The numerous accidents occurred in companies that melt scrap metals have shown that the hazard caused by the presence of radioactive materials--or 'orphan sources'--may have serious consequences on standard production, with great economic and social damage. Italian Legislative Decree No. 100/11 establishes the skills required for the safe management of scrap metals in the whole production cycle...

Abstract Currently, recycled metal is diluted with primary to keep the concentration of alloying elements within specification. This will be more difficult in future, when a larger proportion made from scrap. Particularly, there need for process that can remove noble than aluminum scrap metal. While electrolytic refining three-layer cell (the Hoopes process) possibility; present paper presents ...

In order to reduce the elemental species produced in recycling and melting of aluminum scrap improve quality pure alloys, it is necessary classify different grades before melting. For problem classifying scrap, most existing studies are conducted using laser-induced breakdown spectroscopy for identification classification, which requires a clean flat metal surface enormous equipment costs. this...

Scrap tires continue to be a major source of waste due to the lack of valuable and effective disposal routes. A viable solution to this problem is to recycle crumb rubber (CR)-a granulated material derived from scrap tires-and use it to develop other valuable products. Herein we report the fabrication and characterization of CR-modified coatings with anticorrosive properties on metal substrates...

experiments, for aqueous Cr(VI) solutions having low buffering capacities, over the Cr(VI) concentration range of 5 – 40 mg/L. The results showed that the initial Cr(VI) concentration significantly affects the reduction capacity of scrap iron. Maximum reduction capacity of scrap iron was observed at the beginning of the column experiments; the lower the Cr(VI) concentration, the greater the exp...