BIOVENT® air purification system
Applicationback to top
The BIOVENT® - air purification system has been designed for removal of air volatile contaminants discharged from municipal and industrial plants. Reduction of organic and inorganic compounds, such as NH3, H2S, mercaptanes, amines, aldehydes, ketones, organic acids etc. is possible due to application of a proper filtration bed. The above mentioned compounds are typically present in odours emitted from waste water treatment plant structures and appliances, pumping stations, food processing industry, paint shops and foundries etc. The application of BIOVENT® system eliminates unpleasant emission of contaminants, which in practice means improvement of the environment.

Operating principlesback to top
In the biological process of air purification odours are removed by means of specialized micro-organisms immobilised onto a natural bed. Such factors as the proper bed structure, correctly chosen micro-organisms, size of appliances, humidity and temperature influence the process. The efficiency of biofiltration mainly depends on the biofilter load. Correct biofilter design leads to 100% odour reduction. Every 3-5 years, it is necessary to regenerate or exchange the biofilter bed. The spent media material poses no threat to the environment because it could be composted and then used directly as natural fertilizer.

Structureback to top
The air purification system BIOVENT® consists of a fan, a humidifier and a biofilter. Contaminated air is forced by a fan through a humidifier where it reaches the necessary moisture content. Then the air is passes through a biofilter containing selected micro-organisms where pollutants are absorbed and undergo biodegradation. The purified air is discharged to the atmosphere. The biofilter housing is made of GRP which provides good strength, corrosion resistance and an aesthetic appearance.


The purification process parameters are controlled automatically which decreases operational costs significantly. The system is equipped with fault detection and alarms. Optionally alarm signals can be transmitted to a remote operator by radio or phone lines. The biofilter size depends on the air flow and concentration of pollutants and is dimensioned so that full reduction of odour components can be achieved. Biofilters can be extended during operation by adding modules.


Technical databack to top
BIOVENT® TYPE FLOW MAX [m3/h] POWER INSTALLED [kW] DIMENSIONS [t] BIOFILTER MASS [Mg]
BW-100 100 1,0 2,3 x 2,3 3,0
BW-400 400 1,5 2,5 x 3,5 7,5
BW-750 750 1,5 2,5 x 3,5 10,0
BW-1000 1000 1,8 2,5 x 3,5 12,5
BW-1500 1500 2,5 3,5 x 4,5 15,0
BW-2000 2000 3,3 3,5 x 4,5 20,0
BW-3000 3000 8,0 5,3 x 6,5 35,0
BW-6000 6000 15,0 5,3 x 6,5 55,0

Advantagesback to top
  • low investment and operational costs,
  • no permanent supervision needed,
  • automatic process control,
  • reliability independent on weather,
  • resistance to corrosion and temperature changes.