About Iron chloride
Iron-(II)-chloride (ferrous chloride) is a by-product of steel pickling or the production of titanium dioxide. In addition to its use in the chemical industry, e.g. for the production of iron oxide pigments, it is also used in other areas. In water treatment, iron-(II)-chloride is used to remove heavy metals and phosphates. It is also used in the production of biogas to precipitate hydrogen sulfide. The versatile use of iron-(II)-chloride reduces the amount of waste and contributes to the efficient use of resources in industry.
(Waste) Water management
Our iron-(II)-chlorides are important precipitants in water management. Iron chloride is used to purify drinking water and to treat municipal and industrial waste water. It is mainly used for the precipitation of phosphate and the elimination of hydrogen sulfide. This ensures that eutrophication (over-fertilisation) of surface waters is prevented, and that harmful and malodorous substances are removed. But also in the desulphurisation of digester gases, Ferro Duo products can avoid health risks and achieve longer machine running times.
Iron-(II)-chloride is used in the biogas industry as an additive to optimise the fermentation of organic substances. During the biogas production process, hydrogen sulfide, which is harmful to the methane-forming microorganisms, can form. Iron-(II)-chloride is able to solve this problem by selectively binding hydrogen sulfide as a precipitant. The dosage of ferrous chloride in biogas production depends on various factors, such as the type of organic matter. When dosed correctly, it is an important component in optimising biogas production, as it helps to improve efficiency and at the same time prevents acidification of the engine oil in combined heat and power plants (abbreviated CHP), which can lead to capital engine damage.