Painted Metallic Aircraft Scrap: Neutralizing Toxic Hazards and Exposure Risk

Problem statement

Dutch recycling companies hesitate to accept chromated painted scrap due to concerns about the release of Cr(VI) by-products and their toxicity risk. The current approach of removing paint prior to recycling adds extra process costs and requires proper waste management of Cr(VI) by-products. This situation hinders the recycling of dismantled metal scrap, affecting the aircraft lifecycle model.

Objective

This proposal aims to overcome the bottlenecks in managing painted metal aircraft scrap by eliminating the toxicity exposure risk associated with Cr(VI) by-products. The main focus is on defining metal scrap handling steps follow by Dutch companies, in order to improve any problematic area and minimize the total Cr(VI) exposure.

Expected outcome

By addressing the toxicity exposure risk associated with Cr(VI) by-products, this proposal aims to contribute to the development of a circular economy model in the aviation sector, promoting sustainable and responsible metal scrap management practices. The expected outcomes of this project are: Improved safety and cost-effectiveness in metal scrap handling by avoiding paint removal; The timeframe for Cr(VI) leaching and safe handling of materials is expected to be determined; Development of guidelines for safe handling and recycling of chromated painted metal aircraft scrap.