EN 12255-7:2002

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

Diese Europäische Norm legt Grundsätze der Planung und Anforderungen an Biofilmre-aktoren als zweiten (biologischen) Reinigungsteil von Kläranlagen über 50 EW fest.
Die Anwendung bezieht sich in erster Linie auf Kläranlagen, die zum Reinigen von häuslichem und kommunalem Abwasser geplant werden.
Biofilmreaktoren umfassen Tropfkörper, Rotationstauchkörper, Biofilmreaktoren mit getauchtem Trägermaterial und biologische Filter.
Die Unterschiede in Planung und Bau von Kläranlagen in Europa haben zu einer Vielzahl von Anlagenausführungen geführt. Diese Europäische Norm enthält grundsätzliche Angaben zu den Anlagenausführungen; sie beschreibt jedoch nicht alle Einzelheiten jeder Ausführungsart.
Die in den Literaturhinweisen aufgeführten Unterlagen enthalten Einzelheiten und Hinweise, die im Rahmen dieser Norm verwendet werden dürfen.

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

La présente Norme européenne spécifie les principes d'étude et les prescriptions de performances applicables au traitement secondaire des eaux usées par réacteurs biologiques à cultures fixées dans des stations d'épuration pour plus de 50 EH.
La principale application concerne les stations d'épuration conçues pour traiter des eaux usées domestiques et municipales.
Le terme réacteurs biologiques à cultures fixées recouvre les lits bactériens, les disques et tambours biologiques, les réacteurs à lit immergé et les biofiltres.
Des différences en matière de traitement des eaux usées résiduaires à travers l'Europe ont conduit au développement de systèmes variés. La présente norme donne les informations de base sur les systèmes et n' a pas eu pour objectif d'essayer de spécifier tous les systèmes disponibles.
Des informations détaillées, complémentaires à celles contenues par la présente norme, peuvent être obtenues en se reportant à la bibliographie.

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

General Information

• Status: Published
• Publication Date: 15-Jan-2002
• 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: 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
• Completion Date: 31-Aug-2022
• Directive: 93/38/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Mandate: M/BC/CEN/88/15 - Standardization request to CEN/CENELEC in the field of Water supply, drainage and sewerage
• Ref Project: SIST EN 12255-7:2002 - Wastewater treatment plants - Part 7: Biological fixed-film reactors

Relations

• Revised: prEN 12255-7 - Wastewater treatment plants - Part 7: Biological fixed-film reactors
• Effective Date: 28-Jan-2023
• Parent: EN 12255-13:2002 - Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculation
• Effective Date: 22-Dec-2008

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kläranlagen - Teil 7: BiofilmreaktorenStations d'épuration - Partie 7: Réacteurs biologiques a cultures fixéesWastewater treatment plants - Part 7: Biological fixed-film reactors13.060.30Odpadna vodaSewage waterICS:Ta slovenski standard je istoveten z:EN 12255-7:2002SIST EN 12255-7:2002en01-december-2002SIST EN 12255-7:2002SLOVENSKI
STANDARD



SIST EN 12255-7:2002



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12255-7January 2002ICS 13.060.30English versionWastewater treatment plants - Part 7: Biological fixed-filmreactorsStations d'épuration - Partie 7: Réacteurs biologiques àcultures fixéesKläranlagen - Teil 7: BiofilmreaktorenThis European Standard was approved by CEN on 9 November 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12255-7:2002 ESIST EN 12255-7:2002



EN 12255-7:2002 (E)2ContentspageForeword.31Scope.52Normative references.53Terms and definitions.54Requirements.64.1General.64.1.1Biological fixed film processes.64.1.2Trickling filters.64.1.3Rotating biological contactors.64.1.4Submerged bed reactors and biofilters.74.2Planning.74.3Process.74.3.1Design.74.3.2Modes of operation.84.3.3Selection of support media.84.3.4Dimensions.94.3.5Flow distribution.104.3.6Oxygen supply.104.3.7Clarification and solid separation.
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