Download or read book Study of the Leaching Radium 226 from Uranium Mine Tailings written by Zulfikaaralli Khoja and published by . This book was released on 1977 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Disposal of Uranium Mill Tailings a Study of Leaching of Radium 226 and Its Fate in the Environment written by Jatin Shantilal Nathwani and published by c1978.. This book was released on 1978 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of radium 226 co precipitates in uranium mill tailings by secondary ion mass spectrometry written by James J. McGrath and published by . This book was released on 1986 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Leachability of Radioactive Constituents from Uranium Mine Tailings written by T. W. Constable and published by Ottawa :Environment Canada, Environmental Protection, Wastewater Technology Centre. This book was released on 1987 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radium Removal from Uranium Ores and Mill Tailings written by S. Ralph Borrowman and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Barium Chlorine Treatment of Uranium Ore on 222Rn Emanation and 226Ra Leachability from Mill Tailings written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this laboratory study was to investigate the effectiveness of barium chloride treatment of uranium ore on 222Rn emanation from mill tailings, 226Ra level in waste-water, and the leachability of radium from tailings. It has been shown that barium sulfate is an excellent carrier for radium and that barium sulfate crystals have high retention capacity for radon gas produced by radium trapped within the lattice. Ground uranium ore from a mine in Wyoming was mixed with water to form a 1:1 ratio before barium and potassium chlorides were added at concentrations of 0, 10, 25, 50, and 100 mg per liter of slurry. The ore was then subjected to a simulated mill process using sulfuric acid leaching. The liquid representing tailings pond water was separated and analyzed for 226Ra and the solid fraction, representing mill tailings, was tested for radon emanation and the leachability of radium by deionized water. This study suggests that barium treatment of uranium ore prior to sulfuric acid leaching could be effective in reducing radon emanation from tailings and also in reducing the 226Ra concentration of waste-water. Leachability of radium from treated tailings was markedly reduced.
Download or read book Removal of Radium 226 from Uranium Mining Effluents written by David W. Averill and published by Environment Canada, Environmental Protection Service. This book was released on 1984 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An intensive process development program for the removal of radium-226 from uranium mining effluents was undertaken jointly by representatives of the Government of Canada and the Canadian Uranium Mining Industry between 1978 and 1980. One of the implicit objectives was the dissemination of the information developed. To ensure complete documentation of the program, this information has been compiled in three volumes. Volume I is reproduced in this report.
Download or read book Removal of Hazardous Radionuclides from Uranium Ore And or Mill Tailings Progress Report October 1 1978 September 30 1979 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The leaching of uranium ore and mill tailings to remove radium was studied. A few scouting tests were performed to obtain data on the recovery of radium, thorium, and uranium from leach liquors and on the recycle of leaching agents. Nitric acid, hydrochloric acid, ethylenediaminetetraacetic acid (EDTA), and diethylenetriaminepentaacetic acid (DTPA) were evaluated as leachants using one sample of a western US ore and two samples of tailings obtained from different uranium mills that employ the sulfuric acid leach process. Leached solids with radium contents approaching 10 pCi/g (98% radium removal) were obtained after six stages of batch, crosscurrent leaching with 3 M HNO3 at 33% concentration of solids and a temperature of 60°C. On the basis of two-stage tests on mill tailings, 0.5 M EDTA solutions at pH values of 8.2 to 11.6 were found to be more effective, while hydrochloric acid in two- or three-stage tests was less effective than nitric acid. Solutions of 0.3 M EDTA and 0.05 M DTPA were ineffective. No important differences were observed in the leaching behavior of ore and of mill tailings derived from the same ore. The residue remaining after six stages of nitric acid leaching was relatively intractable to radium leaching with water or additional nitric acid leaching. Tests indicated that the recycle of nitric acid is chemically feasible by evaporating the leach liquors to recover unused acid and then thermally decomposing the metal salts to recover consumed acid. Radium recoveries of 99+% by carrying on barium sulfate were shown to be chemically feasible in a series of experiments with leach liquors, but processing applications would probably require methods for barium recycle and barium-radium separation. Recovery of 23°Th and uranium from nitrate leach liquors by tri-n-butyl phosphate extraction appears promising in initial tests.
Download or read book Groundwater Leaching of Neutralized and Untreated Acid leached Uranium mill Tailings written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Tailings neutralization was examined to determine the effect of neutralization on contaminant release. Column leaching of acid extracted uranium mill tailings from Exxon Highland Mill, Wyoming, Pathfinder Gas Hills Mill, Wyoming, and the Dawn Midnite Mill, Washington, resulted in the flushing of high concentrations of salts in the first four pore volumes of leachate, followed by a steady decrease to the original groundwater salt concentrations. Neutralization decreased the concentration of salts and radionuclides leaching from the tailings and decreased the volume of solution required to return the solution to the groundwater pH and EC. Radium-226 and uranium-238 leached quickly from the tailings in the initial pore volumes of both neutralized and unneutralized tailings, and then decreased significantly. 6 figures, 5 tables.
Download or read book Radium 226 in Uranium Mill Tailings written by H.F. Steger and published by . This book was released on 1977 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Long Term Stabilization of Uranium Mill Tailings written by and published by . This book was released on 2004 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes the current state of the art of uranium mill tailings disposal and the results from an IAEA Coordinated Research Project (CRP) on technologies and strategies for their long term stabilization. The aim of the CRP was to develop conceptual and technical solutions that render tailings more inert over prolonged time spans.
Download or read book Remediation of Uranium Mill Tailings written by Prafulla Soni and published by CRC Press. This book was released on 2023-07-31 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers issues pertaining to uranium tailings with special reference to consolidation of radioactivity including systematic ecological strategy for consolidation of radionuclides in uranium tailings. It discusses sustainable consolidation of radioactivity and checks the migration of unextracted uranium from tailing piles to plants and atmosphere supported by a case study from a uranium mine. It provides simple ecological solutions for the remediation of radioactivity in mill tailings. Features: Provides insight into the application of applied ecology for bioremediation of radioactive wastes. Discusses species selection criteria for tailings radioactivity consolidation. Explains safe treatment of the tailings of radioactive ore processing plants. Illustrates the role of ethnobotany in the selection of the most appropriate species to effectively use in bioremediation. Focuses on experimental outcomes. This book is aimed at researchers and professionals in mining engineering, applied geology, nuclear tailings and environmental protection.
Download or read book Radium 226 Measurements Below Uranium Mill Tailings Piles written by Lial W. Brewer and published by . This book was released on 1982 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Uranium mining Releases on Ground water Quality in the Puerco River Basin Arizona and New Mexico written by and published by . This book was released on 1997 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Facility Decommissioning and Site Remedial Actions written by and published by . This book was released on 1980 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Notes on the Differential Leaching of Uranium Radium and Lead from Pitchblende in H2SO4 Solutions written by George Phair and published by . This book was released on 1952 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-04 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
