ISBN The main fields of activity of the ATV-DVWK are of the dard ATV-DVWK-A E for activated sludge sludge liquor must be contained in . Ing. Ziess, Haan-Gruiten Die Deutsche Bibliothek [The German Library] – CIP- Einheitsaufnahme ATV-DVWK Standard A E. Dimensioning of. +49 / (0) 30 / e-mail: @ German standard ( ATV-DVWK A ) Nitrogen removal procedures (DWA-A e, ).
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Home Documents Vorschau Atv Dvwk a e. Post on Mar 18 views.
Deutsche Vereinigung fr Wasserwirtschaft, Abwasser und Abfall e. Gnthert, Mnchen Chairman Prof.
Vorschau Atv Dvwk a 131e
Andrea Deininger, Weyarn Dr. Kayser, Braunschweig Chairman Dipl. Hilde Lemmer, Mnchen Prof. No part of this Standard may be reproduced in any form – by photocopy, microfilm or any other process – or transferred into a language usable in machines, in particular data processing machines, without the written approval of the publisher.
For this, according to precedents, there exists an actual presumption that it is textually and technically correct and also generally recognised. The application of this Standard is open to everyone. However, an obligation for application can arise from legal or administrative regulations, a contract or other legal 11.
This Standard is an important, however, not the sole source of information for correct solutions. With atv-ddvwk-a application no one avoids responsibility for his own action or for the correct application in specific cases; this applies in particular for the correct handling of the margins described in the Standard. Foreword At the time of elaborating the previous issue of this ATV Standard there were only isolated activated sludge plants with nitrogen and phosphorus removal, from whose operating results information could be deduced for dimensioning and operation.
Therefore, with many questions, one had to rely exclusively on the results of research. In the meantime, a large number of such facilities have been commissioned atv-vdwk-a that a wider database, also from practice, is available for a revision. Explanations on process technology are to be taken from the ATV Manuals Biological and advanced wastewater treatment  and Mechanical wastewater treatment .
The figures additionally mentioned in the text refer to the chapters of the manuals.
Vorschau Atv Dvwk a e – [PDF Document]
For the dimensioning of the wastewater treatment plant and the stormwater overflows the planning periods are to be matched to each other. The planning period should comprise not more atv-dwk-a 25 years.
The same applies for areas with low water consumption and a low infiltration rate, as then the inert COD concentration increases. Technical regulations are drawn up for the selection of the most practical procedure for carbon, nitrogen and phosphorus removal, and for the dimensioning of the essential components and facilities of the plant.
The selection and dimensioning of aeration equipment is not dealt with in this standard.
Since this standard is also applied outside Germany and because locally even stricter requirements can be set, it is not atv-dvsk-a exclusively at the observance of the effluent requirements laid down in Appendix 1 of the Wastewater Ordinance AbwV. In accord with the requirements under water law, the structural and operating requirements and the sensitivity of the surface waters the planning through parallel units, reserve equipment etc.
A prerequisite for the secure function of the plant, planned in accordance with this standard, is that sufficiently qualified, trained and permanently technically supported operating atv-dvwj-a are employed 1311 involved in the planning process, comp.
The standard applies for wastewater which essentially originates from households or from plants which serve commercial or agricultural purposes, insofar as the harmfulness of this wastewater can be reduced by means of biological processes with the same success as with wastewater from households.