11 Systems for Environmental Installations for the Mechanical, Physical, Physicochemical, Chemical and Biological Treatment of Gas, Liquid and Solid Matter for the Purposes of Purification of Air, Waste Water, Sewage, Drinking Water, Industrial Water, Salt Water, Sludge and Solid Waste Comprising Clarifiers, Reactor Clarifiers, Filters, Aerators, Coagulators, Chlorinators, Ozonators, Digestors, Ion Exchangers, Floculators, Lime Softeners, Incinerators, Demineralizers, De-Oilers, De-Purators, De-Waxers, Strainers, Dryers, Rotary Flakers, Heat Exchangers, Gas Handling Equipment, Roasting Apparatus, Furnaces, Evaporators, Thermal Degassers, Crystallizers, Kilns, Coolers and Thermal Conditioners Sold as a Unit