Dear Mr.Marc Vacuum ...
Published by Prem Baboo, Researcher at www.researchGate.net
Dear Mr.Marc
Vacuum sewerage systems are used in a variety of situations including, Marina’s; Green Buildings; Hospital’s; Industrial area’s; Army, Emergency and Mining Camps; and the principals of operation are the same as in residential area’s where a vacuum system may have replaced an old septic tank or gravity system or in a new housing development.
The sewerage system which uses differential air pressure and gravity to rapidly transport sewage in a network of essentially empty pipes from Collection Pits to a central collection tank and then to a point of discharge. A batch of sewage enters the vacuum system when the atmospheric Valve opens in a Collection Pit and the sewage is sucked into the Vacuum main. The Valve remains open briefly following the removal of the sewage from the pit sump allowing atmospheric air to enter the suction pipe and blow the sewage batch toward the Vacuum Pump Station.
The Vacuum Pump Station (VPS) houses a collection tank (to collect the sewage); discharge pumps to send the sewage to the treatment plant; controls to automate the station and vacuum pumps which create a negative pressure in the vacuum mains. (-0.5 -0.7 bar). Usually only one VPS is required in an average sized catchment. Unlike the older vacuum sewerage systems the transport in modern systems is fast and notably not due to a syphon.
Ideally a Vacuum Pump Station is located centrally within a catchment area but the designer can be flexible about this. A backup generator can be located at the VPS ensuring non stop operation in area’s where power is a problem or susceptible to Hurricanes or Cyclones.
QUA-VAC is a globally orientated company that designs, manufactures and markets environmentally friendly vacuum wastewater collection and treatment systems for the rural sewage-, building- and marine industries. 50 years of experience in vacuum sewage technology, skilled personnel, professional design and high-quality technical solutions have facilitated continuous growth of knowledge and market share.
1 Comment
Thanks for your description of the system. I wonder in which way the different providers of Vaccuum sewer techznology differ from each other? Is it mainly the valve unit that is designed differently? What other factors come into play? Thanks a lot.
Published by Marc Beckett, Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB