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

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Description

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 ... continued below

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46 p.

Creation Information

Spence, R.D.; Morgan, I.L. & Trotter, D.R. May 1, 1995.

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Description

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.

Physical Description

46 p.

Notes

OSTI as DE95011629

Source

  • Other Information: PBD: [1995]

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  • Other: DE95011629
  • Report No.: ORNL/TM--12905
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/82523 | External Link
  • Office of Scientific & Technical Information Report Number: 82523
  • Archival Resource Key: ark:/67531/metadc786724

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  • May 1, 1995

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • April 21, 2016, 9:47 p.m.

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Spence, R.D.; Morgan, I.L. & Trotter, D.R. Evaluation of density separation and other treatment methods for plastic media blasting (PMB) waste, report, May 1, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc786724/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.