PecoFacet Sewage Treatment Plants STP Series for marine applications are designed for the treatment of black waters (coming from WC, urinals and hospital) and grey waters (sinks, tratment consists in the purification and later disinfection of waters in order to achieve a quality effluent meeting IMO requirements. These plants treat sewage by biological means, this is that they are of the active sludge, prolonged aeration, aerobic type.
The plants are built in a single steel module to ease transportation and onboard installation. Inside this module, three chambers (aeration, settling and disinfection) especially designed, have been arranged in order to guarantee its correct operation and to avoid sludge generation. Each chamber has been provided with the necessary access and inspection register.
The air diffusers are located in the aeration chamber and they produce both oxygenation and shaking of the liquid to be trated.
Due to the special design of the settling chamber, the active sludge inside is separated from the effluent and automatically recirculated to the aeration chamber.
Both, the clarified liquid and grey waters reach the disinfection chamber where a chlorine solution is dosed in order to remove fecal coliform bacteria. Once disinfection has taken place, the effluent is automatically or manually discharged overboard or into a different installation.
PecoFacetSewage Treatment Plants STP Series meet Marpol Annex IV Requirements, 8 (1)(b) and 9.1.1 Regulations, as well as IMO Resolution MEPC-2(VI) and Resolution MEPC-159(55), CE Standards 96/98/EC and 2008/67/EC; and they do not generate sludge that should be later discharged.
The Plants are supplied completely assembled and tested so thath their installation onboard is very quick.
