Support for characterization, grout formulations, and stabilization of K-1407-B and K-1407-C pond sludges

Technical Report · Thu Sep 01 04:00:00 EDT 1988

OSTI ID:6814494

Shoemaker, J L; Bostick, W D

The Oak Ridge Gaseous Diffusion Plant (ORGDP) has generated large quantities of mixed hazardous and radioactive wastes over the years. Most of these wastes are contained as sludges in two large treatment and settling ponds, K-1407-B pond and K-1407-C pond. The federal mandate requiring that all surface impoundments be discontinued and closed by November 1988 makes the need for remedial action for these ponds very apparent. Both ponds were statistically sampled, and the sludge and clay layers in these ponds were completely characterized. Cement stabilization was chosen as the treatment method for processing these pond sludges. Laboratory-scale cement fixation studies were performed to develop a grout formulation that would allow the Sludge Treatment Facility (STF) at ORGDP to stabilize hazardous wastes so that they would meet or exceed applicable compressive strength and leachability requirements and thus qualify for delisting from hazardous to nonhazardous. A process flow sheet was developed that detailed operating procedures and equipment requirements for the handling of waste materials from the raw sludge to the final hardened concrete forms. Special problems associated with handling, pumping, processing, and moving of the raw sludge, wet concrete, and cast concrete have been investigated. The STF has been in operation since April 1987 stabilizing sludge from K-1407-C pond. Problems and operating experiences to date at the STF are discussed in this report. 18 refs., 5 figs., 32 tabs.

• Research Organization: Oak Ridge Gaseous Diffusion Plant, TN (USA)
• DOE Contract Number: AC05-84OT21400
• OSTI ID: 6814494
• Report Number(s): K/QT-199; ON: DE89000669
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BUILDING MATERIALS
CEMENTS
CLASSIFICATION
COMPARATIVE EVALUATIONS
COMPILED DATA
COMPLIANCE
DATA
DECOMMISSIONING
DISSOLUTION
GASEOUS DIFFUSION PLANTS
GROUND DISPOSAL
GROUTING
HAZARDOUS MATERIALS
INDUSTRIAL PLANTS
INFORMATION
ISOTOPE SEPARATION PLANTS
LEACHING
LOW-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
NUMERICAL DATA
ORNL
PONDS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REGULATIONS
SAMPLING
SEPARATION PROCESSES
SETTLING PONDS
SLUDGES
SURFACE WATERS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES