By National Research Council, Division on Engineering and Physical Sciences, Board on Army Science and Technology, Committee on Review and Evaluation of Alternative Technologies for Demilitarization of Assembled Chemical Weapons: Phase II

By course of Congress, the U.S. division of Defense's (DoD's) application supervisor for the Assembled Chemical guns evaluation (PMACWA) requested the nationwide study Council (NRC) Committee on overview and review of different applied sciences for Demilitarization of Assembled Chemical guns: section II (the ACW II committee) to behavior an self sufficient clinical and technical overview of 3 replacement applied sciences (referred to as Demo II) into consideration for the destruction of assembled chemical guns at U.S. chemical guns garage websites. the 3 applied sciences are AEA applied sciences Corporation's (AEA's) electrochemical oxidation method; the transpiring-wall supercritical water oxidation and gasphase chemical aid approaches of Foster Wheeler/Eco Logic/Kvaerner (FW/EL/K); and Teledyne-Commodore's solvated electron approach. each one of those applied sciences represents a substitute for incineration for the full destruction of chemical brokers and linked full of life fabrics. The demonstration checks have been licensed by means of the PMACWA after an preliminary evaluate of every know-how. the result of that preliminary review have been reviewed through an past NRC committee, the Committee on overview and assessment of different applied sciences for Demilitarization of Assembled Chemical guns (the ACW I committee).

For the current evaluation, the committee carried out an indepth exam of every expertise provider's info, analyses, and demonstration attempt effects for the serious parts verified. This evaluation record vitamins the ACW I file and considers the demonstration functionality of the Demo II candidate applied sciences and their readiness for development to pilot-scale implementation. simply because trying out in those components is ongoing, the committee made up our minds to chop brief its fact-finding efforts for enter to this file as of March 30, 2001.

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Extra resources for Evaluation of demonstration test results of alternative technologies for demilitarization of assembled chemical weapons: a supplemental review

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The mustard demonstration tests were very encouraging and showed that the process is ready for the next scale-up. Finding PA-3. The effectiveness of ultraviolet/hydrogen peroxide oxidation in reducing Schedule 2 compounds to an acceptably low level has not been demonstrated. , the fluid was black and nontransparent). SUPPLEMENTAL FINDINGS AND RECOMMENDATION Finding PA-2. The nerve agent demonstration tests had serious problems. However, if the previous tests at the technology provider’s laboratory and the results of the demonstration tests are combined, the aggregate results are inconclusive.

Source: Adapted from Parsons-AlliedSignal, 1999a. 20 ALTERNATIVE TECHNOLOGIES FOR DEMILITARIZATION OF ASSEMBLED CHEMICAL WEAPONS of two streams, hydrolyzed HD and hydrolyzed tetrytol, that corresponded to the agent/energetics combination from an M60 105-mm artillery shell. Nutrients (ammonium sulfate or ammonium bicarbonate) were added to supply additional nitrogen. Fenton’s reagent (30 percent H2O2 plus FeSO4) was added to the flocculation product after biotreatment. ) The products of the HD biotreatment process are listed below: • a wet sludge (biosolids plus a high percentage of brine) • brine from the biotreatment system, concentrated by a reverse osmosis unit (which will not be included in the final plant design) • depleted air from the bioreactors that has been treated in a CATOX unit (to oxidize organics carried over as spray or vapor) and then passed through a dry caustic scrubber and a carbon filter The major criterion used to judge the efficacy of the bioreactor was the destruction of Schedule 2 compounds in HD hydrolysate and of tetrytol hydrolysate products in the feed.

Small quantities of chromium in the gaseous emissions from the SCWO reactor are of potential concern for two reasons. First, it reinforces the importance of demonstrating the reliable operation of the platinum-lined reactor; second, it illustrates the need to test gaseous emissions from the SCWO system for particulates, as well as for gaseous contaminants. 3. 5 micrograms, respectively, during a five-hour test period for each of three test runs (General Atomics, 1999a). If the reported emissions pertain to chromium in the hexavalent form, the committee has serious concerns.

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