Biodegradation of HT Agent from an Assembled Chemical Weapons Assessment (ACWA) Projectile Washout Study
Final rept. May 2003-2004
EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD RESEARCH AND TECHNOLOGY DIR
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In this study, HT agent, removed from a chemical round similar to the current stockpile stored at Pueblo Chemical Depot, was neutralized and the hydrolysate treated in a laboratory scale Immobilized Cell Bioreactor ICB. This study was designed as a first attempt to gather biotreatability data on neutralized HT agent from a projectile washout study. Previous studies have demonstrated treatability of HD agent from ton containers and washout studies but not the less refined HT agent. The neutralized HT agent was found to be treatable using an ICB reactor. Total organics removal, using HD agent from projectiles and ton containers, was less complete than previously studied. However, Schedule-2 removal efficiency was comparable to previous studies. The treatment of an off-spec batch of HT hydrolysate was more problematic in that it increased culture salt concentrations above an estimated optimal level and decreased total organics removal.
- Chemical, Biological and Radiological Warfare