Criterion 1: Demonstration that 125 EBR-II assemblies can be treated in a fuel-conditioning facility (FCF) within 3 years, with a throughput rate of 16 kg/month for driver assemblies sustained for a minimum of 3 months and a blanket throughput rate of 150 kg per month sustained for 1 month.

Specific goals to meet criterion 1:

  1. Freeze process modifications and operating parameters while demonstrating a continuous throughput of 16 kg of driver uranium for 3 consecutive months.

  2. Demonstrate the capability to electrorefine approximately 150 kg of blanket spent fuel in 1 month.

  3. Distill the electrolyte from ER cathode products through the cathode processor in an FCF and blend the resulting ingot with depleted uranium in the casting furnace to produce a low-enriched uranium storage ingot.

  4. Specify acceptable operating parameters and throughput for the cathode processor to meet uranium product specifications and ER production rates of 16 kg of driver uranium for 3 consecutive months.

  5. Specify acceptable casting-furnace operating parameters for producing low-enriched uranium from 16-kg driver uranium per month for 3 consecutive months.

  6. Cast three batches of irradiated cladding hulls (two driver assemblies per batch) into a typical metal waste form (stainless steel -15 percent zirconium).

  7. Process 3 kilograms of salt containing approximately 6 weight % fission products into 10 ceramic waste samples.

Criterion 2: Quantification (for both composition and mass) of recycle, waste, and product streams that demonstrate projected material balance with no significant deviations.

Specific goals to meet criterion 2:

  1. Develop uranium product specifications with range of acceptable impurities: plutonium, neptunium, technetium-99 and ruthenium-106. Specify process-operating parameters for uranium ingots that meet uranium specifications.

  2. Develop metal waste specifications that are based on performance characterization results of small samples with variations in the principal constituents: zirconium, uranium, technetium, plutonium, neptunium, and noble metals. Determine performance characterization with electrochemical technique, corrosion tests, vapor hydration tests, and attribute tests.

  3. Develop metal waste process specifications for major process variables: operating temperatures, hold time, and cooling rate.

  4. Develop ceramic waste specifications that are based on performance characterization results of samples with principal constituent variations: glass, fission products, uranium, and plutonium. Determine performance characteristics with attribute, characterization, accelerated, and service condition tests.

  5. Develop ceramic waste process specifications for major process variables: free chloride, zeolite moisture content, and chloride per unit cell.

  6. Quantify volume of low-level and transuranic waste generation under standard operating conditions.

  7. Return the cathode processor condensate to the individual ERs during the 16-kg driver per month for 3 months and 150 kg blanket per month operations.

  8. Specify unit process operations for metal spent fuel treatment, uranium ingot production, and waste form production.

  9. Estimate mass balances for uranium, transuranics, sodium, and key fission products for overall process.



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