Vaccum Sewer Systems

This is the Latest Technology introduced by this corporation. The Methodology involves Collection of waste water and sewage from houses in Collection Sump by Gravity flow and as the level is raised the valve opens up and the waste water is evacuated from Collection sump to the Main Collection tank as negative pressure is maintained in the line. Further the waste water is pumped to the STP. The Vaccum valve is pneumatically operated, hence no electricity is required.

Vaccum Sewer system is useful in areas where topography is not uniform. In this Sewer lines are laid at a depth of 1.2 metres. The basic concept this technology is Air based transport of liquids (2 phase flow).

Negetive pressure is maintained in line with creation of waste water pockets. Manholes are not required in this system. In vaccum sewer systems sewer lines are self cleansing due to high velocity and pressure maintained in the lines. Vaccum sewer lines are laid in Saw Tooth Profile with minimum slope of 0.2% for maximum length of 100 mts. as shown in Fig. 2. Hence excavation of deep trenches as required for gravity sewers are eliminated with this system.

Vaccum Sewer Systems

Vaccum Valve Unit