Wastewater and Sludge Treatment

Large wastewater treatment plant, Cologne-Stammheim

• Municipal Wastewater Company, Cologne
• Enhancements to the 1.6 million PE wastewater treatment plant
• Two stage activated sludge (A-B) method, flocculation filtration, sludge treatment with anaerobic digestion

Wastewater treatment plant, Kayseri, Turkey

• Water and Wastewater Authority of the City of Kayseri
• 800,000 PEs
• Activated sludge method with biological elimination of phosphorus, sludge treatment with anaerobic digestion

Wastewater treatment plant, Herford

• Herforder Abwasser GmbH
• 250,000 PEs, daily flow volume 33,000 m3/d
• Biological cleaning in 16 fixed bed cells, each 113 m2

Wastewater treatment plant, mouth of the River Emscher

• Emschergenossenschaft
• 2,000,000 PEs,
• peak inflow 21.5 m3/s
• Planning of a screening building, each with 8 coarse and 8 fine screens, as planning consortium

Upgrading of UJAMS Industrial Effluent Treatment Plant, Windhoek, Namibia

• City of Windhoek, Namibia
• Data collection and design for WWTP (97,000 P.E BOD5)
• Analysis of technical and private sector participation options, Elaboration of tariff models
• Tender procedure for technical part and BOO Model for private sector participation

Group wastewater treatment plant, North Canal

• Erftverband
• 80,000 PEs, max. inflow in rainy weather 1,881 m3/h
• Membrane biological reactor (MBR), membrane surface 84,480 m2