Actinide analytical program for characterization of Hanford waste
The objective of this program has been to develop faster, more accurate methods for the concentration and determination of actinides at their maximum permissible concentration (MPC) levels in a controlled zone. These analyses are needed to characterize various forms of Hanford high rad waste and to support characterization of products and effluents from new waste management processes. The most acceptable methods developed for the determination of /sup 239/Pu, /sup 238/Pu, /sup 237/Np, /sup 241/Am, and /sup 243/Cm employ solvent extraction with the addition of tracer isotopes. Plutonium and neptunium are extracted from acidified waste solutions into Aliquat-336. Americium and curium are then extracted from the waste solution at the same acidity into dihexyl-N,N-diethylcarbamylmethylenephosphonate (DHDECMP). After back extraction into an aqueous matrix, these actinides are electrodeposited on steel disks for alpha energy analysis. Total uranium and total thorium are also isolated by solvent extraction and determined spectrophotometrically.
- Research Organization:
- Atomics International Div., Richland, Wash. (USA). Rockwell Hanford Operations
- Sponsoring Organization:
- US Energy Research and Development Administration (ERDA)
- DOE Contract Number:
- EY-76-C-06-2130
- OSTI ID:
- 5142318
- Report Number(s):
- ARH-SA-296; CONF-771031-12; TRN: 78-007566
- Resource Relation:
- Conference: 21. conference on analytical chemistry in energy technology, Gatlinburg, TN, USA, 4 Oct 1977
- Country of Publication:
- United States
- Language:
- English
Similar Records
New ion exchangers and solvent extractants for pre-analysis separation of actinides. Annual report, June 1982-May 1983
Extraction behavior of technetium and actinides in the Aliquat-336/nitric acid system
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
AMERICIUM
QUANTITATIVE CHEMICAL ANALYSIS
CURIUM
NEPTUNIUM
PLUTONIUM
THORIUM
ACTINIDES
ELECTRODEPOSITION
RADIOMETRIC ANALYSIS
SOLVENT EXTRACTION
SPECTROPHOTOMETRY
TRACER TECHNIQUES
CHEMICAL ANALYSIS
DEPOSITION
ELECTROLYSIS
ELEMENTS
EXTRACTION
ISOTOPE APPLICATIONS
LYSIS
METALS
SEPARATION PROCESSES
SURFACE COATING
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
400100* - Analytical & Separations Chemistry
052000 - Nuclear Fuels- Waste Management