Remediation of Buried Chemical Warfare Materiel (2012) / Chapter Skim
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4 Technologies for Cleanup of CWM Sites
4 Technologies for Cleanup of CWM Sites
Pages 49-65
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From page 49... ...
, or and evaluation of the suspected CWM and package it in a • Static detonation chamber (SDC)
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From page 50... ...
OSHA-approved modifications) have been demonstrated The geophysical sensors used to detect MEC CWM are to be adequate on numerous non-stockpile CWM projects, the same as those used for detecting conventional (high- including projects at Camp Sibert, Alabama; Spring Valley, explosive)
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From page 51... ...
. MINICAMS was used at Camp Sibert, Alabama, with mixed results.5 It is expected that a Chemical Materiel Project (NSCMP)
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From page 52... ...
Gottschalk, PMNSCM, "Non-Stockpile Chemical Materiel ticular facility involved but is often set at either the short-term exposure limit Project Status and Update," presentation to the committee on September (STEL) or at the short-term limit (STL)
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From page 53... ...
Hoffman, Chief, Operations Team, NSCMP, "Non riel Project Status and Update," presentation to the committee on September Stockpile Chemical Materiel Project Equipment and Capabilities Over27, 2011. view," presentation to the committee on September 27, 2011.
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From page 54... ...
Noble, Project Manager, Spring Valley, Baltimore District, U.S. riel Project Program Status and Update," presentation to the NRC Commit - Army Corps of Engineers, comments to committee members during the tee on Chemical Demilitarization on November 30, 2011.
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From page 55... ...
BITMAP Gottschalk, PMNSCM, "Non-Stockpile Chemical Materiel Project Program Status and Update," presentation to the committee on September 27, 2011. FIGURE 4-2 A typical digital radiography and computed tomography scan.eps FIGURE 4-2 A typical DRCT scan.
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From page 56... ...
The electrons reemit the chemical warfare materiel. Developed by Idaho National absorbed energy as infrared light, which is detected at an Laboratory, the PINS system has been patented and is com angle perpendicular to the light source.
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From page 57... ...
Sandia The remaining two systems, the TDC and the DAVINCH, National Laboratories has built five to date, for on-site are similar in that they both use external charges to access destruction of recovered chemical weapons or treatment the agent cavity in a sealed chamber (as does the EDS) , but of other chemical warfare materiel.
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From page 58... ...
filter with hydrated lime time; in-line gas scrubber IONEX filter containing HEPA or sodium bicarbonate with NaOH washdown to filter, sulfur-impregnated for acid neutralization; neutralize the gas; sulfur- carbon, and activated carbon; carbon adsorption system; impregnated carbon and baghouse filter and HEPA for particulatesc ceramic filter and HEPA for activated carbon; HEPA particulates filters for particulates Waste streams Liquid neutralent and Exhaust gas, metal Metal fragments, exhaust Metal fragments, scrubbed rinsate, scrap metal fragments, gravel dust, gas, dust, activated carbon, off-gas, dust, salts, activated (munition fragments)
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From page 59... ...
Changes can be made to speed up some of tion systems, such as the Dynasafe static detonation chamber, the steps in the EDS process -- for example, steam injection the CH2M HILL transportable detonation chamber, and the to reduce vessel heating time -- but it will always be slow DAVINCH system, the EDS-1 and -2 have long cycle times. relative to the TDC and DAVINCH.
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From page 60... ...
As shown in the figure, the detonation chamber is fol • Processing munitions in overpacks. Use of improved lowed by an extensive pollution control system, includ linear shaped charges to cut through the overpack and ing a catalytic oxidizer, a heat exchanger, carbon filters, the munition was planned as of September 2011.
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From page 61... ...
FIGURE 4-5 Process flow in large mobile transportable detonation chamber (TC-60) .eps BITMAP There have been a number of lessons learned and upgrades ended with treatment of 144 mustard-filled munitions, many to the system, including the following:22 with heels.23 ECBC staff who observed its use in Columboola praised it as "elegant" to operate.24 There were no problems • Additional chamber floor protection was added.
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From page 62... ...
As of Sep- ated by controlled venting of loading chamber 2 and tember 1, 2011, this system had destroyed 2,322 munitions, the detonation chamber before beginning to empty consisting of normally configured and overpacked 4.2-in., the chamber. • 105-mm, and 155-mm mustard-filled rounds.26 Agent was escaping from one or more of the flange During operations at ANCDF, a number of problems with connections between the detonation chamber and the the system became evident, the most significant being agent thermal oxidizer.
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From page 63... ...
DAVINCH was • Agent was escaping from one or more of the flange developed to destroy Japanese chemical bombs, some con connections between the detonation chamber and the taining a mustard/Lewisite mixture and others containing thermal oxidizer. It was planned to inspect, measure, vomiting agents.
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From page 64... ...
The DAVINCH technology was used at Kanda Port in In addition to these transportable (but barely so) units, Japan to destroy recovered Second World War–era bombs Kobelco states that a lighter, more mobile version of containing chemical warfare materiel.
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From page 65... ...
The Secondary waste from EDS operations was stored at both project manager at Spring Valley reported that he received the Spring Valley and Camp Sibert sites and then shipped some questions and expressions of concern from the regulaoff-site.30,31 At both sites, the project managers followed tors and the community about the nature and amounts of the Army's general practice of treating the waste only to the reagents and waste entering and leaving the facility, but that this was "nothing really significant." Otherwise, there were no problems with waste storage 30Karl E Blankinship, FUDS Project Manager, Mobile District U.S.
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