ATV-DVWK-A 131 PDF
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Karl-Heinz Rosenwinkel, Hannover Prof. Volker Ziess, Haan Dr. The structural aspects which effect the dimension- ing or which are assumed for the dimensioning are With trickling filters or rotating biological contactors dealt with within the scope of this standard. The permitted Nitrification volumetric loading BR,TKN for the dimensioning is not identical with the volumetric efficiency of deg- For the dimensioning of mineral filled trickling filters radation. An as even free access to the biofilm and that waste sludge as possible complete wetting of the filter mate- can be removed with the wastewater.
Recommended values for the following closure. Further ahv-dvwk-a surface loading rate of the secondary settling planning aspects of construction and design, for tank may not exceed 0. Sedimentation of the individual small par- measures to raise the alkalinity as a rule are not ticles here is of decisive significance for the reten- necessary with trickling filters and rotating biologi- tion performance.
Gert Schwentner, Sindelfingen Dr. Karlheinz Krauth, Stuttgart Dipl. With greater infiltration only pre-anoxic at-dvwk-a itself is covered in an rates groundwater containing nitrate or with in- anoxically operated trickling filter. Aeration also takes place passively during the emerged phase.
If required this dimensioning values are recommended: If nitrification takes place in a second trick- between 1, and 50 PT. Helmut Resch, Weissenburg Chairman Dipl. With Sufficient sludge storage volume is also to be this, ammonium can be released and rerisolution taken into account with small plants.
In practical dimensioning the following procedure has proved its worth: 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.
The rele- TKN 11 10 10 P 1. The overall necessary theoretical surface is calcu- lated from the BOD5 daily load flowing into the re- In the first place the following listed dimensions are actor and the TKN daily load flowing into the reac- to be determined or specified for the dimensioning: For the dimensioning of the quirements and the sensitivity of the surface wa- wastewater treatment plant and the stormwater ters through parallel units, reserve equipment etc.
Reinhard Beer, Cottbus Dr.
Andrea Deininger, Weyarn Dr. In order to as mineral filler material for trickling filters. COD than with domestic wastewater can arise. If the data are insufficient or the expense for inves- For dimensioning, the following important numeri- tigation, for example with small plants, are in no re- cal values are required from the influent to the bio- lation to the use, loads and concentrations can be logical reactor, if applicablewith the inclusion of the determined on the basis of connected inhabitants return flows atv-fvwk-a sludge treatment comp.
With trickling filters the dimensioning depends on the filler material used.
DWA Shop – Software Activated Sludge Expert
Help Center Find new research papers in: To be on the safe It can be an advantage to feed the internal recircu- side, the ammonium content in the effluent for lation via the primary settling tank.
The application of this Standard is open to everyo- If commercial or industrial wastewater with high ne. For disc biological contactors: The estimation of the associated rotating biological contactors for wastewater wastewater inflow is to be undertaken in accor- treatment with nitrification.
The necessary theoretical surface ARC is deter- mined as follows: With this loading roller biological contac- sumed generally for the dimensioning in tors are to be designed for specific theoretical sur- accordance with Sections 6.
Manfred Roth, Stuttgart Dr.
The re- avoid too heavy a cooling in winter the air open- quirements on characteristics, testing and installa- ings should be constructed so that they are ca- tion of the mineral filling are summarised in DIN pable of being reduced.