DARPA To Test ACDC Tech Against Actual Chemical Warfare Agents In Months

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  • 07:24 AM, May 1, 2017
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DARPA To Test ACDC Tech Against Actual Chemical Warfare Agents In Months
DARPA's new developmental field-deployable, chemical warfare agent-scrubbing system is capable of neutralizing poison gas-contaminated soil

The US Defense Advanced Research Projects Agency (DARPA) will test the Agnostic Compact Demilitarization of Chemical Agents (ACDC) program technology scrubber with the Tactical Plasma Arc Chemical Warfare Agents Destruction System (PACWADS) against actual chemical warfare agents in the coming months.

ACDC technology demonstrator is capable of removing bulk stores of chemical warfare agents (CWA) without creating any hazardous waste by-products.

The field-deployable system for onsite neutralization of CWA has demonstrated waterless soil-scrubbing technology that safely neutralized toxic chemicals simulating sarin, soman, and mustard agents, DARPA said in a statement in April this year.

Tyler McQuade, DARPA program manager said, “These successful tests validated a critical component of the ACDC concept—a water-free, non-hazardous, soil-based process for onsite destruction of deadly chemicals. We now look forward to testing the ACDC scrubber with the PACWADS against actual chemical warfare agents in the coming months.”

The technology was tested in conjunction with the PACWADS, a thermal treatment system already under development for use by U.S. military Services. That system uses a high-temperature plasma torch to convert highly toxic chemicals into relatively benign components, and then uses a water-based capture process to eliminate the last traces of contaminants.

For the ACDC experiment, the PACWADS was modified to eliminate the water scrubber and connect instead to DARPA’s soil-based scrubber system, which captured and converted the toxic CWA decomposition products and resulting acid gases into non-hazardous salts.

An ability to use local soil from the site where CWA stores have been discovered eliminates the logistical burden of supplying water to such sites, which are anticipated to be remote, and then having to transport resulting liquid wastes to a treatment facility. The soil used in the DARPA process remains non-hazardous and could be safely returned to the environment.

Following testing of the soil scrubber against actual CWA, which is anticipated for this spring or summer, DARPA plans to continue to develop a novel approach for the initial destruction process that would be simpler and more economical than the PACWADS torch. That system aims to use an internal combustion “reforming engine.” The engine is designed such that, as part of the destruction process, the organic molecules act as a fuel and efficiently generate recoverable energy that can be converted to electricity, eliminating the need for power sources in remote locations.

Ultimately, ACDC envisions the complete CWA destruction and soil-scrubbing system to fit in the back of a standard military vehicle.

 

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