The BIO-SIMULATOR is a bench scale pilot plant used to study full scale activated sludge plants. It can be used to both design a new plant and optimise conditions within an existing plant.

Each of the following parameters is individually adjustable:

• air quantity
• water retention time
• biomass volume
• feeding volume
• sludge recycle rate

The unit consists of: a sedimentation tank, an oxidation tank, two pumps (feeding and sludge recycling) and an air flowmeter. The feed flow and the recycle flow are adjustable from 1 to 150 ml/min.