Biofilter for biological degradation of organic and inorganic substances in air
The problem of emissions of unpleasant smells and other potentially toxic gases and pollutants is becoming more important. Among the possible plants able to reduce these emissions, biofilters are the most interesting ones. They base their operating principle on the biological degradation of the compounds contained in the effluent.
Biofilters contain a mass of organic material (peat, compost, heather, bark or their mixtures) whose thickness is normally 1.0 – 1.5 m. In this substrate we select and develop a bacterial microflora able to degrade the molecules of the polluting compounds (organic and inorganic) contained in the air to be treated. In the biofilter therefore, pollutants are metabolized by bacteria that live in the bed. In detail, the air to be treated is collected by the environment to heal and sent to the scrubber that remove coarse particle. The scrubber also deals with humidification required for the development of the bacterial flora. The treated air comes out from the top of the scrubber and is sent inside the BIOCLEAN where there is the contact between the pollutants and bacteria that metabolize and turn them into odorless compounds (water and carbon dioxide).
In order to obtain a good functionality of the biofilter, is essential to create an habitat that is adequate for the development of the microflora. In particular:
The last factor is very important because micro-organism are able to adsorb nutrients from the aqueous phase only. An insufficient quantity of water causes the drying of the material and the loss of biological activity. For this reason, humidification plays a key role and takes place by implementing an automatic spraying system over the biofilter.
The BIOCLEAN filter:
Tecnosida® is a perfect partner for planning and execution of ordinary and extraordinary maintenance services required to :
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