Spent Carbon Drum Disposal

Moser Spent Carbon Drums Disposal: Nitration Branch generates the spent carbon drums from the manufacture of nitrate esters explosives. The water is run through a carbon system to remove nitrate esters to less than 10 parts per million. The water is then stored in an underground holding basin. There are six parallel drum trains of four 55- gallon carbon drums connected in series. The drums are filled with activated carbon to remove nitrate esters from the wastewater generated from nitration operations. Samples are taken from the carbon drum trains to test for nitrate ester levels to ensure that the waste water has no breakthrough. If the waste water analysis shows nitrate ester in excess of the permitted levels, the first drum in the chain is removed for disposal and the other three drums are each moved forward one place in the series and a new drum is put in the last place on the chain. The current carbon drums for disposal have been dewatered-pressurized with low air pressure to remove bulk water from the drum, leaving only the wetted carbon and contaminants in the drum. The carbon drums are then hooked up to a ventilation system and allowed to off-gas to vent the NOx emissions once the water is removed. The spent carbon is contaminated with nitrate esters and salts (Na2CO3, NaHCO3, Na2SO4 and NaNO3). The spent carbon is considered nonhazardous waste by the State of Maryland. Contractor shall pickup up to 100 spent carbon drums at NSWC IHD and transport to a facility for disposal as non-hazardous waste. Each drum is a 55-gallon steel drum. Shipment of the spent carbon drums offsite shall meet the Department of Transportation (DOT) requirements. The contractor is responsible for loading the spent carbon drums on the contractor’s truck and unloading the carbon drums to a facility for proper disposal. The contractor shall provide materials and bungs with vent for proper DOT requirements. The contractor shall provide equipment (forklift, pallet jacket, and/or truck with lift gate) for loading and unloading of the spent carbon drums. The contractor shall provide the over pack drums for proper shipment of any possible bulged and deheaded drums. The contractor is responsible for preparing all documentation for disposal (i.e. waste profiles, manifests, etc.)

Division 02 -

Existing Conditions, Hazardous Material Assessment, Site Remediation, Contaminated Site Material Removal, Asbestos Remediation, Asbestos Abatement, Removal and Disposal of Asbestos Containing Materials.