1. Legislative/regulatory requirements and best practices

1.1 Quality standards

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1.1.1 General case

STERUs must comply with quality standards for treated effluent prior to discharge into the natural environment. These standards cover various parameters, such as suspended solids, biological oxygen demand (BOD ₅ ), chemical oxygen demand (COD), total nitrogen and total phosphorus.

The requirements for effluent from STERU, introduced by the ERU Directive for agglomerations of 2,000 to 10,000 population equivalent...

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Legislative/regulatory requirements and best practices

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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...

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