Bottrop sewage treatment plant

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Information sign at the entrance
The entire complex

The Bottrop sewage treatment plant , also known as the Emscher sewage treatment plant, is one of four central sewage treatment plants on the Emscher . The plant is located in the Welheimer Mark district of Bottrop and is operated by the Emschergenossenschaft . The first wastewater treatment plant was built at this location as early as 1929; it only cleaned the entire river water mechanically.

The current sewage treatment plant was built from 1991 to 1996 for 230 million euros on the 147,000 m² site. It cleans up to 8,500 liters of water per second. In addition to mechanical cleaning with rakes, sand and fat traps, activated sludge basins and pre- / post-clarification basins are operated. The clarification basins cover a total area of ​​58,000 m², the activated sludge basins are unusually deep (10 meters) due to the limited space available. The four, 54 meter high digestion towers have a total volume of 60,000 m³. The Emschergenossenschaft's central sewage sludge treatment plant is also located on the site. The digester gas obtained is used to generate electricity and to heat the plant. As part of a pilot project to refine digester gas into bio-natural gas, in-house vehicles are refueled at the bio-natural gas system fed from it. In 2008, the Emschergenossenschaft received an innovation award from the International Water Association (IWA) for this project with its further step towards the use of hydrogen .

The catchment area of ​​the sewage treatment plant includes the river systems of the Boye , Schwarzbach , Lanferbach , Holz-, Resser- and Sellmannsbach. The catchment area of ​​the sewage treatment plant covers 240 km² in the area of ​​the cities of Bottrop, Bochum, Essen, Gelsenkirchen and Gladbeck.

The plant is designed for a capacity of 1.22 million population equivalents (approx. 740,000 inhabitants and about 480,000 population equivalents as industrial wastewater). The wastewater is fed to the plant through the above-mentioned above-ground watercourses and an underground canal that runs from Gelsenkirchen via Essen to Bottrop, and is also collected directly from the Emscher.

The four digestion towers, which are illuminated at night, are striking and visible from afar.

  • Sewage sludge treatment plant

  • Bio natural gas plant

  • Digestion towers at night

  • Stair tower

Individual evidence

  1. ↑ Information from EGLV on the funding notification  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Toter Link / www.eglv.de  

Web links

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Coordinates: 51 ° 30 ′ 53.2 ″  N , 6 ° 59 ′ 6.6 ″  E