The absorption stage and the biological stage are installed in one aggregate. In reason of specific heat- and nutrient supply and a special leading of the exhaust, a high biological cleaning achievement is possible. Special pollutants (H2S, NH3) can be removed.

Building designs

- One-stage - Working parallel - Rotunda manner - In front of a biofilter for humidification or temperating the exhaust air


- Polypropylen (PP) - Polyethylen (PE) - Plastic (FRP) reinforced by glas fiber.


Some applications are:

- Local and/or industrial sewage plant - Food industry - Chemical industry - Agriculture - Paper industy - Waste treatment plant