Historical purification plant Frankfurt
Today's historical sewage purification plant was built between 1883 and 1887 in the Niederrad quarter directly on the Main. At that time, it was the first plant of its kind in Germany. The plant was in operation until 1960.
Permission to include the picture here was given by the Stadtentwaesserung Frankfurt/Main.
Mixing chamber
In the mixing chamber, the chemical part of the plant, sulphate clay and lime were added to the water. The ensuing chemical reaction made the floating substances sink quickly to the bottom of the adjacent sedimentation tank.
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Sedimentation tank
The chemically treated sewage was then directed through the intake chamber to the sedimentation tank. A reduction in the speed at which the sewage flowed made the sedimentation process possible and facilitated the sinking of the floating substances to the bottom.
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Sand trap
The sewage began its path through the purification plant at a sand trap where the heavy mineral substances sank to the bottom. A screening unit was then used to remove the chunky materials by hand out of the water.
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Inflow chamber
The largest amount of sewage accrued on the right side of the Main and was sent to the plant through two large pipes below the Main. It was here that the sewage flowed into the plant.
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Outflow chamber
The purified sewage left the plant by means of the outflow chamber and was guided into the Main.
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Pump station
The pump station helped the purified sewage into the Main when the water was high.
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District information
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