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Ferric chloride

 

Dosage: Reduction of the inhibitory effect and precipitation of hydrogen sulphide and ammonia in the biogas plant
Application area: Fermenter or peripheral facilities


Specification:
Liquid mixture of mineral salts


Active substances:
Min. 30 % ferric chloride - FeCl2 (correspond to min. 14 % Fe)


Chemical and physical data:
Description: dark green liquid, characteristic smell
pH-value (in aqueous solution) < 1 (can cause corrosion)
Bulk density: 1360 g/l
Viscosity at 20 °C: 8 mPa.s
Crystallisation temperature: approx. -15 °C


The special effect of ferric chloride liquid:
All the sulphur compounds are reduced to hydrogen sulphide during biogas fermentation, and the nitrogen compounds to ammonium or ammonia. Not only are trace elements precipitated in the fermenter when there are high concentrations of free H2S, it also has a toxic effect on a large proportion of the micro-organisms involved in the biogas production process. Furthermore, gaseous phase sulphur compounds lead to acidification of the motor oils and to damage to the oxidative catalysts in the exhaust gas. Ammonia is even more toxic for the microbiota. High NH3 levels in the fermenter can bring the entire decomposition process to a halt. Increased NH3 concentrations in the biogas lead to precipitation of nitrogen compound in the motor and increased NOx content in the exhaust gas.
BC.ATOX liquid effectively reduces the H2S and NH3 concentrations in the fermenter. Process disturbances are reduced and the trace gases that are harmful for the motor are eliminated.