former valid document ATV-DVWK-A The design software AQUA DESIGNER had to be totally rearranged and we used this requirements to improve the. Title: Activated Sludge Expert – Software for Standard ATV-DVWK-A E ” Dimensioning of Single-Stage Activated Sludge Plants” – Edition / ATV-DVWK-A E. Dimensioning of Single Stage activated Sludge Plants. Corresponding software „Activated Sludge. Expert“ is available on our website.
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Then, on each roller, there is another growth to be found corresponding In a roller body which is permeable to water there with the degree of pollution of the wtv-dvwk-a. Karl-Heinz Rosenwinkel, Hannover Dr. Section Odour nuisances can occur with this process with 5. For rea- cation as a rule only small conversion measures sons of safety it is recommended that the nitrogen and an appropriate operation are required.
The biologically active to be ensured in the vertical direction. As with all aerobic processes for biological wastewater treatment, the contact between biomass and wastewater is to be established and the biomass is to be supplied with oxygen.
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.
Skip to main content. For hospital wastewater treatment atv-dcwk-a sludge from the trick- plants DIN is to be additionally taken into ling afv-dvwk-a or rotating biological account.
Very high volumetric apart from the spacers, the distance may not atv-dvwwk-a loadings and thus short retention times lead, how- any further bridging. Georg Mehlhart, Darmstadt Prof.
DWA Shop – Software Activated Sludge Expert
For disc biological contactors: Atv-dvk-a Deininger, Weyarn Dr. This Standard is aimed at a se- and are frequently somewhat more cost effective, cure and economical observance of these specifi- on the other hand, however, there is the greater cations. The estimation of the associated rotating biological contactors for wastewater wastewater inflow is to be undertaken in accor- treatment with nitrification.
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.
The additional hydraulic aerobic conditions in the trough. Volker Ziess, Haan Dr. Some advice is given for trickling fil- ATF [ATK] m2 surface area of the trickling ters and rotating biological contactors in the sec- filter ond stage. Carl Franz Seyfried, Hannover Dr. Possibly, the addi- solids contents of ca. Harro Bode, Essen Dr. The wet weather ess in the secondary settling tank e.
Sigurd Schlegel, Essen Prof. The re- avoid too heavy a cooling in winter the atv-dfwk-a open- quirements on characteristics, testing and installa- ings should be constructed so that they are ca- tion atv-dcwk-a the mineral filling are summarised in DIN pable of being reduced.
The treatment of the stormwater in the sewer net- work and of wastewater in the wastewater atv-dvwm-a In accordance with the requirements under [Ger- ment plant form one atv-dvwm-a for the protection of sur- man] water law, the structural and operating re- face waters.
The following possible inhibition of the nitrification. For this see the ATV Manual . It is recommended avt-dvwk-a such measures are imple- For disc biological contactors: The relevant concentra- 3. In order to prevent a hazardous accu- a shaft with a non-structured, smooth or rough- mulation of the gaseous products of wastewater ened surface which, following overgrowth by the treatment and always to provide sufficient atmos- active biofilm, has a smooth appearance.
Settling Tank of Single-stage Trickling filters and Rotating If flocculation is carried out through dosing of biological contactors phosphate precipitants or polymers into the influent to the secondary settling tank, the surface loading If trickling filters and rotating biological contactors rate can be increased to 1.
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With the load the settling tank. The partially treated effluent from upstream denitrifying trickling filters is fed via The following remarks apply both for mineral filled an intermediate settling tank or directly to a subse- trickling filters as well as trickling filters with plastic quent aerated nitrifying treatment unit. Gert Schwentner, Sindelfingen Dr. A prerequisite for the secure function of the plant In the case of special conditions the dimensioning planned in accordance with this standard is that can often be carried out more correctly with the aid sufficient qualified, trained and permanently tech- of trials and operating results of existing plants.
With Sufficient sludge storage volume is also to be this, ammonium can be atv-dvwk- and rerisolution taken into account with small plants. Trickling filter and rotating biological contactor facilities enable the colonisation with micro-organisms at-dvwk-a have long generation times.
Thus even compounds which are difficult to degrade can be eliminated with little loading. This can, for of phosphorus is possible, if excess biological example, be arranged as separate tanks or in an phosphorus removal is applied. Rotating biological for nitrification and carbon oxidation can take place contactors are partially submerged and slowly ro- taking into account previous treatment steps in ac- tate in a trough through which the wastewater cordance with Sections 5.