Sewage treatment plant Duisburg Alte Emscher
The wastewater treatment plant Duisburg Old Emscher in 1936 as a round basin system near the banks of the Rhine in Duisburg district of Hamborn built. It is one of four central sewage treatment plants of the Emschergenossenschaft .
Until 1910 the Emscher still flowed into the Rhine at this point . The relocation of the river mouth down the Rhine became necessary due to subsidence. The associated catchment area continues to be drained via the separated remainder, which is now called Alte Emscher . The wastewater reaches the Duisburg Alte Emscher sewage treatment plant using the pumping stations, the Alte Emscher pumping station (built in 1914) and the Stockum Alte Emscher (1956). After cleaning, they are pumped over the dike into the Rhine.
In 1936 the sewage treatment plant was built with only a rotating sludge removal bridge as a mechanical cleaning stage and a capacity of 110,000 population equivalents. In 1988 it was converted into a biological cleaning plant with a capacity of around 500,000 population equivalents. Today it is operated with a capacity of 375,000 population equivalents, 240,000 of which come from household wastewater and the rest from industrial and commercial wastewater (ThyssenKrupp, Rütgers, König-Brauerei).
The industrial wastewater decreased more and more in the course of the last decades, so that the wastewater treatment plant was used less and less. Since 1999, the predominantly domestic wastewater from the Duisburg and Oberhausen catchment area of the Kleine Emscher has no longer been cleaned in the outdated Duisburg Kleine Emscher sewage treatment plant (built in 1965), but pumped through an approximately five-kilometer-long pressure line to the Alte Emscher sewage treatment plant and processed there.
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Coordinates: 51 ° 29 ′ 35.5 " N , 6 ° 43 ′ 21.7" E