WWTP Würzburg
Renewal of the sludge digestion
Engineering services
Engineering structures, LPH 1-7 + 9
Technical equipment, LPH 1-7 + 9
Structural engineering, LPH 1-6
Client
Stadt Würzburg, Entwässerungsbetrieb (EBW)
Veitshöchheimer Straße 1
97080 Würzburg
Contractual relationship
Sole Contractor
Processing period
Planning: 2010 - 2016
Construction: 2014 - 2020
Contact
Dr.-Ing. Anke Durth
Project Management
T +49 61 51 85 95-20
a.durth@dahlem-ingenieure.de
Short description
The existing digestion tanks at the Würzburg sewage treatment plant were no longer sufficient to treat the entire volume of sewage sludge. The construction of two new digestion tanks significantly increased capacity and boosted biogas production and electricity generation.
The newly built machine building houses three new CHP units and a heating system, among other things. The stair tower provides access to the digester heads. Another new building houses reception and pre-treatment facilities for external substrates for co-fermentation as well as for faeces and sewer sediments. In addition, exhaust air treatment systems were installed. The new systems were connected to the existing facilities via underground pipe channels.
The existing digestion tanks at the Würzburg sewage treatment plant were no longer sufficient to treat the entire volume of sewage sludge. The construction of two new digestion tanks significantly increased capacity and boosted biogas production and electricity generation.
The newly built machine building houses three new CHP units and a heating system, among other things. The stair tower provides access to the digester heads. Another new building houses reception and pre-treatment facilities for external substrates for co-fermentation as well as for faeces and sewer sediments. In addition, exhaust air treatment systems were installed. The new systems were connected to the existing facilities via underground pipe channels.
Project data
- New construction of two egg-shaped prestressed concrete digestion tanks, V = 2 x 5,000 m³
- Integration of a pneumatically supported membrane facade into the digestion tank design
- New construction of a machine room with stair tower
- 3 CHP units, each 525 kWel
- New construction of a building for co-substrates, faeces and sewer sediments
- New construction of a building with chemical exhaust air treatment and biofilter
- New construction of pipe channels
- Various conversions to existing buildings during ongoing operations
