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EVS-EN 12255-13:2023

Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculation

General information

Valid from 01.08.2023
Base Documents
EN 12255-13:2023
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.08.2023
Main
01.03.2003
Main
This document specifies the requirements for chemical treatment of wastewater by
precipitation/flocculation for removal of phosphorus and suspended solids.
The application of polymers is not described in this document.
This document has not attempted to specify all available practices.
NOTE Chemical treatment can be performed in combination with primary and more commonly with
secondary treatment, but it can also be performed as separate tertiary treatment, usually in combination with
filtration (see EN 12255-16). Chemical treatment can provide a potential contribution to the circular economy
through the recovery of materials, such as phosphorus, from wastewater or sludge.

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