Ferrous Sulphate Heptahydrate (FeSO₄·7H₂O) is a highly effective chemical used in wastewater treatment
for
coagulation, reduction, and heavy metal removal. It is widely applied in municipal and industrial
treatment
plants to improve water quality by removing suspended solids, phosphates, and toxic contaminants.
When added to wastewater, it reacts with fine suspended particles and dissolved impurities, forming
larger
flocs that settle quickly in clarifiers or can be easily removed through filtration. This process
significantly
reduces turbidity and enhances the overall efficiency of the treatment system.
Ferrous Sulphate is also an excellent phosphorus removal agent. It reacts with phosphate ions to form
insoluble
iron phosphate compounds, preventing excess nutrients from being discharged into natural water bodies
and
helping to reduce the risk of algal blooms.
Another major application is the treatment of wastewater containing hexavalent chromium (Crâ¶âº). Ferrous
Sulphate converts the highly toxic Crâ¶âº into the safer trivalent chromium (Cr³âº), which can then be
precipitated and removed through conventional treatment processes.
Due to its reliability, cost-effectiveness, and versatility, Ferrous Sulphate Heptahydrate is widely
used in
industries such as electroplating, textiles, mining, paper, chemical manufacturing, and municipal
wastewater
treatment facilities.
