About us



The company BiogasGT Ltd., established in 2013, offers one of the most effective preparations for desulphurisation and for the supply of trace elements necessary for the production of biogas.



Our product FeSfix (hide info)

FeSfix is the latest generation's preparation in powder form, developed in cooperation with German scientific institutions. It works on the basis of the iron oxides (FeO, Fe203 ) which binds hydrogen sulphide (H2S) contained in ferments during the process of anaerobic fermentation in biogas plants (Fig. 2).

FeO + H2➙ FeS + H2O
2H2S + O2  2S + 2H2O   adding the air
2Fe3+ + 3S2- = 2FeS + S

Additional desulphurisation methods using the principle of adsorption by activated carbon do not constitute an economically optimal way. It is well known that H2S has got a hampering effect on the process of methanogenesis, and H2S also displaces trace elements necessary for methanogenic bacteria. This results in a significant drop in biogas production. Therefore, it is best to place the actual biogas desulphurisation process in the process of anaerobic fermentation.

Benefits of using FeSfix:

  • Formation of sulphides already in ferments and prevention of generation of increased amounts of H2S.
  • The process of methanogenesis is no longer hampered by a high concentration of H2S.
  • Limitation of corrosive effects on concrete and metal parts of equipment.
  • Improved availability of trace elements to bacteria and the associated higher biogas yield.
  • There is no ferment salinity as in the case of using toxic iron chloride (FeCl2).
  • FeSfix does not contain the highly toxic CrVI when compared with other preparations (ferrous hydroxide).
  • The actual sulphur remains in the digestate and is then applied to the soil as a valuable sulphur fertiliser.
  • A great benefit is the high content of trace elements (Co, Ni, Cu, Mn, Zn,B,V,Al) in the FeSfix preparation which optimises the process of anaerobic fermentation.
  • Nickel is a major component of the F420 and F430 coenzymes (Fig. 1) which are important carriers of hydrogen in the process of methanogenesis.

  • The resulting separate becomes a valuable substrate for growing mushrooms thanks to increased sulphur and iron content.
  • Reduced dosage of trace elements and the associated financial savings.
  • FeSfix contains 50% Fe which means low daily doses compared to other preparations of Fe(OH)3, Fe(OH)2, FeCl2  where iron concentration ranges between 9 and 30 %.
  • The cheapest, most effective way of biogas desulphurisation and ferment stabilisation in the market. 

Technical specification - Safety Material Data Sheet /SMDS/

Technical specification - Technical Data Sheet /TDS/