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Development of a plutonium-239 recovery incinerator

Description: A Plutonium-239 Recovery Incinerator is being developed for the Savannah River Plant (SRP) to reduce the volume of solid glovebox waste and to allow recovery of Pu-239 from the waste. The process will also allow treatment of some waste materials that are not certifiable for disposal at the Waste Isolation Pilot Plant (WIPP). It will consist of two electrically heated combustion chambers (furnace and afterburner) and a dry filtration off-gas system. A unique feature of the process is that it uses pyrohydrolysis to produce an ash that is amenable to Pu recovery through nitric acid/HF dissolution. A series of thermogravimetric (TGA) analyses have been performed to characterize potential incinerator feed materials. A functioning furnace mockup was built and operated to demonstrate electrically-heated pyrohydrolysis operation. 8 refs., 4 figs.
Date: January 1, 1988
Creator: Williams, S & Charlesworth, D L
Partner: UNT Libraries Government Documents Department

Waste immobilization process development at the Savannah River Plant

Description: Processes to immobilize various wasteforms, including waste salt solution, transuranic waste, and low-level incinerator ash, are being developed. Wasteform characteristics, process and equipment details, and results from field/pilot tests and mathematical modeling studies are discussed.
Date: January 1, 1986
Creator: Charlesworth, D L
Partner: UNT Libraries Government Documents Department

Demonstration of a steam jet scrubber off-gas system and the burner efficiency of a mixed waste incinerator facility

Description: A full-scale incinerator system, the Consolidated Incineration Facility (CIF), is being designed to process solid and liquid low-level radioactive, mixed, and RCRA hazardous waste. This facility will consist of a rotary kiln, secondary combustion chamber (SCC), and a wet off-gas system. A prototype steam jet scrubber off-gas system has been tested to verify design assumptions for the CIF. The scrubber wastewater will be immobilized in a cement matrix after the blowdown has been concentrated to a maximum solids concentration in a cross-flow filtration system. A sintered metal inertial filter system has been successfully tested. Burner efficiency was tested in a high intensity vortex burner, which destroyed the hazardous waste streams tested.
Date: January 1, 1988
Creator: Holmes, H & Charlesworth, D L
Partner: UNT Libraries Government Documents Department

Immobilization of incinerator ash in a concrete matrix

Description: The ashcrete process will solidfy ash generated by the consolidated Incinerator Facility (CIF) at the Savannah River Plant (SRP). The ashcrete unit produces ashcrete, a stable cement-based wasteform, by remotely adding cement and water and tumbling drums of ash. Ashcrete product homogeneity, temperature rise during setting, and compressive strength were measured and product formulations were developed for several nonradioactive dry ash types. Saturation level and wet and dry ash densities for several ash types have been measured. Preliminary mixture formulations for the anticipated ash were tested. A proof-of-principle test was performed using a mockup of the CIF ash system. Finally, mechanical modifications to prepare the unit for use with the CIF and to ensure reliable operation are being implemented. 4 refs., 5 figs., 5 tabs.
Date: January 1, 1988
Creator: Simpson, R S & Charlesworth, D L
Partner: UNT Libraries Government Documents Department

Operational testing of an electrically fired Pu-238 waste incineration process

Description: Combustible /sup 238/Pu waste is generated from normal operation and decommissioning activity at the Savannah River Plant and is being retrievably stored at the Plant. An electrically fired, two-stage incineration process is being developed to use incineration to process and recovery plutonium from the waste. A prototype incinerator is being tested to assess its capability to be remotely operated and maintained. Technical development is focusing on continuous feeding, vacuum control, remote operability and mechanical integrity of the system, ash burnout, and life of the belt in the primary incinerator chamber. 6 figs., 5 tabs.
Date: January 1, 1987
Creator: Holmes, H. & Charlesworth, D.L.
Partner: UNT Libraries Government Documents Department

Design of a Pu-238 Waste Incineration Process

Description: Combustible Pu-238 waste is generated as a result of normal operation and decommissioning activity at the Savannah River Plant and is being retrievably stored there. As part of the long-term plan to process the stored waste and current waste in preparation for future disposition, a Pu-238 incineration process is being cold-tested at Savannah River Laboratory (SRL). The incineration process consists of a continuous-feed preparation system, a two-stage, electrically fired incinerator, and a filtration off-gas system. Process equipment has been designed, fabricated, and installed for nonradioactive testing and cold run-in. Design features to maximize the ability to remotely maintain the equipment were incorporated into the process. Interlock, alarm, and control functions are provided by a programmable controller. Cold testing is scheduled to be completed in 1986.
Date: May 29, 2001
Creator: Charlesworth, D.L.
Partner: UNT Libraries Government Documents Department

Demonstration of remotely operated TRU waste size reduction and material handling equipment

Description: The Savannah River Laboratory (SRL) is developing remote size reduction and material handling equipment to prepare /sup 238/Pu contaminated waste for permanent disposal at the Waste Isolation Pilot Plant (WIPP) in New Mexico. The waste is generated at the Savannah River Plant (SRP) from normal operation and decommissioning activity and is retrievably stored onsite. A Transuranic Waste Facility for preparing, size-reducing, and packaging this waste for disposal is scheduled for completion in 1995. A cold test facility for demonstrating the size reduction and material handling equipment was built, and testing began in January 1987. 9 figs., 1 tab.
Date: January 1, 1988
Creator: Looper, M G & Charlesworth, D L
Partner: UNT Libraries Government Documents Department

Design of a Pu-238 waste incineration process

Description: Combustible /sup 238/Pu waste is generated as a result of normal operation and decommissioning activity at the Savannah River Plant and is being retrievably stored at the Plant. As part of the long-term plan to process the stored waste and current waste in preparation for future disposition, a /sup 238/Pu incinceration process is being cold-tested at SRL. The incineration process consists of a continuous-feed preparation system, a two-stage, electrically fired incinerator, and a filtration off-gas system. Process equipment has been designed, fabricated, and installed for nonradioactive testing and cold run-in. Design features to maximize the ability to remotely maintain the equipment were incorporated into the process. Interlock, alarm, and control functions are provided by a programmable controller. Cold testing is scheduled to be completed in 1986.
Date: January 1, 1985
Creator: Charlesworth, D.L. & McCampbell, R.B.
Partner: UNT Libraries Government Documents Department

Design and operation of a remotely operated plutonium waste size reduction and material handling process

Description: Noncombustible /sup 238/Pu and /sup 239/Pu waste is generated as a result of normal operation and decommissioning activity at the Savannah River Plant, and is being retrievably stored there. As part of the long-term plant to process the stored waste and current waste for permanent disposal, a remote size reduction and material handling process is being cold-tested at Savannah River Laboratory. The process consists of a large, low-speed shredder and material handling system, a remote worktable, a bagless transfer system, and a robotically controlled manipulator. Initial testing of the shredder and material handling system and a cycle test of the bagless transfer system has been completed. Fabrication and acceptance testing of the Telerobat, a robotically controlled manipulator has been completed. Testing is scheduled to begin in 3/86. Design features maximizing the ability to remotely maintain the equipment were incorporated. Complete cold-testing of the equipment is scheduled to be completed in 1987.
Date: January 1, 1986
Creator: Stewart, III, J A & Charlesworth, D L
Partner: UNT Libraries Government Documents Department