3. Bearing at the head of the installation

When a wastewater treatment plant is built, designers are most often obliged to install a lift station, for the following reasons in particular:

site topography :
- Is the terrain suitable for gravity flow of collected ERU?
- Is the ERU source at a lower altitude than the STERU?
hydraulic constraints :
- when ERU are transported over long distances with variations in elevation, gravity flow may be insufficient,
- lift stations regulate flows by temporarily accumulating ERU and then pumping it out at a constant rate;
sewer network configuration: in a complex urban wastewater system, several networks may converge on a single...

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Bearing at the head of the installation

Bibliography

(1) - Agence de l'Eau Rhin-Meuse - Procédés d'épuration des petites collectivités du bassin Rhin-Meuse : éléments de comparaison techniques et économiques - (2007).
(2) - ALEXANDRE (O.), BOUTIN (C.), DUCHENE (P.), LAGRANGE (C.), LAKEL (A.), LIENARD (A.), ORDITZ...

General Commission for Sustainable Development

Eaufrance

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Wastewater treatment plants – Part 1: General principles of construction: specifies the general principles of design, construction and installation of technical equipment for wastewater treatment plants. - NF EN 12255-1 - avril 2002
Wastewater treatment plants – Part 3: Pretreatments: specifies applications, procedures and performance requirements for raw wastewater pretreatments. - NF EN 12255-3 - avril 2001