聚合硫酸鐵(Poly Ferric Sulfate)PFS

⏹︎ Product Features

Polyferric Sulfate (PFS) is an acidic polymeric compound with the molecular formula [Fe₂(OH)ₙ(SO₄)₃–n/2]ₘ, where n > 2 and m = f(n). In aqueous solution, it exists as a variety of polymeric iron complexes such as [Fe₂(OH)₃]³⁺, [Fe(H₂O)₆]³⁺, and [Fe₃(OH)₃]⁶⁺. These complexes have excellent coagulation properties and are prone to forming colloids. The molecules form a spatial polymeric structure of multinuclear complex ions.

Upon dissolution in water, PFS hydrolyzes rapidly, producing highly effective multinuclear hydroxy-complex cations such as Fe[Fe(OH)₂]ₙ(3+n)⁺. During the water purification process, it exhibits strong abilities to neutralize surface charges on suspended particles and to form bridging structures between them.

• High Coagulation Efficiency

With a high concentration of trivalent iron (Fe³⁺) ions, PFS rapidly forms large amounts of flocs, effectively removing suspended solids, colloids, and organic matter.

• Wide Applicable pH Range

Effective across a wide pH range (approximately 4–11), with optimal performance under mildly acidic to neutral conditions.

• Strong Decolorization and Phosphorus Removal Capability

It shows excellent performance in decolorizing and removing phosphorus from dyeing wastewater, industrial effluent, and domestic sewage.

• Relatively High Corrosiveness

Due to the presence of free acids, corrosion resistance is required for storage and handling equipment.

• Fast Settling and Low Sludge Volume

The dense flocs settle quickly, reducing the cost and volume of sludge treatment.

• Good Solubility and Easy to Use

Available in liquid or powder form, it dissolves quickly and does not easily clog equipment.

⏹︎ Applications

• Demulsifier for Waste Emulsions, Emulsified Liquids, and Oily Wastewater

Used to break emulsions and separate oil from water in waste emulsions, emulsified wastewater, and oily wastewater.

• Drinking Water Treatment

Removes turbidity, color, iron, manganese, algae, and other impurities to improve water clarity and stability.

• Sludge Dewatering and Solid-Liquid Separation in Biological (Thickened) Sludge

Helps with sludge dewatering, increases the solid content of sludge cakes, and reduces the cost of downstream sludge treatment.

• Municipal Wastewater Treatment

Used for phosphorus and organic matter removal in domestic sewage, effectively reducing COD and BOD levels.

• Industrial Wastewater Treatment

Widely applied in coagulation, sedimentation, and decolorization processes for wastewater from industries such as papermaking, dyeing, slaughterhouses, breweries, chemical plants, steel, and coal industries.

• Environmental Engineering

Used in projects such as river remediation and the treatment of eutrophic lakes.