Download or read book Measured Solubilities and Speciations from Oversaturation Experiments of Neptunium Plutonium and Americium in UE 25p No 1 Well Water from the Yucca Mountain Region written by and published by . This book was released on 1994 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solubility and speciation are important in understanding aqueous radionuclide transport through the geosphere. They define the source term for transport retardation processes such as sorption and colloid formation. Solubility and speciation data are useful in verifying the validity of geochemical codes that are a part of predictive transport models. Results are presented from solubility and speciation experiments of 237NpO2, 239Pu{sup 4+}, and 241Am{sup 3+}/Nd{sup 3+} in a modified UE-25p No. 1 groundwater (from the Yucca Mountain region, Nevada, which is being investigated as a potential high-level nuclear waste disposal site) at two different temperatures (25° and 60°C) and three pH values (6.0, 7.0, 8.5). The solubility-controlling steady-state solids were identified and the speciation and/or oxidation states present in the supernatant solutions were determined. The neptunium solubility decreased with increasing temperature and pH. Plutonium concentrations significantly decreased with increasing temperature at pH 6 and 7. The concentration at pH 8.5 hardly decreased at all with increasing temperature. At both temperatures the concentrations were highest at pH 8.5, lowest at pH 7, and in between at pH 6. For the americium/neodymium solutions, the solubility decreased significantly with increasing temperature and increased somewhat with increasing pH.

Download or read book Measured Solubilities and Speciations from Oversaturation Experiments of Neptunium Plutonium and Americium in UE 25p 1 Well Water from the Yucca Mountain Region Milestone Report 3329 WBS 1 2 3 4 1 3 1 written by Heino Nitsche and published by . This book was released on 1994 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measured Solubilities and Speciations of Neptunium Plutonium and Americium in a Typical Groundwater J 13 from the Yucca Mountain Region Milestone Report 3010 WBS 1 2 3 4 1 3 1 written by Heino Nitsche and published by . This book was released on 1993 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measured Solubilities and Speciations of Neptunium Plutonium and Americium in a Typical Groundwater J 13 from the Yucca Mountain Region Milestone Report 3010 WBS 1 2 3 4 1 3 1 written by and published by . This book was released on 1993 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solubility and speciation data are important in understanding aqueous radionuclide transport through the geosphere. They define the source term for transport retardation processes such as sorption and colloid formation. Solubility and speciation data are useful in verifying the validity of geochemical codes that are part of predictive transport models. Results are presented from solubility and speciation experiments of 237NpO2, 239Pu{sup 4+}, 241Am{sup 3+}/Nd{sup 3+}, and 243Am{sup 3+} in J-13 groundwater (from the Yucca Mountain region, Nevada, which is being investigated as a potential high-level nuclear waste disposal site) at three different temperatures (25°, 60°, and 90°C) and pH values (5.9, 7.0, and 8.5). The solubility-controlling steady-state solids were identified and the speciation and/or oxidation states present in the supernatant solutions were determined. The neptunium solubility decreased with increasing temperature and pH. Plutonium concentrations decreased with increasing temperature and showed no trend with pH. The americium solutions showed no clear solubility trend with increasing temperature and increasing pH.

Download or read book Measured Solubilities and Speculations from Oversaturation Experiments of Neptunium Plutonium and Americium in UE 25p No 1 Well Water from the Yucca Mountain Region written by and published by . This book was released on 1994 with total page 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 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solubility and Speciation Results from Oversaturation Experiments on Neptunium Plutonium and Americium in a Neutral Electrolyte with a Total Carbonate Similar to Water from Yucca Mountain Region Well UE 25p 1 written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1995 with total page 1686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Download or read book Solubility and Speciation Results from Over and Undersaturation Experiments on Neptunium Plutonium and Americium in Water from Yuccca Mountain Region Well UE 25p 1 written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Speciation of Plutonium and Americium in Ground Waters from the Radioactive Waste Management Complex Idaho National Engineering Laboratory Idaho written by Jesse M. Cleveland and published by . This book was released on 1993 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Radiochemistry of Uranium Neptunium and Plutonium written by Richard A. Roberts and published by National Academies. This book was released on 1986 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spherical Harmonic Reduction of the Fokker planck Equation written by Thomas A. Oliphant and published by . This book was released on 1965 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fokker-Planck equation is reduced to aform that is useful from the viewpoint of doing practical calculations of problems involving configuration space as well as velocity space. The basic technique is a spherical harmonic decomposition in velocity space that reduces the number of independent variables by two. As an example, we show how to apply this method to a problem with theta-pinch geometry.

Download or read book The Transport Cross Section of Helium for Fast Neutrons written by Paul Olum and published by . This book was released on 1947 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Other Details of Post fission Beta Decay written by James J. Griffin and published by . This book was released on 1964 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Implicit Numerical Method for Solving the Two dimensional Heat Equation written by George A. Baker and published by . This book was released on 1958 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low energy Cross Section of the D D Reaction and Angular Distribution of the Protons Emitted written by Egon Bretscher and published by . This book was released on 1950 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thick target yield of the reaction D + D yields T + p + 3.98 Mev has been measured, using a heavy ice target, and observations have been made on the angular distribution of the protons. Experiments have been carried out in the region 15 Kev to 105 Kev incident deuteron energy. Evidence has been obtained that, even for very small bombarding energies, the angular distribution of protons in the center-of-gravity (c.g.) system does not become Isotropic. The variation of the cross section with energy can only approximately be represented by a Gamow function.