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Gaenserndorf WWTP

The customer requested several surface aerators Mammutrotoren 1000-7.5 inclusive guide baffle, brake shield and other equipment.


Since start-up, the Mammutrotors® have been running completely satisfied without significant problems.

The technical support complies withthe agreements therefore the gwt certifies the Passavant the required expertise, efficiency and reliability based to the aforementioned treatment plant.


The first delivery included several7.5m Mammutrotor® and took place in calendar week 35/2014. The second delivery took place in spring 2015 and included several 4.5 m Mammutrotor®.

Key Features


gwt – Gesellschaft für Wasser- undWärmetechnik GmbH
Hirtenbergerstrasse 1
2544 Leobersdorf


Delivery Date

August2014 and April 2015


  • particularly robust operational mode and long service life.
  • constant oxygenation over entire operation time.
  • low maintenance.
  • flexible use regarding to automatic control technique and cleaning objectives.
    negative influence based on oxygenation by any sewage ingredients.

Technical Data

2 x Passavant® Surface Aerator Mammutrotor® 1000 – 7.5
Installed under concrete bridge(Installation by customer)

Nominal length of the rotor:         7.5 m
Diameter:                                        1000 mm
Propulsion:                                     37 kW
Rot. frequency:                             72 min-1


4 x Passavant® Surface Aerator Mammutrotor® 1000 – 4.5
Installed under concrete bridge(Installation by customer)

Nominal length of the rotor:      4.5 m
Diameter:                                     1000 mm
Propulsion:                                   22 kW
Rot. frequency:                            72 min-1

Locations and Contact


Aqseptence Group GmbH, Aarbergen

Sales and Manufacturing Location
Passavant-Geiger-Strasse 1
65326 Aarbergen

Tel: +49 6120 280

Fax: +49 6120 28 2182


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