Refurbishment of the flue gas cleaning of three incineration lines

Client:

BWB – Berliner Wasserbetriebe
Completion:

2020
Location:

Klärwerk Gut Großlappen, München
Task:

Erneuerung
Volume:

ca. 15 Mio. €

Description

The Berliner Wasserbetriebe operates a three-line sewage sludge incineration plant in Ber-lin-Ruhleben. The exhaust gas from the fluidized bed passes through an electrostatic filter followed by a wet flue gas cleaning system for further treatment. In addition, activated car-bon is used for the reduction of mercury emissions prior to the electrostatic precipitator. To ensure a long-term reliable plant operation for at least 15 more years, the flue gas cleaning plant was substantially upgraded in all three lines and designed to handle higher pollutant concentrations. The project also included an optimization of the existing incinerators.

The following measures were implemented:

Rehabilitation and upgrading of the scrubber including the entire periphery
Installation of a new venturi quench
Renewal and upgrading of gypsum production
Partial renewal and upgrading of lime preparation plant
Refurbishment and replacement of parts of the flue gas ducts
Installation of a silo for activated carbon
Renewal of the decanter of the waste water treatment
Rehabilitation and upgrading of the induced draft fans
Renewal of the switchgear
New temperature control system and refractory for the incinerators

Contractor´s role

All work stages, starting with basic engineering, detail engineering, tendering in 25 lots, site supervision, construction management and commissioning. wandschneider + gutjahr inge-nieurgesellschaft mbH acted as the main contractor.