TABLE 1-2 Site-Generated Waste Streams

Waste Stream

Description

MPF metal

Metal parts after incineration

MPF residue

MPF maintenance residue

LIC slag

Slag generated in LIC secondary chamber

LIC refractory

Produced during refractory change-out

DFS heated discharge conveyor ash

Produced during incineration of munitions

DFS cyclone residue

Produced during incineration of munitions

DFS refractory

Produced during refractory change-out

Brine salts

Produced during the evaporation of scrubber brine

Brine tank sludge

Produced during the cleanout of tanks that store scrubber brine

Waste citric acid

Generated during the cleaning of the brine reduction evaporators and PAS

Waste hydrochloric acid

Generated during the cleaning of the brine reduction evaporators and PAS

Demister filters

Produced during the change-out of demister filters

Spent decontamination solution (decontamination neutralization solution)

Produced from site decontamination and laboratory operations

Waste acid solution

Generated at the laboratory

Waste organic solvents

Generated at the laboratory

DPE suits

Generated during toxic operations

Wood pallets

Producing during the unpacking of on-site containers and munitions

Spent activated carbon

Produced during the change-out of the carbon filters

Miscellaneous metal parts

Worn-out equipment and parts

Clean-up materials

Miscellaneous materials generated during the decontamination and maintenance of the plant

Spill clean-up materials

Generated during single-substance spill response clean-up

Trash, debris, and PPE

Produced during maintenance activities

Brine reduction area baghouse debris

Produced during maintenance activities

MPF brick

MPF refractory replacement

MPF vacuum ash

Residue removed from MPF burn trays and munitions

Cleaning solutions

Cleaning of sample equipment

PAS solids

Solids collected in PAS filters and removed from quench towers and scrubbers

NOTE: DFS, deactivation furnace system; DPE, demilitarization protective ensemble; LIC, liquid incinerator; MPF, metal parts furnace; PAS, pollution abatement system; and PPE, personal protective equipment.

SOURCE: UDEQ, 2004.

forced air handling for all enclosed buildings on-site. Banks of activated carbon are used to capture and remove any trace-level residual semivolatile organics in the exhaust gases and air streams before release to the environment. The carbon beds are continuously monitored for organic breakthrough between individual trays of carbon, indicating when the trays need to be changed. This happens when the carbon is saturated to a specified practical limit, or is said to be “spent.” The beds containing spent carbon are emptied and refilled with fresh carbon. Spent activated carbon waste streams are generated at chemical agent disposal facilities using either the baseline incineration system or the neutralization process. The spent carbon may be considered hazardous or nonhazardous depending on the organic contaminants adsorbed, but they may also be classified as hazardous as a result of state regulation or site-specific permit conditions. In addition, prefilters, high-efficiency particulate air filters, and demister candles, all containing carbon, are also monitored and replaced as necessary. Spent carbon disposal options depend on contaminant type, contaminant level, and specific facility permit requirements. In at least two facilities, TOCDF and UMCDF, mustard agent containing mercury will be treated and will result in mercury-contaminated spent carbon in the PFS. Any such carbon will require special treatment and disposal techniques.5

5

The TOCDF incineration system does not currently contain a PFS. Until a PFS is installed, TOCDF controls its mercury emissions below permit limits by processing only material low in mercury contamination.



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