Air Clear LLC engineers developed and manufactured the first-ever transportable direct-fired rotary kiln incinerator used for soil/sludge remediation. The system required special considerations for mobility, waste feed and temperature control.
Client: US Army Toxic & Hazardous Materials Agency
Location: Savannah Army Depot, Savannah, Illinois USA
Background: During the manufacturing of explosives and propellants, the loading, assembly, and packing of munitions, large quantities of contaminated wastewater, i.e. “pink water," were disposed of into lagoons.
Problem: The water portion of these lagoons evaporated over time, leaving a heavily contaminated soil base. The level of contaminants threatened the water tables on-site.
Waste Description: Soils and lagoon sludge materials contaminated TNT / RDX /HDX and other explosives. Total percent explosives were as high as 41%.
Process Equipment: The system designed was a transportable direct-fired rotary kiln incinerator with a waste heat boiler and dry fabric filter scrubber system. A waste heat boiler was used reduce the gas temperature exiting the secondary combustion chamber prior to entering the dry fabric filter scrubber.
Sampling proved greater than 99.99% DRE in the kiln ash and greater than 99.9999% DRE in the fabric filter ash.
Stack sampling after using the rotary kiln incinerator we manufactured proved compliance with all Federal and State regulations including SO2, HCl, NOx and CO.
Rotary Kiln Incinerator for Soil/Sludge & Slit Remediation
