy, water (vapor and liquid), and dry air was used to analyze one‐dimensional, vertical transport above and below an areally extensive repository.
D. W. Pollock
openaire   +2 more sources

Offshore Disposal of Oil-Based Drilling-Fluid Wastes An Environmentally Acceptable Solution

SPE Drilling & Completion, 1993
Summary Oily cuttings and waste fluid are byproducts of oil-based drilling muds. In such difficult drilling environments as the Gulf of Mexico, where oil-based fluids often are preferred, personnel safety, environmental, and economic concerns are exacerbated by the necessity to transport these cuttings and fluids to shore for disposal ...
Ed Malachosky, B. E. Shannon, J. E. Jackson, W. G. Aubert   +3 more
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Disposal of Hydrofracking Waste Fluid by Injection into Subsurface Aquifers Triggers Earthquake Swarm in Central Arkansas with Potential for Damaging Earthquake

Seismological Research Letters, 2012
Only a handful of the thousands of waste disposal wells across the United States have been linked to induced or triggered earthquakes. Still, two well-documented cases—Rocky Mountain Arsenal, Colorado, in the 1960s (Healy et al. 1968) and Paradox Valley, Colorado, in the 1990s (Ake et al.
S. Horton
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An examination of metal inputs to the southern Beaufort Sea by disposal of waste barite in drilling fluid

Ocean Management, 1982
Abstract Barites often contain trace metal impurities. Oil exploration in the Beaufort Sea will require barite as a major component of drilling fluid, most of which will be disposed after drilling. The trace metal impurities Hg, Pb, Zn and Cu have been examined by considering the natural budget and residence time of these elements for the Beaufort ...
R. Macdonald
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Waste Management and Disposal of Cuttings and Drilling Fluid Waste Resulting from the Drilling and Completion of Wells to Produce Orinoco Very Heavy Oil in Eastern Venezuela

SPE International Conference on Health, Safety, and Environment in Oil and Gas Exploration and Production, 1998
Abstract During the next decade and beyond, a large number of wells will be drilled in Eastern Venezuela in order to produce very heavy oil. Because of both the nature of the reservoir and the length of the horizontal section, water based drilling fluids will become contaminated with anywhere from 3–20% crude oil during the drilling ...
J.M. Getliff, M.P. Silverstone, A.K. Shearman, M. Lenn, T. Hayes   +4 more
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Effect of Variable Compression Ratio on Performance and Emissions in Compression Ignition Engine Fuelled with Waste Cooking Oil with Copper Oxide Nano Fluid Blends

International Journal of Vehicle Structures and Systems, 2021
One of the challenging issues in the world today is waste management. Improper waste management could be the main source of environmental pollution. In this context, an attempt has been made to prevent the disposal of large quantities of Waste Cooking ...
D. Kumaran, S. S. Sivam
semanticscholar   +1 more source

Hazardous Waste Disposal by Supercritical Fluids

Separation Science and Technology, 1997
In the presence of water or carbon dioxide in the supercritical state, organic materials can be oxidized by oxygen practically completely within seconds. The report contains descriptions of test rigs and experimental findings. Additional R&D work is necessary for technical-scale application in cleaning organically polluted liquid effluents.
Bleyl, H. J., Abeln, J., Boukis, N., Goldacker, H., Kluth, M., Kruse, A., Petrich, G., Schmieder, H., Wiegand, G.   +8 more
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Durability of Zirconolite in Hydrothermal Fluids: Implications for Nuclear Waste Disposal

MRS Proceedings, 2000
ABSTRACTSynthetic zirconolite (CaZrTi2O7) doped with rare earth elements (REEs) and Hf has been subjected to corrosion tests in a closed system at elevated temperature and pressure in fluids with various compositions. Together with previous studies, the results indicate only a very weak corrosion below 250°C at a pressure of 50 MPa.
R. Gieré, J. Malmström, E. Reusser, G.R. Lumpkin, M. Düggelin, D. Mathys, R. Guggenheim, D. Günther   +7 more
openaire   +1 more source