Bio-filter operate on the principle of bio-film, which covers the particles of the material. Volatile pollutants are dissolved together with oxygen in the moistened bio-film and are metabolized by micro organisms under aerobic conditions. Such metabolites (CO2) diffuse through biological layer, are converted into the gas phase and are collected from the device
Biological filters for cleaning of air are designed for volumes within the range of flow from 100 to 10,000 m3/hour, or in the case of cleaning of liquid 1-100 m3/hour
Advantages are low price, low power demand, easy operation, long operating life, easy introduction of the process, variability of solutions, failure-free operation and effectivity in interception of bad matter is above 90%