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EVS-EN 12255-6:2002

Wastewater treatment plants - Part 6: Activated sludge processes

General information

Withdrawn from 17.07.2023
Base Documents
EN 12255-6:2001
ICS Groups
13.060.30 Sewage water
Directives or regulations
None

Standard history

Status
Date
Type
Name
17.07.2023
Main
EVS-EN 12255-6:2023
01.09.2002
Main
EVS-EN 12255-6:2002
This European Standard specifies the performance requirements for treatment of wastewater using the activated
sludge process for plants over 50 PT.
Differences in wastewater treatment throughout Europe have led to a variety of systems being developed. This
standard gives fundamental information about the systems; this standard has not attempted to specify all available
systems.
Detailed information additional to that contained in this standard may be obtained by referring to the bibliography.

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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English