The Henriksdal facility will treat two thirds of the municipal wastewater for the city of Stockholm, Sweden.
Stockholm Vatten is upgrading the plant, which is situated inside rock. GE said more than 18km of tunnels blasted into the rock structure pose a challenge to expand the facility in the similar relative footprint.
After completion of the upgrade, the facility will process about 864 million liters of wastewater per day.
GE’s contract scope includes the design, supply and servicing of the total membrane filtration package.
The company will deliver the contract over a period of four to five years in several stages. Design is planned to be completed in 2015 and first shipments will start in 2016.
Stockholm Vatten will utilize GE’s LEAPmbr technology to increase capacity and meet stringent requirements set by the Baltic Sea action plan.
GE’s ZeeWeed 500 membrane ultrafiltration technology will separate solids, bacteria and viruses from water or wastewater.
Stockholm Vatten managing director Gösta Lindh said: "We saw the need to update the current wastewater treatment technology at our Henriksdal facility to meet the demands of a growing population in Stockholm and new environmental requirements set by our governing bodies.
"GE’s LEAPmbr and ZeeWeed* technology will help us meet our long-term needs for increased wastewater treatment capacity and will help us do so in a more energy-efficient and cost-effective manner."
Image: Henriksdal wastewater treatment plant lies inside chambers blasted into the rock. Photo: Courtesy of General Electric.
