WATER DISPOSAL SYSTEM FOR MEGAPOLIS Russian patent published in 2012 - IPC C02F1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to sanitary engineering and can be used in disposal, treating waste water and recycling residues of large population centres (megapolises). The water disposal system for a megapolis, having a sludge recycling subsystem, an additional sludge recycling subsystem, in which ash forms after burning the sludge, is additionally provided with, arranged in series in front of dehydration units, units for transporting waste water, having series-connected inlet manifolds and main pumping stations, wherein the inlet manifolds are connected with receiving tanks of the main pumping stations on the mark between maximum and minimum level sensors, units for treating waste water with extraction of sludge, having filtrate water gravity flow lines, wherein the dehydration units and the inlet manifolds are connected by filtrate water gravity flow lines, an inter-pond pumping station with a feed pipeline and a pressure line, wherein the feed pipeline is connected to the inlet manifold of the sludge recycling subsystem, and the pressure line is connected to the inlet manifold of the additional sludge recycling subsystem. Another version is also possible, where the additional sludge recycling subsystem is provided with an internal pumping station with pressure pipes, wherein the dehydration units and the internal pumping station are connected by filtrate water gravity flow lines, and the pressure pipe of the internal pumping station is connected to the receiving chamber of the waste water treatment units.

EFFECT: invention increases reliability and safety characteristics of the system for recycling residues in megapolis conditions.