Kasslerfeld sewage treatment plant

The Kasslerfeld sewage treatment plant is one of 72 sewage treatment plants of the Ruhrverband . It is located in Duisburg- Kasslerfeld at the confluence of the Ruhr with the Rhine, not far from the Rheinorange landmark .

The catchment area is over 5500 hectares and is traversed by the Ruhr . It includes the urban area of Mülheim an der Ruhr (except Selbeck), in Duisburg the areas Neudorf, Duissern, Altstadt, Kaßlerfeld, Neuenkamp and Kaiserberg, in Oberhausen partly the center as well as Alstaden and Styrum, in Essen: Haarzopf and Ruhmbachtal. Approx. 250,000 residents and various businesses are connected, around 450,000 population equivalents can be processed, and the annual waste water volume is 41 million cubic meters.

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From 1954 the system consisted of a mechanical-chemical cleaning stage with rake, sand trap and settling basin. There was also a digester and sludge storage areas. A biological purification stage with a sludge incineration plant was to be added as early as the 1970s, but this was initially rejected for reasons of immission control . In a plan approval procedure from 1982 to 1987, the new planning was approved, and from 1988 to 1992 the construction work was carried out while the old plant continued to operate. The construction costs amounted to 320 million DM, 80% of which were funded by the state of North Rhine-Westphalia as part of the “Future Mining Regions Initiative” (ZIM).

Conditions in the funding program stipulated a particularly ecological operation of the sewage treatment plant, which is taken into account with innovative energy and noise concepts. Calculator and other systems are located in closed buildings for reasons of noise and emissions. When pumping, the raw sludge runs through a recuperator (sludge-sludge heat exchanger) into the digester and is warmed up by the drained digested sludge. The digester gases from the sewage sludge operate five gas engines. Connected turbo blowers (500 kW each) ensure the ventilation of the activated sludge basin. Gas-powered generators (750 kW) generate electrical energy for their own use. Using combined heat and power , the waste heat from the gas engines is recovered via heat exchangers. A total of 480,000 cubic meters of digester gas are produced per year, the energy yield is 84%, three quarters of the energy required to operate the plant can be generated from own resources.

The Kasslerfeld sewage treatment plant is part of the route of industrial culture . The Haus Ruhrnatur regularly offers excursions for school classes, and visits are also possible directly through the Ruhrverband.

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51.442274 6.730071Coordinates: 51 ° 26 ′ 32.2 " N , 6 ° 43 ′ 48.3" E