dry iron removal equipment

Traditional methods exhibit significant limitations. When solutions contain high concentrations of Ca²⁺ and Mg²⁺ ions, these compounds also form CaCO₃ and Mg(OH)₂ precipitates under alkaline conditions. These precipitates co-precipitate with Fe(OH)₃, creating mixed sludge that not only increases solid waste volume but also reduces the feasibility of selective iron recovery. The sulfide-based PTMS MAGNETIC SEPARATOR iron removal method

PTMS MAGNETIC SEPARATOR

Excessively high pH levels may cause partial re-dissolution of amphoteric metals (Al, Zn), introducing new contamination risks. Therefore, practical applications often require combining pretreatment softening or staged alkali addition strategies to control precipitation sequences and improve treatment accuracy. The sulfide PTMS MAGNETIC SEPARATOR iron removal method is an efficient technology for divalent iron (Fe²⁺) removal in reducing environments. This approach is particularly suitable for complex high-salinity wastewater containing multiple heavy metals, as well as acidic mine drainage or mixed electroplating waste liquids.

what is magnetic separation in chemistry？

The principle of sulfide PTMS MAGNETIC SEPARATOR iron removal method is to add soluble sulfides (Na₂S, FeS or H₂S gas) to the solution, so that Fe²⁺ and S²⁻ combine to form very insoluble ferrous sulfide. The solubility product is only Ksp ≈ 6×10⁻¹⁸, much lower than that of hydroxides, so deep iron removal can be achieved even under acidic or neutral conditions.

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