8. Conclusion
STERUs are subject to legislative requirements and practices designed to ensure that treated water meets strict environmental standards before discharge into the natural environment. These standards include various parameters such as TSS, BOD 5 , COD, and nitrogen and phosphorus levels.
STERU design requires a multi-dimensional approach, including a combination of pre-treatment, primary, secondary, tertiary or complementary treatment processes, depending on the size of the agglomeration and the sensitivity of the receiving environment. Each of these systems has its advantages and limitations, and must be correctly sized and operated to ensure effective treatment.
The complexity of treatment systems and the diversity of technologies and best practices call for contextual assessment, precise sizing,...
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Conclusion
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 Repealed by Decree n°2000-318 of April 7, 2000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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