prEN 12255-7

Wastewater treatment plants - Part 7: Biological fixed-film reactors

This European Standard specifies the design principles and performance requirements for secondary treatment by biological fixed-film reactors at wastewater treatment plants for more than 50 PT.
The primary application is for wastewater treatment plants designed for the treatment of domestic and municipal wastewater.
Biological fixed film reactors include biological trickling filters, rotating biological contactors, submerged bed reactors and biofilters.
Differences in wastewater treatment throughout Europe have led to a variety of systems being developed. This standard gives fundamental informations 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.

Kläranlagen - Teil 7: Biofilmreaktoren

Dieser Teil 7 der Normenreihe EN 12255 legt Grundsätze der Planung und Anforderungen an Biofilmreaktoren als zweiten und dritten (biologischen) Reinigungsteil von Kläranlagen über 50 EW fest.
Seine Anwendung bezieht sich in erster Linie auf Kläranlagen für die Reinigung von häuslichem und kommunalem Abwasser. Er kann auch auf biologisch abbaubare Industrieabwässer angewandt werden.
Biofilmreaktoren schließen Rotationstauchkörper (RBC), Rieselbett-Bioreaktoren (BTR), Schwebebett-Bioreaktoren (MBBR), Reaktoren mit getauchtem Trägermaterial (SMR) und Filter mit getauchtem Trägermaterial (SMF) ein. Membranbioreaktoren (MBR) und anaerobe Verfahren liegen nicht im Anwendungsbereich.
Einige der Anlagen, in denen Biofilmbakterien eingesetzt werden, sind erweiterte Belebungsanlagen (Hybridanlagen). Für solche Anlagen gilt auch EN 12255-6.
Dieses Dokument enthält grundsätzliche Angaben zu typischen Anlagenausführungen; legt jedoch nicht alle Einzelheiten zu allen erhältlichen Biofilmanlagen fest.

Stations d’épuration - Partie 7 : Réacteurs biologiques à cultures fixées

les exigences en matière de performances pour les traitements secondaire et tertiaire des eaux usées en réacteurs biologiques à cultures fixées dans les stations d’épuration des eaux usées de plus de 50 EH.
Le présent document s’applique principalement aux stations d’épuration de traitement des eaux usées domestiques et municipales. Il peut également s’appliquer aux eaux résiduaires industrielles biodégradables.
Le terme réacteurs biologiques à cultures fixées recouvre les disques ou tambours biologiques (RBC), les réacteurs biologiques à ruissellement (BTR), les réacteurs biologiques à cultures fixées fluidisées (MBBR), les réacteurs à matériaux immergés (SMR) et les filtres à matériaux immergés (SMF). Les bioréacteurs à membrane immergée (MBR) et les procédés anaérobies n’entrent pas dans le domaine d’application du présent document.
Certains systèmes utilisant des bactéries à cultures fixées sont des systèmes à boues activées améliorés (systèmes hybrides). Pour ces systèmes, l’EN 12255-6 s’applique également.
Le présent document fournit des informations de base sur les systèmes typiques, mais ne fournit pas d’informations sur tous les systèmes à cultures fixées disponibles.

Čistilne naprave za odpadno vodo - 7. del: Biološki reaktorji s pritrjeno biomaso

General Information

• Status: Not Published
• Publication Date: 10-Dec-2024
• ICS: 13.060.30 - Sewage water
• Technical Committee: CEN/TC 165 - Waste water engineering
• Drafting Committee: CEN/TC 165/WG 40 - Wastewater treatment plants > 50 PT
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 19-Oct-2023
• Due Date: 18-Oct-2023
• Completion Date: 19-Oct-2023
• Ref Project: oSIST prEN 12255-7:2023 - Wastewater treatment plants - Part 7: Biological fixed-film reactors

Relations

• Revises: EN 12255-7:2002 - Wastewater treatment plants - Part 7: Biological fixed-film reactors
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 12255-7:2023
01-september-2023
Čistilne naprave za odpadno vodo - 7. del: Biološki reaktorji s pritrjeno biomaso
Wastewater treatment plants - Part 7: Biological fixed-film reactors
Kläranlagen - Teil 7: Biofilmreaktoren
Stations d’épuration - Partie 7 : Réacteurs biologiques à cultures fixées
Ta slovenski standard je istoveten z: prEN 12255-7
ICS:
13.060.30 Odpadna voda Sewage water
oSIST prEN 12255-7:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 12255-7:2023

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oSIST prEN 12255-7:2023


DRAFT
EUROPEAN STANDARD
prEN 12255-7
NORME EUROPÉENNE

EUROPÄISCHE NORM

July 2023
ICS 13.060.30 Will supersede EN 12255-7:2002
English Version

Wastewater treatment plants - Part 7: Biological fixed-film
reactors
Stations d'épuration - Partie 7: Réacteurs biologiques à Kläranlagen - Teil 7: Biofilmreaktoren
cultures fixées
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 165.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12255-7:2023 E
worldwide for CEN national Members.

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oSIST prEN 12255-7:2023
prEN 12255-7:2023 (E)
Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Symbols and abbreviations . 9
5 Planning . 9
5.1 Planning principles . 9
5.2 Design principles . 10
6 Biological fixed film reactors . 11
6.1 Types of fixed film reactors . 11
6.2 Selection of support media . 12
6.3 Biological trickling reactors (BTR) . 12
6.3.1 General.
...