UK company Ultromex recently signed a major contract with Rio Tinto to remediate a salt slag landfill site in Europe. Ultromex, together with its partner EJM Hydrovac, will excavate, process and re-instate the site in France during the next three years. This multi-million Euro contract will treat 65,000 tonnes of salt slag waste. Salt slag, also referred to as salt cake or black dross is a waste material generated by secondary aluminium processing, the recycling and smelting of new aluminium from aluminium scrap, dross and other industry wastes. Due to its reactivity with water and the nature of the contaminants it contains, salt slag or salt cake as it sometimes known is now classed as a hazardous waste.
Many aluminium smelting wastes are hazardous in nature and historically were routinely landfilled before the EU and other regions changed regulations to prohibit further landfill. There are many such landfills in existence around the world and, where they cause environmental issues, Ultromex now has a proven solution to resolve the problem.
Ultromex, based near Liverpool, offers a range of technologies to treat and recycle aluminium smelting wastes. It offers solutions to address wastes such as dross, salt slag, SPL and filter dusts as they arise at the smelter, or in this case, where they have been stockpiled or landfilled in the past.