Abstract
DMT has developed a process for biological desulfurization at low pH for the treatment of biogas. This process (BioSulfurex^®) is pH, temperature, nutrient and oxygen controlled. During an intensive research period the elimination capacity (EC) and removal efficiencies (RE) at different process conditions were determined. The effect of variations in H₂S loading, cleaning procedures and operational stops are demonstrated with field data. The next step in the development of biological desulphurisation of biogas is the introduction of the DMT-HS packing, introducing EC’s of 500 gH₂S/m³/h or more. This system is self-cleaning, produces mainly solid elemental Sulphur, has no chemical need and no or minimum supply water requirement.

Print