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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
Websites
General Commission for Sustainable Development
https://www.ecologie.gouv.fr/commissariat-general-au-developpement-durable-cgdd
Eaufrance
https://www.eaufrance.fr/lassainissement-des-eaux-usees-domestiques
...Standards and norms
- 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 ...
Regulations
Directive 91/271/EEC of May 21, 1991 concerning urban waste-water treatment
Law no. 92-3 of January 3, 1992 on water,
LAW no. 2006-1772 of December 30, 2006 on water and aquatic environments
Decree no. 94-469 of June 3, 1994 on wastewater collection and treatment. Repealed by Decree n°2000-318 of April 7, 2000
Décret n° 2006-503...
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The Ultimate Scientific and Technical Reference