Example Greywater Recycling Installations

Pilot plant in Berlin

We developed several greywater plants in Block 103, Berlin Kreuzberg, in cooperation with STATTBAU, an ecological program financed by the state of Berlin and the Federal Ministry of Building. These plants have been in operation since 1989 and have been investigated and optimised extensively by the Department of Hygiene of the Technical University of Berlin. The results of many years of research have been invested in the development of these greywater plants.

EXPO 2000, Hannover

The German construction company BauBeCon and the local public utilities erected a greywater experimental park in Hannover, Hageweisen. A greywater plant with a two-stage RBC (rotating biological contactor) was erected to provide for 6 housing units, and its successful operation has been documented by the municipal wastewater / drainage works since November 1994.

4-star hotel 'Arabella'

Commissioned by the Bavarian Industrie und Gewerbe Bau GmbH & CO, Munich, a six-stage greywater plant, one of the first of its kind worldwide, was installed in the 4-star hotel 'Arabella' for 400 beds. With a cleaning capacity of 20,000 litres per day, this plant has been in operation since January 1996.

Arabella 4-Star Hotel - Six Stage Greywater Plant

Greywater System Control Panel - Arabella

 

Greywater System RBC Group - Arabella

Demonstration plant in Kassel

A two-stage RBC, sized for 60 individuals, was erected in Kassel-Hasenhecke for 'Wohnstadt', the largest housing construction company in North Hessen. The plant has been in operation since the spring of 1996, and is being compared with rainwater reuse plants in a program initiated by the state of Hessen to compare water-saving technologies.