CSO - Biological Desulphurisation Systems

Biological desulphurisation systems use naturally existing sulphur bacteria to reduce H₂S from different gases. With oxygen contents above 2% by volume (typical application: odour control and biogas utilisation with CHPs) they produce sulphuric acid and in applications where the oxygen level is between 0.1 and 1% by volume (biogas desulphurisation at plants that upgrade the biogas to natural gas quality) such systems produce elemental sulphur. Both products are usable as good fertilisers.