You can find information about the technologies we use in our sewage treatment plants here.
Functional Principle and Technology
Cleaning of the wastewater is performed in the fluidised bed or fluidised/floating bed process, comparable to the fixed-bed process. The bacteria in form of a biofilm is not growing on a fixed support medium but on a free floating support medium.
The main feature of our small sewage treatment plants is very stable operation (underload, overload). In addition, the operator saves a lot of costs in the long run since there is no need for technical (spare) parts and low costs for disposal and maintenance..
The SBR cycle is characterised by a chronological process phase sequence. The hydraulic decoupling of the SBR process enables a variable planning of duration, frequency and arrangement of the phases of the cycle. The cycle starts with the filling phase where the first decomposition processes start under anaerobic or anoxic conditions.
This way, oils, greases, swimming, suspended, sinking and dissolved contaminants are removed in order to protect pipelines and aggregates from clogging and extreme wear or in order to meet a certain prescribed outlet value for discharge into the public sewage system.
It is not expected of the operator to optimise the plant himself by measuring the sludge (TS content) and the like, especially because wastewater is produced with different dilution factors at different times. Additionally, the plant should regulate itself over a broad range or be adjustable with easy adjustment work.
For wastewater cleaning, mechanical, biological and chemical procedures are used. In the mechanic-physical cleaning, often designated as first step, undissolved suspended particles are removed from the wastewater. Depending on the density, these particles are separated by sieving, filtering, depositing or flotation.
The biology reactor consists of a system with aeration elements and several sedentary media which are arranged above each other in a certain order. A distribution device is situated at the inlet of the biology reactor, and consists of a compensator and perforated distribution boxes.