Technology Demonstration of Thermal Spray Vitrification Process at Fort Drum, NY. Cost and Performance Report
Abstract
The thermal spray vitrification (TSV) process was developed and patented by ERDC/CERL to remove lead-based paint from steel structures. TSV consists of spraying a molten glass from a thermal spray torch onto a painted steel surface. When the glass strikes the paint, it pyrolyzes the organic components, and lead is trapped within the glass, which cracks and spalls off the substrate. Remelting the vitrified paint residue immobilizes the lead in the glassy iron silicate matrix, and renders the waste nonhazardous. This report documents the results of a demonstration of TSV on a fire hydrant at Fort Drum, NY, along with an innovative hand-held high-frequency paint removal device that was used in conjunction with the TSV process. TSV results in significant cost savings, as no containment structures or worker health and environmental monitoring are required. The formation of a nonhazardous waste also decreases disposal costs. At this time, the TSV process is best suited to niche markets where the cost of full containment structures cannot be spread over a large area.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2003
- Accession Number
- ADA412669
Entities
People
- Ashok Kumar
- Larry David Stephenson
- Ray Zatorski
- Robert S Weber
Organizations
- Engineer Research and Development Center