National Academies Press: OpenBook

Disposal of Legacy Nerve Agent GA and Lewisite Stocks at Deseret Chemical Depot: Letter Report (2009)

Chapter: ATTACHMENT C PROCESS FLOW DIAGRAMS FOR GA AND LEWISITE PROCESSING AND SCHEMATIC DIAGRAM FOR ATLIC POLLUTION ABATEMENT SYSTEM (

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Suggested Citation:"ATTACHMENT C PROCESS FLOW DIAGRAMS FOR GA AND LEWISITE PROCESSING AND SCHEMATIC DIAGRAM FOR ATLIC POLLUTION ABATEMENT SYSTEM (." National Research Council. 2009. Disposal of Legacy Nerve Agent GA and Lewisite Stocks at Deseret Chemical Depot: Letter Report. Washington, DC: The National Academies Press. doi: 10.17226/12763.
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Suggested Citation:"ATTACHMENT C PROCESS FLOW DIAGRAMS FOR GA AND LEWISITE PROCESSING AND SCHEMATIC DIAGRAM FOR ATLIC POLLUTION ABATEMENT SYSTEM (." National Research Council. 2009. Disposal of Legacy Nerve Agent GA and Lewisite Stocks at Deseret Chemical Depot: Letter Report. Washington, DC: The National Academies Press. doi: 10.17226/12763.
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Page 26
Suggested Citation:"ATTACHMENT C PROCESS FLOW DIAGRAMS FOR GA AND LEWISITE PROCESSING AND SCHEMATIC DIAGRAM FOR ATLIC POLLUTION ABATEMENT SYSTEM (." National Research Council. 2009. Disposal of Legacy Nerve Agent GA and Lewisite Stocks at Deseret Chemical Depot: Letter Report. Washington, DC: The National Academies Press. doi: 10.17226/12763.
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Page 27

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ATTACHMENT C PROCESS FLOW DIAGRAMS FOR GA AND LEWISITE PROCESSING AND SCHEMATIC DIAGRAM FOR ATLIC POLLUTION ABATEMENT SYSTEM (PAS) Exhaust 1. GA TC drain (after loading into the glovebox) Liquid GA Liquid GA Flue gas Scrubbed flue gas TC Pump LIC LIC PAS Stack primary secondary Exhaust 2. GA TC decon (after draining to the LIC) 100 gal. Spent Spent Spent Flue gas Scrubbed rotate 18% NaOH decon decon decon flue gas TC Pump Decon LIC PAS Stack tank secondary 3. GA TC triple rinse (after decontamination) 100 gal. Spent Spent Disposal rotate water rinse rinse (if accept) TC Pump Analysis for GA FIGURE C-1 ATLIC facility process flow diagram for GA. SOURCE: Jim Clark, Planning and Project Control Manager, URS, “GA/lewisiteArea Ten Liquid Incinerator (ATLIC) facility design review,” Presentation to the committee, July 21, 2009. -25-

Exhaust 1. L TC drain (after loading into the glovebox) Liquid L Liquid L Liquid L Flue gas Scrubbed flue gas TC Pump Agent LIC LIC PAS Stack tank primary secondary Exhaust 2. L TC acetic decon (after draining to the LIC) Pump 100 gal. Spent Spent Spent Flue gas rotate 20% acetic acetic acetic acetic Flue gas acid TC acid acid Acetic acid LIC LIC PAS Stack acid primary secondary tank 3. L TC nitric rinse (after decontamination) Analysis Pump for L 100 gal. Spent Spent Spent Clean Reuse rotate 7M nitric nitric nitric nitric nitric (if accept) acid TC acid acid Nitric acid acid Nitric acid acid regeneration tank FIGURE C-2 ATLIC facility process flow diagram for lewisite. SOURCE: Jim Clark, Planning and Project Control Manager, URS, “GA/lewisiteArea Ten Liquid Incinerator (ATLIC) facility design review,” Presentation to the committee, July 21, 2009. -26-

Plant air Fabric filter Activated carbon storage & feed Exhaust stack Flue gas Carbon filter unit reheater Scrubber towers Offgas from furnace Induced draft fan Process water Venturi Water quench scrubber Entrainment separator Dry discharge OGTS liquid sump NaOH to disposal Scrubber liquid Venturi scrubber recirculation pump recirculation pump Scrubber liquor air Scrubber cooled exchanger blowdown Liquid chiller FIGURE C-3 PAS schematic flow diagram for the ATLIC facility. SOURCE: Jim Clark, Planning and Project Control Manager, URS, “GA/lewisiteArea Ten Liquid Incinerator (ATLIC) facility design review,” Presentation to the committee, July 21, 2009. -27-

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The National Research Council of the National Academies established a study committee to assess the disposal of stocks of legacy nerve agent GA and lewisite at Deseret Chemical Depot. Specifically, the Committee on Disposal of Legacy Nerve Agent GA and Lewisite Stocks at Deseret Chemical Depot reviewed information provided to it on the 50 percent design of the Area Ten Liquid Incinerator (ATLIC) facility.

The committee focused on differences between the process design being used for the ATLIC facility and those used at the Tooele Chemical Agent Disposal Facility (TOCDF), which has operated successfully for over a decade in campaigns to destroy nerve agents GB and VX and mustard agent. This letter report provides the technical information necessary to support the general and specific findings and recommendations of the committee.

This analysis examines the process design and procedural steps to be used for treating GA and lewisite at the Deseret Chemical Depot; provides an assessment of the process design which includes a new incinerator and associated pollution abatement system to be tailored to the requirements for treating the GA and lewisite; and provides an assessment of the process design to determine the system's ability to reduce arsenic and mercury emissions to within the Maximum Achievable Control Technology (MACT) new source regulatory limits.

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