Characterization of uranium contaminated soils from DOE Fernald Environmental Management Project Site: Results of Phase 1 characterization

Technical Report · Wed Jan 01 00:00:00 EST 1992

DOI:https://doi.org/10.2172/5892651· OSTI ID:5892651

Lee, S Y; Marsh, Jr, J D

The Integrated Demonstration (ID) for remediation of uranium- contaminated soils has been established by the DOE Office of Technology Development. The Fernald (Feed Materials Production Center) site was selected as the DOE facility for the field demonstration. The principle objective of this ID is to evaluate and compare the versatility, efficiency, and economics of various technologies that may be combined into systems for the removal of uranium from contaminated soils. Several leaching solutions were employed to determine their effectiveness in extracting uranium from the soil. The extractants and their means of preparation were: 0.1 N nitric acid (HNO{sub 3}): 6.25 mL of concentrated nitric acid was diluted to 1 L with distilled water; 2% ammonium carbonate ((NH{sub 4}){sub 2}CO{sub 3}): 20 g of (NH{sub 4}){sub 2}CO{sub 3} was dissolved in distilled water and diluted to 1 L; 5% sodium hypochlorite (NaOCl): 50 mL of NaOCl reagent (Cl < 6%) was diluted to 1 L with distilled water; 0.1 M ethylenediaminetetraacetric acid, disodium salt (EDTA): 37.224 g EDTA was dissolved in distilled water and diluted to 1 L; 2% citric acid monohydrate solution (H{sub 3}C{sub 6}H{sub 5}O{sub 7}{center dot}H{sub 2}O): 20 g of critic acid was diluted to 1 L with distilled water; 0.1 M hydroxylamine-hydrochloride (NH{sub 2}OH{center dot}HCl) in 0.01 N nitric acid: 6.95 g (NH{sub 2}OH{center dot}HCl) was dissolved and diluted to 1 L with 0.01 N HNO{sub 3}. The 0.01 N nitric acid was prepared by diluting 3 mL concentrated nitric acid to 5 L with distilled water; and the sodium citrate-bicarbonate-dithionite (CBD) method: 0.3 M sodium citrate (88 g tribasic sodium citrate, Na{sub 3}C{sub 6}H{sub 5}O{sub 7}{center dot}2H{sub 2}O, per liter); 1 M sodium bicarbonate (84 g NaHCO{sub 3} per liter); and 5 g sodium dithionite, Na{sub 2}S{sub 2}O{sub 4}.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5892651
• Report Number(s): ORNL/TM-11980; ON: DE92007403
• Resource Relation: Other Information: Environmental Sciences Division Publication No. 3786
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
SOILS
DECONTAMINATION
URANIUM
EXTRACTION
AMINES
AMMONIUM CARBONATES
CITRATES
CITRIC ACID
COMPARATIVE EVALUATIONS
DEMONSTRATION PROGRAMS
EDTA
FEED MATERIALS PRODUCTION CENTER
HYDROCHLORIC ACID
MINERALS
NITRIC ACID
PARTICLE SIZE
RADIOECOLOGICAL CONCENTRATION
SODIUM COMPOUNDS
ACTINIDES
ALKALI METAL COMPOUNDS
AMINO ACIDS
AMMONIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHELATING AGENTS
CHLORINE COMPOUNDS
CLEANING
ECOLOGICAL CONCENTRATION
ELEMENTS
EVALUATION
FEED MATERIALS PLANTS
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXY ACIDS
INDUSTRIAL PLANTS
INORGANIC ACIDS
METALS
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SIZE
US AEC
US DOE
US ERDA
US ORGANIZATIONS
540250* - Environment
Terrestrial- Site Resource &amp; Use Studies- (1990-)
540230 - Environment
Terrestrial- Radioactive Materials Monitoring &amp; Transport- (1990-)
400105 - Separation Procedures
054000 - Nuclear Fuels- Health &amp; Safety