Construction of a sedimentation tank at the Steinhäule wastewater treatment plant in Neu-Ulm

View of the newly built adsorption stage of the Lahr wastewater treatment plant

Contact reactor at the Lahr wastewater treatment plant

Sedimentation tank of the Laichingen wastewater treatment plant before the installation of lamella separators

Construction of the sedimentation tank at the Wendlingen municipal wastewater treatment plant

Adsorption stage in the Böblingen-Sindelfingen wastewater treatment plant

Adsorption stage in the Laichingen wastewater treatment plant in covered design

Two-lane adsorption stage in the Stockacher Aach wastewater treatment plant

Adsorption stage of the Lahr wastewater treatment plant

AFF system of the Hechingen wastewater treatment plant

Contact reactor of the adsorption stage, which is designed as a three-stage cascade, in the Kressbronn-Langenargen wastewater treatment plant

Contact reactor of the adsorption stage in the Ravensburg wastewater treatment plant

Contact reactor of the adsorption stage, which is designed as a three-stage cascade, in the Lahr wastewater treatment plant

Two-lane contact reactor of the adsorption stage in the Steinhäule wastewater treatment plant in Neu-Ulm

Contact reactor of the adsorption stage in the Mannheim wastewater treatment plant

Cloth filter for solids separation following the adsorption stage in the Lahr wastewater treatment plant during installation (source: Abwasserverband Raumschaft Lahr)

Cloth filter for solids separation following the adsorption stage during operation in the Lahr wastewater treatment plant

Cloth filter for solids separation following the adsorption stage during operation in the Laichingen wastewater treatment plant

Installation of the filter material for solids separation after the adsorption stage in the Steinhäule wastewater treatment plant in Neu-Ulm

Filter nozzle in the filter structure of the Mannheim wastewater treatment plant

Sedimentation tank of the AFF system in the Albstadt-Ebingen wastewater treatment plant

Sedimentation tank with lamella separators in the Stockacher Aach wastewater treatment plant

Granulated activated carbon filter in the Westerheim wastewater treatment plant

Delivery of powder activated carbon at the Böblingen-Sindelfingen wastewater treatment plant

Filling the powder activated carbon silo at the Mannheim wastewater treatment plant

Storage of powder activated carbon in silos

Storage of powder activated carbon in replaceable containers

Dosage system for powder activated carbon at the Laichingen wastewater treatment plant

Dosage system for powder activated carbon at the Böblingen-Sindelfingen wastewater treatment plant

Dosage system for powder activated carbon housed in a container for large-scale experiments

Dosage system for powder activated carbon at the Öhringen wastewater treatment plant

Dosage system for powder activated carbon: Close-up of the screw feeder protruding into the feeding funnel

Dosing the powder activated carbon suspension in the contact reactor

Dosage station for adding precipitants in an adsorption stage

Adding polymer using a static mixer

Dosing the polymer across the entire width of the tank into the effluent of the contact reactor in the Kressbronn-Langenargen wastewater treatment plant

Close-up of the dosage station for polymer in the Mannheim wastewater treatment plant

Dosing polymer in the mixing and aggregation tank of the Böblingen-Sindelfingen wastewater treatment plant

Submersible agitator for mixing the content of the contact reactor

Hyperboloid mixer for mixing the content of the contact reactor

Submersible agitator for mixing the content of the contact reactor

Inlet area of a sedimentation tank including the pumps installed for returning the activated carbon sludge into the contact reactor

Chain scraper in a sedimentation tank with flow in the lengthwise direction

Bottom scraper in a circular sedimentation tank

Sedimentation tank equipped with lamella separators during operation in the Stockacher Aach wastewater treatment plant

Sedimentation tank equipped with lamella separators in an empty condition in the Stockacher Aach wastewater treatment plant

View of the honeycombed lamella separators inside the sedimentation tank of the Laichingen wastewater treatment plant

Close-up of the lamella separators inside the sedimentation tank of the Laichingen wastewater treatment plant

Visual change of the wastewater as a result of the use of powder activated carbon and subsequent filtration: effluent of the secondary sedimentation tank (left) and effluent of the sand filter (right)

Decolouration of the wastewater as a result of the treatment with powder activated carbon: samples taken from the effluent of the secondary sedimentation tank with obvious yellow colouring (left) and adsorption stage without noticeable colouring (right)

Test facility for the development of the Ulm approach at the Steinhäule wastewater treatment plant in Neu-Ulm, Germany

Test facility for the development of the Ulm approach at the Steinhäule wastewater treatment plant in Neu-Ulm, Germany

Test filter column at the Steinhäule wastewater treatment plant in Neu-Ulm, Germany

Investigations regarding the adsorption behaviour of powder activated carbon regarding micropollutants under anaerobic conditions at the Mannheim wastewater treatment plant

Two-lane test facility for simultaneous dosage of powder activated carbon at ARA Schönau (Switzerland)

Test facility for dosing powder activated carbon at the Lahr wastewater treatment plant

Contact reactor of the test facility for dosing powder activated carbon at the Lahr wastewater treatment plant

Two-lane test facility by KomS for dosing powder activated carbon in a separate adsorption stage in the LFKW Stuttgart Büsnau

Small-scale filter column tests with granulated activated carbon at the Mannheim wastewater treatment plant

Test filter column for direct dosage of powder activated carbon at the Mühlhausen main wastewater treatment plant in Stuttgart

Upstream contact tanks for direct dosage of powder activated carbon at the Mühlhausen main wastewater treatment plant in Stuttgart

Structure of the two-lane test facility for simultaneous dosage of powder activated carbon at ARA Oftringen (Switzerland)

Two-lane test facility for simultaneous dosage of powder activated carbon at ARA Oftringen (Switzerland)