Übersetzung für "Biologische stufe" in Englisch

The biological phase represents the heart of the process.

In order to maintain a minimum throughput it is therefore necessary to over-dimension the biological stage.

This included extension of the biological stage (conversion of the existing secondary clarification) for the use of compressed air aeration.

For the biological stage, it was intended to establish findings in respect of process control as a basis for plant design.

A/I methods employed at the biological stage will increase the plant's capacity to 19'000 inhabitants.

The biological stage of the RBC was cored and unnecessary openings were sealed off.

The method according to the invention is therefore particularly suitable as the first stage in a multi-stage gas scrubbing plant whereby the subsequent stage can consist of, for example, a trickle filter filled with activated charcoal.

It is a customary and generally-recognized rule of the art that the continuous, but usually not constant, flow rate of the waste water which is introduced into the biological stage of a waste water treatment plant is not manipulated.

This and the complete or partial return of the bacteria mass, too, to the biological stage considerably favor adaptation of the microorganisms to these substances and accelerate biological decomposition reactions.

It is an object of the present invention to provide a method of continuously denitrifying the sewage without recycling a part-stream of the biologically purified water, with the oxidized nitrogen dissolved therein, to an upstream biological stage, and without having to switch over the hydraulic flow of water.

It has proved advantageous to free the waste water of solids by filtration or other known mechanical processes before introducing it into the biological stage.

This process generally involves a biological treatment with secondary settlement or another process in which the require ments established in table 1 of Annexe 1 are respected.

This treatment generally involves a biological treatment with a secondary settlement or another process in which the requirements defined in table 1 on Annexe 1 arc respected.

The cleaning takes place via an upstream biological treatment stage, an oxidative treatment by means of ozone/UV and a downstream biological stage implemented as submerged trickling filter.

It is designed solely for the purpose of dirt extraction, and doesn't contain a biological component, and only requires a minimum of 10 kg living stones in the aquarium.

Additional reaction tanks in the pre-treatment area are required if an up-flow denitrification (see also biological step) is foreseen.

Signal conditioners from the K- or SC-Systems can be used as interface modules, as the biological stage and the secondary sedimentation basin do not pose a risk of explosion.

With the THIOPAQ®process the hydrogen sulphide is separated from the permanent gas and will be separated as elementary by means of a biological treatment.

Due to the middle sludge index of 75 ml/g the biological stage can be operated with an increased activated sludge content of more than 5 g/l, so that operationally there are still small reserves.

The biological stage and secondary treatment stage are usually the weak points of a waste- water treatment plant which might reach its capacity limit and can‘t guarantee process stability anymore because of changing parameters of the incoming sewage and stricter regulations about effluents.

Here the existing biological stage should be replaced by a two-stage activated sludge biology with complete nitrification and denitrification to the greatest possible extent.