Emscher Fountain

from Wikipedia, the free encyclopedia
Imhoff "septic tank" for a South Tyrolean farmhouse, already sunk. At the front the outflow to the drainage line is not yet connected. Manufacturer: Rototec, Lunano, Pesaro-Urbino / brands

The Emscherbrunnen , also known as the Imhoff tank , is a settling basin for mechanical wastewater treatment .

functionality

Emscherbrunnen, developed in 1907 by Karl Imhoff
a) settling room b) digested sludge extraction c) sludge extraction d) floating sludge extraction f) digester

The sludge sinks from the sewage water, which flows through the sedimentation tank lengthways, under its own weight and slides down the sloping walls into the actual digester. (Sewage water inlet not shown in the picture) The principle of the Emscher well was developed in 1906 by Karl Imhoff . The name Imhoff tank is therefore also in use internationally . It is a special form of the Dortmund fountain .

Emscher fountains are characterized by a low hydraulic load capacity due to their relatively small settling space. Due to the decoupling of the sedimentation room and digestion chamber, the sludge that is swirled up cannot pollute the pre-cleaned wastewater, which has largely been freed of solids, when the sludge removal is required on a regular basis.

The Emscherbrunnen takes its name from the Emscher Association , who first used it in the wastewater treatment plants in the Ruhr area . Imhoff had constructed the first system of this type in Recklinghausen .

literature

  • Karl Imhoff, Klaus R. Imhoff, Norbert Jardin: Pocket book of urban drainage. 30th edition. Oldenbourg Industrieverlag, Munich 2007, ISBN 978-3-8356-3094-9 , p. 303 ff.

Individual evidence

  1. ^ Karl Imhoff: Professional memories of a water engineer. In: Karl and Klaus R. Imhoff: Taschenbuch der Stadtentwässerung. Oldenbourg, Munich 2007, ISBN 978-3-8356-3094-9 , p. 5. (online at: books.google.de )
  2. ^ A b Hanns Roediger, Markus Roediger, Helmut Kapp: Anaerobic alkaline sludge digestion . 4th edition. Oldenbourg, Munich 1990, ISBN 3-8356-6103-5 .
  3. ↑ Gunther Geller, Gunhild Höner: User manual for plant sewage treatment systems . Practical quality management in planning, construction and operation. Springer, Berlin et al. 2003, ISBN 3-540-40135-0 . (online at: books.google.de )
  4. ↑ Emscherbrunnen (construction, operation) . In: geschichte-reckenfeld.de .