Leach testing of in situ stabilization grouts containing additives to sequester contaminants
- Pacific Northwest Lab., Richland, WA (United States)
- Westinghouse Hanford Co., Richland, WA (United States)
This document discusses laboratory testing performed by Pacific Northwest Laboratory (PNL) for Westinghouse Hanford Company (WHC) of special grout formulations that incorporate specific sequestering agents to help improve the ability of the cement to resist contaminant leaching. To enhance the sequestering of contaminants we chose five additives to introduce (singly) to the control cement. The additives were Florida pebble phosphate, clinoptilolite (a natural zeolite), ferrous sulfide (a reductant), a mixed bed organic ion exchange resin and a proprietary anion-adsorbing mixed metal oxide. These additives were added one per test to the standard formulation and used to encapsulate a diluted high-salt alkaline liquid waste that is produced after various processes to remove uranium and plutonium from spent nuclear fuel. This report documents the testing of these additives.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 10156918
- Report Number(s):
- PNL-8492; ON: DE93012861
- Resource Relation:
- Other Information: PBD: Apr 1993
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
GROUTING
CHEMICAL COMPOSITION
CESIUM 137
LEACHING
TECHNETIUM 99
STRONTIUM
SELENIUM OXIDES
CHROMIUM OXIDES
HANFORD RESERVATION
CEMENTS
FLUIDIZED BEDS
PHOSPHATES
CLINOPTILOLITE
SULFIDES
CONTAINMENT
SAFETY
TESTING
ION EXCHANGE MATERIALS
SOILS
RESINS
052002
540230
WASTE DISPOSAL AND STORAGE
RADIOACTIVE MATERIALS MONITORING AND TRANSPORT