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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 790 - TRwS unterirdische Behälter (12/2010)

Arbeitsblatt DWA-A 790 - Technische Regel wassergefährdender Stoffe (TRwS) - Bestehende einwandige unterirdische Behälter aus metallischen Werkstoffen - Dezember 2010
12/2010
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DWA-Themen - Ölaufnahmegeräte (5/2007)

DWA-Themen - Anwendung von Ölaufnahmegeräten auf Binnen- und Küstengewässern - Mai 2007
5/2007
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DWA- M 607 - Altgewässer (6/2010)

Merkblatt DWA- M 607 - Altgewässer - Ökologie, Sanierung und Neuanlage - Juni 2010
6/2010
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7/2010
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DWA-M 261 - Überspannungsschutz (4/2011)

Merkblatt DWA-M 261 - Überspannungsschutz auf Anlagen zur Abwasserbehandlung - April 2011
4/2011
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DWA-M 150 - Datenaustauschformat (4/2010)

Merkblatt DWA-M 150 - Datenaustauschformat für die Zustandserfassung von Entwässerungssystemen - April 2010; Stand: korrigierte Fassung November 2018
4/2010
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