Energy-efficient sewage pump system reduces blockages

Queensland water authority Unitywater has installed a new pump and controller partner system at several of its sewage pump stations, in order to reduce blockages and save energy.

The Flygt Experior, by Xylem, is programmed to pump at the most efficient speed and times in order to move the most sewage using the least amount of energy. A trial undertaken at Unitywater’s Bli Bli pump station resulted in energy savings of 57% compared to the original pumping equipment.

Unitywater Executive Manager Infrastructure Services Glen Babington said the system can also detect blockages before they become an issue, stating, “The controller detects a blockage and the design of the pump allows it to pump backwards and reverse blockages.

“Fewer blockages equal fewer call-outs, so this equipment helps reduce call-out costs and electricity costs,” he continued.

The system has now been installed at seven Unitywater sewage pump stations and a further 20 locations have been identified to have the system fitted. An additional 34 sites have been proposed to have the controller fitted.