Interim Design Assessment for the Blue Grass Chemical Agent Destruction Pilot Plant (2005) / Chapter Skim
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5 Treatment of Hydrolysates and Residual Wastes
5 Treatment of Hydrolysates and Residual Wastes
Pages 48-57
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From page 48... ...
Other miscellaneous materials, desig- particular, most organic species, including alkanes, nated secondary wastes, are to be treated in are completely soluble in supercritical water. In addi the MPT, hydropulped and treated by SCWO, tion, molecular oxygen is fully miscible in super or, if uncontaminated, shipped off-site for critical water.
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From page 49... ...
fluids DSH/SCWO MPT or propylene glycol Liquid, noncombustible Hydraulic Used water-based Misc. fluids DSH/SCWO MPT hydraulic fluid Solid, combustible Carbon Regular charcoal Carbon DSH/SCWO MPT from MDB filters Solid, combustible Carbon Metal impregnated Cu, Zn, Cr DSH/SCWO MPT charcoal from mask filters Solid, combustible Cellulosic Wood from Cellulose-based DSH/SCWO MPT maintenance materials cribbing Solid, combustible Cellulosic Wood munitions Cellulose-based DSH/SCWO MPT pallets and boxes materials Solid, combustible Elastomer Butyl boots Butyl rubber DSH/SCWO MPT Solid, combustible Elastomer Toxicological Butyl rubber DSH/SCWO MPT agent protective gear Solid, combustible Halogenated LSSa and equipment Neoprene DSH/SCWO MPT hoses Solid, combustible Halogenated Conveyer belt PVC DSH/SCWO MPT material or MPT Solid, combustible Halogenated DPE face shield PVC DSH/SCWO MPT Solid, combustible Halogenated DPE suits PVC DSH/SCWO MPT Solid, combustible Halogenated Face mask for PVC DSH/SCWO MPT Tyvek suit Solid, combustible Halogenated LSS and equipment PVC DSH/SCWO MPT hoses (reinforced)
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From page 50... ...
ment of the reactor liner is planned for the SCWO In Step 3, the flow of waste feed is started at a low units at the Blue Grass Chemical Agent Destruction flow rate and slowly increased, while water flow and Pilot Plant (BGCAPP)
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From page 51... ...
Blending of agent pressure-balanced titanium liner. In the past, the and energetics hydrolysates appears to reduce outer shells of test reactors were constructed of corrosion rates, largely due to dilution of the Inconel 617.
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From page 52... ...
Air oxidant flow 790 800 700 1Kevin Downey, Project Engineer, Bechtel Parsons Blue Grass SOURCE: Kevin Downey, Project Engineer, Bechtel Parsons Team, "SCWO system status," briefing to the committee on NoBlue Grass Team, "Supercritical water oxidizer (SCWO) system vember 17-19, 2004.
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From page 53... ...
Very little challenging materials for treatment by this technology. wear was observed with the DFT valve after 114 hours High corrosion rates, the threat of reactor plugging by in service.
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From page 54... ...
The Bechtel Parsons Blue Grass Team their maintenance. plans to use a Cr-Mo steel for fabricating the outer shell of the SCWO reactors.
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From page 55... ...
SOURCE: Adapted from the Bechtel Parsons Blue Grass Team responses on May 2, 2005, to committee questions of April 25, 2005. Offgas leaving the MPTs flows to a flameless bulk Since it cannot be guaranteed that the collected paroxidizer, where heated air and natural gas are mixed ticulates, such as paint and rust particles from projecwith the offgas to ensure oxidation of volatile and tiles, have undergone decontamination to make them semivolatile organic compounds in the bulk oxidizer suitable for unrestricted release, they will be periodieffluent.4 The bulk oxidizer unit operates at 2000°F, cally fed back to the MPT.
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From page 56... ...
SECONDARY WASTES Recommendation 5-6. The bulk oxidizer unit design needs to be resolved as quickly as possible to assure The Bechtel Parsons BGCAPP team has developed that all necessary supporting equipment is identified a matrix of secondary wastes expected to be generated and that the MDB footprint can accommodate the re- during the agent destruction campaign or during dissulting OTM system.
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From page 57... ...
TREATMENT OF HYDROLYSATES AND RESIDUAL WASTES 57 TABLE 5-3 General Types of BGCAPP Secondary Wastes to Be Managed Waste Type Example Aqueous liquids Spent decontamination washdown fluids Other noncombustible liquids Ethylene and propylene glycols, water-based hydraulic fluids Combustible liquids Oil-based lubricants Combustible solids Filters, textiles, paper, rope, butyl boots, nitrile gloves, gaskets, tygon tubing Metallic solidsa Canisters, lead solder, steel gratings, and ladders Solids containing metals and organicsa Wire and cable, hoses Miscellaneous noncombustible solidsa Rubble, wallboard, glass fiber insulation, kaolin, vermiculite Unknown or mixed solidsa Heat tracing, filter cake, sludge aThese types of wastes, which are generated during operations and closure, will be treated in the MPT or sent to an appropriate treatment, storage, and disposal facility. SOURCE: Adapted from Bechtel Parsons Blue Grass Team response on May 7, 2005, to the committee's request for information on February 2, 2005.
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