Published 1995 | Version v1
Book Metadata-only

Neptunium, plutonium, and americium solubility and speciation studies in a neutral electrolyte with a total carbonate concentration simulating UE-25P No. 1 well water

Creators

  • 1. Lawrence Berkeley Lab., CA (United States)
  • 2. Institut fuer Radiochemie, Dresden (Germany)

Description

In these experiments we have approached the solubility equilibrium from oversaturation. Results are given for solubility and speciation experiments of 237NpO2+, 239Pu4+, and 241Am3+ in a neutral electrolyte (0.1 M NaC1O4) containing a total carbonate concentration similar to UE-25p No. 1 groundwater (0.015 M) at 25 degrees C and at three pH values (6, 7, and 8.5). In these experiments, the solubility-controlling solids were identified and the speciation and/or oxidation states present in the supernatant solutions were determined. Trivalent neodymium was used as an oxidation state analog for 241Am(III) in order to reduce the radiolysis effects in the solutions. The 241Am(III) was included as a tracer for radioanalytical counting of samples

Additional details

Additional titles

Augmented title (English)
Yucca Mountain Project

Publishing Information

Publisher
American Nuclear Society, Inc.; American Society of Civil Engineers.
Imprint Place
La Grange Park, IL (United States)
Imprint Title
High level radioactive waste management: Proceedings
Imprint Pagination
811 p.
Journal Page Range
p. 137-138.

Conference

Title
6. annual international conference on high level radioactive waste management.
Dates
30 Apr - 5 May 1995.
Place
Las Vegas, NV (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
27037354
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S54: ENVIRONMENTAL SCIENCES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
AMERICIUM 241; ENVIRONMENTAL TRANSPORT; GROUND WATER; HIGH-LEVEL RADIOACTIVE WASTES; NEPTUNIUM OXIDES; NEPTUNIUM 237; PLUTONIUM 239; RADIOACTIVE WASTE DISPOSAL; RADIOACTIVE WASTE FACILITIES; RADIONUCLIDE MIGRATION; SITE CHARACTERIZATION; SOLUBILITY; UNDERGROUND FACILITIES; VALENCE; WELLS; YUCCA MOUNTAIN
Descriptors DEC
ACTINIDE COMPOUNDS; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; CHALCOGENIDES; EVEN-ODD NUCLEI; HEAVY NUCLEI; HYDROGEN COMPOUNDS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MANAGEMENT; MASS TRANSFER; MATERIALS; MOUNTAINS; NANOSEC LIVING RADIOISOTOPES; NEPTUNIUM COMPOUNDS; NEPTUNIUM ISOTOPES; NUCLEAR FACILITIES; NUCLEI; ODD-EVEN NUCLEI; OXIDES; OXYGEN COMPOUNDS; PLUTONIUM ISOTOPES; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTOPES; TRANSURANIUM COMPOUNDS; WASTE DISPOSAL; WASTE MANAGEMENT; WASTES; WATER; YEARS LIVING RADIOISOTOPES

Optional Information

Secondary number(s)
CONF-9504179--.