Accession Number:

ADA277026

Title:

Lead Paint Removal by Confined Hydraulic Jet. Phase 1

Descriptive Note:

Final rept. 5 Aug 1993-7 Mar 1994

Corporate Author:

PAI CORP OAK RIDGE TN

Report Date:

1994-03-01

Pagination or Media Count:

87.0

Abstract:

This Phase I feasibility study examined a confined hydraulic jet as means for stripping lead-based paint from wood surfaces without dispersing debris paint chips and wood splinters into the ambient. Laboratory tests verified the capability for removing and concentrating the hazardous lead component. However, paint removal was accompanied by gouging of the wood substrate. The technique can be applied for preparation of older wood buildings military, inner-city prior to demolition and cleanup of chemically contaminated building interior and exterior surfaces. A separate effects approach used small 14 x 14 cm, painted wood panels pine, fir plywood. and oak for studies over a range of hydrojet characteristics and operating parameters. The apparatus was assembled from standard commercial components. Tests were done at pressure levels from 500 to 1500 psi 3.5-10.5 MPa using a 15-degree fan spray nozzle at nozzle-surface separations of 1 to 3 in. 2.5-7.6 cm.

Subject Categories:

  • Inorganic Chemistry
  • Coatings, Colorants and Finishes
  • Safety Engineering
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE