Our range of iron powders with lower particle size and therefore high reactivity, allows us to quickly break down H2S in plants that use high amounts of nitrogenous biomass such as livestock waste, pollen, slaughterhouse waste and OFMSW (Organic Fraction of Municipal Solid Waste). Lowering the concentration of H2S in the plant allows, in addition to an improvement in the quality of the gas produced, to increase the efficiency of the engine and upgrading systems in biomethane plants, also to improve biological efficiency.