The feasibility of processing lead-based paint abatement wastes through primary and secondary lead smelters

This study was undertaken to determine the feasibility of processing soil and lead-based paint (LBP) abatement waste through primary and secondary lead smelting facilities. The main objectives were to determine the compatibility of soil and LBP abatement waste with lead smelting circuits; the costs associated with transporting and processing the abatement waste through a smelter; and a review of major environmental laws or regulations which may impact the lead smelting industry's ability to carry out this process. While not all categories of LBP wastes are suited for reclamation through lead smelters, sufficient classes are to make the effort worthwhile. Specifically, lead paint chips, dusts, heatgun sludge, soils and certain blasting abrasives appear metallurgically compatible with the lead smelting circuits. Additionally, there do not appear to be any current regulatory statutes that forbid the process from being carried out, so long as certain permit modifications are obtained. Finally, the estimated smelting costs seem to compare favourably with current treatment and disposal fees at approved landfills. However, despite the promise of these initial findings, a great deal of work remains to be done if the concept of processing lead paint wastes through lead smelters for reclamation is to become a reality.