Lead-Containing Paint Removal, Containment, and Disposal

摘要

Approximately 90 percent of the steel highway bridges in the United States areprotected from corrosion with lead-based paints. Maintenance of the coating system requires the work to be performed in compliance with environmental and worker health/safety regulations. A comprehensive study was performed to evaluate the various factors involved with lead-paint removal. Containment and ventilation systems were studied and recommendations were developed for containment materials, design of joints, design of air inputs, negative pressure, and airflow within containment. Tests were performed on hazardous waste characterization, waste minimization, methods of generating non-hazardous waste, and long-term stability of lead-containing wastes and stabilized wastes. Alternate surface preparation methods and costs were evaluated.