Cleaning Out the World: the destruction of chemical weapons

MV Cape Ray that destroyed Syria's chemical weapons. Image of 2014 from wikipedia

Chemical weapons are banned by treaties, though that hasn’t stopped a few countries from maintaining stockpiles. Right now it’s possible to clean up that mess, but it’s a tremendous amount of work, and expensive work too….[DARPA] has in the works the “Agnostic Compact Demilitarization of Chemical Agents” or ACDC. Their goal: a machine that turns chemical-weapon-tainted soil into fertile soil, that can fit roughly in a shipping container, and is a fraction of the cost to process the chemicals today…

After chemical weapons were used in the Syrian civil war, the Syrian government, under international supervision, revealed their stockpile and turned it over to an international team. That team, using the U.S. Navy’s Cape Ray ship, incinerated and neutralized tons of chemical agents over the better part of a year, while at sea. The cost was around $250 million.
[Southwest Research Institute]’s approach combines a commercially available reforming-engine technology that, along with local soil, can convert organic molecules to non-hazardous components. 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. The SwRI process is agnostic to the chemical to be degraded, and is a much greener process than either conventional hydrolysis or incineration, both of which are logistically intensive and require subsequent secondary treatment of large amounts of hazardous waste.
The project is only nine months along. Next year, the team is hopeful they’ll have a demonstration of the technology, and then, when the project’s 36 months are up, they are aiming for a chemical cleaning tool just 1 percent as expensive as the Cape Ray mission. The cost of ACDC, if all goes according to plan, is expected to be just $2.6 million.

Excerpt from Kelsey D. Atherton, DARPA WANTS TO TRANSFORM CHEMICAL WAR SITES INTO FERTILE SOIL, Popular Science, May 12, 2016

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