Vacuum Sewerage Systems

Corodex Electromechanic is the regional leader in providing the best of engineering services. In partnership with the renowned Bilfinger Water Technologies, Corodex Electromechanic provides world-class MEP services of vacuum sewerage and water transmission systems.
One of the most prestigious projects that Corodex executed was to design, supply, install, commission and operate the Vacuum Sewerage System for one of the 8th Wonders of the World, The Palm Jumeirah Island in Dubai, UAE.
Being in this field and having executed number of related projects give us a leading edge and distinctive identity of a market leader in engineering and electromechanical works. Corodex Electromechanic has the expertise together with Bilfinger, well-experienced project management team and fully operational projects as our reference.
Importantly, Corodex Electromechanic is certified to ISO 9001:2015, ISO 14001:2015 and OHSAS 18001:2007 standards. We are committed to providing best electromechanical services to our customers with utmost care and protection to the environment and to the health and occupational safety of our employees.

Vacuum sewer systems are…

  • Collection Systems for domestic waste water.
  • Easy to install systems for waste water within low and medium dense residential, industrial, commercial or mixed use areas
  • State of technology, eco-friendly, safe and operator friendly systems (DWA-A 116-1, EN1091, WEF, EPA)
  • Alternatives for conventional gravity sewer systems under difficult conditions


  • Flat terrain und lack of natural slope
  • Little flows and long distances within expanded municipalities with seasonal flows within resorts
  • High ground water tables
  • Unstable underground (Rocky, sandy or swampy)
  • Ecologically sensitive areas
  • Existing infrastructure, limited construction space

Operation of Vacuum Sewerage Systems

Wastewater flows by gravity from a house/villa into a collection chamber’s sump. After a given quantity (batch) of wastewater accumulates in the sump, an inter-face valve automatically opens. The batch volume plus an additional volume of air flows through the open valve and is transported to a centralized vacuum station. Vacuum sewer pipes are arranged with high and low points in a specific elevation profile.
Batches of wastewater come to rest at low points in the pipe. When air is introduced through an upstream interface valve, the wastewater is pushed plug-wise over subsequent high points toward the vacuum station.
Wastewater and air are driven to a collection tank (vacuum tank) at the vacuum station. Vacuum generators (vacuum pumps) maintain vacuum in the tank and sewer pipe. Conventional sewage pumps forward collected waste-water from the collection tank through a force main to wastewater treatment plant.