Evaluation of density separation and other treatment methods for plastic media blasting (PMB) waste

Technical Report · Mon May 01 04:00:00 EDT 1995

DOI:https://doi.org/10.2172/82523· OSTI ID:82523

Spence, R D; Morgan, I L; Trotter, D R

The United States Air Force has developed plastic media blasting (PMB) to replace solvent paint stripping of its aircraft. This paint blasting operation generates a waste stream of mainly pulverized plastic, but the stream also contains enough paint pigments to make the PMB waste RCRA hazardous. A Phase I study identified density separation as the preferred treatment alternative to land disposal of the entire PMB waste stream in a hazardous landfill. This study found density separation to be a less attractive alternative to self-encapsulation, solidification/stabilization (S/S), and low-temperature ashing. Self-encapsulation resulted in a volume decrease but only moderate improvement in Toxicity Characteristic Leaching Procedure (TCLP) performance Solidification/Stabilization (S/S) into cementiaous waste for resulted in excellent TCLP performances, but volume increases. Low-temperature ashing resulted in dramatic volume decreases, but off-gas control is required to contain all the RCRA metals. The resulting ash must be stabilized (e.g., S/S) to meet TCLP limits.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: Department of Defense, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 82523
• Report Number(s): ORNL/TM--12905; ON: DE95011629
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIRCRAFT
PAINTS
POLLUTION CONTROL
REMOVAL
WASTE PROCESSING