A portable local exhaust hood system used to sample one-ton containers (TCs) previously filled with chemical warfare munitions
Tennessee Valley Authority (TVA), Muscle Shoals, Alabama, by contract with the Department of the Army, Rocky Mountain Arsenal (RMA), Denver, Colorado, sampled and verified the decontamination level of 2,354 empty one-ton containers (TCs) previously used to store chemical warfare munitions. The TCs had previously been chemically and/or thermally decontaminated and were stored on RMA awaiting removal and disposal. The size and weight of the TCs prohibited placing them inside an enclosure during sampling. To enable sampling containers in place, a portable local exhaust hood was devised to protect sampling personnel and to prevent the release of any residual chemical agent vapors to the environment. Agent vapors captured by the hood were scrubbed through a 200-pound bed of activated charcoal before being released to the ambient environment. Engineers and work crews on-site in Denver conceived the hood design and tested three prototypes before obtaining a functional unit. Crafts persons in Muscle Shoals fabricated the hood designs and made modifications. Over a five-month period in the summer of 1990, TVA successfully sampled 2,354 TCs for four chemical agents with no personnel exposures and no release of agent into the environment. Residual contamination was identified in 547 TCs.
- OSTI ID:
- 215497
- Report Number(s):
- CONF-951139-; TRN: IM9618%%181
- Resource Relation:
- Conference: 16. hazardous waste conference and exhibition: new frontiers in hazardous waste, Washington, DC (United States), 6-8 Nov 1995; Other Information: PBD: 1995; Related Information: Is Part Of Superfund 16: Conference and exhibition proceedings. Volume 2; PB: 817 p.
- Country of Publication:
- United States
- Language:
- English
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