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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

Poster "How a wastewater treatment plant works"

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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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Activated Sludge Expert with Aeration - Software based on Standard DWA-A 131 (January 2016) "Bemessung von einstufigen Belebungsanlagen" - Edition 3. X

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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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DVWK-M 235 - Kennwerte (1997)

DVWK Merkblatt 235 - 1997 - Bodenphysikalische Kennwerte - fachlich auf Aktualität geprüft 2017
1/1997
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DIN EN 12255-13

DIN EN 12255-13 - Kläranlagen - Teil 13: Chemische Behandlung, Abwasserbehandlung durch Fällung/Flockung - April 2003
4/2003
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DIN EN 12255-9

DIN EN 12255-9 - Kläranlagen - Teil 9: Geruchsminderung und Belüftung - April 2002
4/2002
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DWA-M 273 - Wasseraufbereitung (5/2009)

Merkblatt DWA-M 273 - Einleiten und Einbringen von Rückständen aus Anlagen der Wasseraufbereitung in Abwasseranlagen - Mai 2009
5/2009
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DWA-M 299 - Brennstoffzellen (6/2006)

Merkblatt DWA-M 299 - Einsatz von Brennstoffzellen auf Kläranlagen - Juni 2006
6/2006
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Habitatmodellierung (2010)

Durchgängigkeit und Habitatmodellierung von Fließgewässern - Wiederherstellen der Durchgängigkeit, Funktionskontrolle von Wanderhilfen, Habitate und ihre Beschreibung - Weiterbildendes Studium "Wasser und Umwelt", Bauhaus-Universität Weimar April 2010
4/2010
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