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Standard DWA-A 131E Dimensioning of Single Stage Activated Sludge Plants

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Foto: Fritz Eberlein

The dimensioning procedure for nitrifying and denitrifying activated sludge plants is now based exclusively on the COD load, unlike in earlier editions that were based on the measured BOD5 load. Contains Process description, the design procedure and the design bases, as well as the calculation of the mass of the sludge and the design of the secondary treatment and sludge activation. Planning and operational aspects, scenario comparisons, the effect of further automation functions and operational management concepts are included.

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New Translations of DWA Publications

Standard DWA-A 131E - Dimensioning of Single-stage Activated Sludge Plants - June 2016 (translation May 2022)

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Modular Wastewater Training System - International Edition with 63 magnetic picture cards

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Fit in wastewater technology? Revised Edition June 2021

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Guideline DWA-M 277 - Information on design of systems for the treatment and reuse of greywater and greywater partial flows - October 2017

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DWA-Topics - Non-Potable Water Reuse - Development, Technologies and International Framework for Agricultural, Urban and Industrial Uses - June 2019

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DWA-Topics T4/2016 - Design of wastewater treatment plants in hot and cold climates (EXPOVAL) - corrected version May 2019

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DWA-A 782 - TRwS Schienenfahrzeuge (5/2006)

Arbeitsblatt DWA-A 782 - Technische Regel wassergefährdender Stoffe (TRwS 782) - Betankung von Schienenfahrzeugen - Mai 2006
5/2006
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DWA-M 167-2 Abscheider Leichtflüssigkeit (12/2007)

Merkblatt DWA-M 167-2 - Abscheider und Rückstausicherungsanlagen bei der Grundstücksentwässerung: Einbau, Betrieb, Wartung und Kontrolle - Teil 2: Abscheideranlagen für Leichtflüssigkeiten - Dezember 2007; Stand korrigierte Fassung März 2008
12/2007
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DIN EN 12255-7

DIN EN 12255-7 - Kläranlagen - Teil 7: Biofilmreaktoren - April 2002
4/2002
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DWA-A 118 - Hydraulische Bemessung (3/2011)

Arbeitsblatt DWA-A 118 - Hydraulische Bemessung und Nachweis von Entwässerungssystemen - März 2006, Stand: korrigierte Fassung September 2011
3/2006
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DWA-Themen - Nährstoffeinträge (8/2004)

DWA-Themen - Signifikante Nährstoffeinträge aus der Fläche - August 2004
8/2004
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DIN EN 12255-15

DIN EN 12255-15 - Kläranlagen - Teil 15: Messung der Sauerstoffzufuhr in Reinwasser in Belüftungsbecken von Belebungsanlagen - April 2004
4/2004
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