Hydro Ingenieure - Vision to clear solutions


Tasks definition

Since 1976 the wastewater from the association area is biologically treated in the WWTP GAV Krems.

Because of extension of the association to 18 association municipalities and because of the necessary adjustment to the state-of-the-art technology it was decided to up-grade the plant to 255,000 PE.

The construction has to be implemented in phases and it must be demand-oriented. The upgrading is to be carried out under operation of the existing plant while meeting the existing treatment limits.


Based on the analysis of existing situation and future demends, a master plan for the implementation of the project has been elaborated.

Seven different scenarios were confronted and the most economical solutions for the upgrading of the WWTP were identified. Following the outcomes of the master plan a design for building permission was elaborated in 2008. The first phase of the project is to be commenced shortly and it is planned to be completed in 2012.

  • Master plan
  • Project management
  • Design for building permission
  • Elaboration of funding application
  • Detail design
  • Preparation of tender documents
  • Tender evaluation
  • Preparation of contracts with Contractors / contracting
  • Construction supervision
  • Taking-over of works
  • Issue of final acceptance documentation
  • Commissioning
  • Client: Municipalities wastewater association Krems/Donau
  • Project duration: July 2002 - December 2016
  • Investment volume: € 45.000.000,–
  • Contact person: Franz Gruber, BSc