advisory services relating to the removal of specified chemicals from chemical process fluids; chemical processing of industrial catalysts to remove metal particles prior to reuse; chemical processing of liquids; chemical treatment of waste products; disposal of waste water from industrial processes; disposal of waste from water treatment installations; disposal of solid residues; destruction of waste and trash; extraction of elements contained in waste residues; extraction of minerals contained in waste residues; material treatment; material treatment involving biotechnological processes; material treatment involving cell culture processes; material treatment of scrap; material treatment of waste; metallurgical processing; processing of oxides; processing of materials; processing of metallic materials; processing of used exhaust catalysts for recovery of noble metals; processing of waste materials; waste processing; recovery of precious metals; services for the recovery of materials from waste; paper treating and metal treating