NF EN 12255-4 : 2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
WASTEWATER TREATMENT PLANTS - PART 4: PRIMARY SETTLEMENT
04-04-2023
12-01-2013
Avant-propos
1 Domaine d'application
2 Références normatives
3 Termes et définitions
4 Prescriptions
4.1 Généralités
4.2 Projet
4.3 Spécifications du procédé
4.3.1 Généralités
4.3.2 Capacité de traitement
4.3.3 Décanteurs à flux vertical (et l'Imhoff)
4.3.4 Décanteurs à flux horizontal
4.3.5 Décanteurs lamellaires
4.3.6 Collecte et extraction des boues
4.3.7 Élimination des flottants
4.4 Maintenance
4.5 Hygiène et sécurité
Bibliographie
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.