Dela Recycling offers economical and environmentally friendly solutions for the recycling of non-ferrous metals such as molybdenum, nickel, cobalt and copper from spent catalysts, some in part containing mercury, and led them back into the circulation of raw materials. Further priorities cover soil decontamination, spent filter materials and activated carbons, sludge and elemental mercury, sorting and recycling of dry batteries and black mass recovery. Dela the specialist for recycling of non-ferrous metal-containing wastes. This includes in particular spent catalysts from the petrochemical and gas production, as well as mercury-containing wastes. Mercury is converted into non-toxic and insoluble mercury sulfide (HgS) and disposed of in an environmentally suitable way.