Air filtering Installations for cleaning exhaust air, in particular air filtering installations with regenerative, thermal, and catalytic combustion; Sanitary installations in the nature of digesters, such as Horizontal Plug-Flow (HPF) Anaerobic Digester for the production and thermal use of biogases; Water softening apparatus and installations for the conditioning and cleaning of water, in particular water softening installations, water desalination installations, sedimentation filtration installations, water filtrations installations, flocculation and precipitation filtration installations, reverseosmosis water filtration installations, ion-exchange water filtration installations, detoxification and neutralization water filtration installations for the detoxification and neutralization of formalin in water; Thermal installations in the nature of thermal disposal and waste incineration solutions for recycling valuable substances and energy from industrial wastes and biomasses, namely hazard waste treatment installations, Fluidized bed reactors, incinerators and kilns