Polyferric Sulfate

Aierfuke PFS Product Feature

Polyferric sulfate refers to efficient molysite type of inorganic polymer flocculant,featured by excellent coagulation performance,compact alumen ustum,fast sedimentation rate,good waterpurification effect and water quality,free of harmful substances such as aluminum,chlorine and heavy metal ionsas well as water phase transfer of iron ions,non-toxic.

Aierfuke PFS Powder Use

widely used in purification of urban water supply,industrial waste water,paper-making,printing and dyeing wastewater,etc.;presenting best effect in turbidity removal,decoloring,deoiling,dewatering,degerming,deodorization,algae removal and removal of COD,BOD and heavy metal ions in water.

Method of use：

Solid products should be dissolved and diluted before input.Users can confirm the best input volume by testing and preparing agent concentration based on different water quality.

① Solid product：2—20%。

② Solid product input volume：1—15g/t，

Specific input volume should be subject to flocculation tests andexperiments.

Packing and storage:
Every 25Kg of solid products should be put in one bag with inner plastic film and outer plastic woven bag.Products should be stored in the dry,ventilated and cool place inside the door for fear of damp.Don't store them together with inflammable,corrosive and toxic goods.

Physical and chemical index:

Polyferric Sulfate (PFS) Advantages

1. Strong Coagulation & Flocculation Efficiency

Polyferric Sulfate (PFS) features high polymerization, forming large flocs quickly. It excels in removing suspended solids (SS), turbidity, and organic pollutants, outperforming traditional ferric salts and PAC in many cases.

2. Excellent Decolorization & COD Reduction

PFS is widely used in industries requiring high decolorization efficiency, such as dyeing, textile printing, paper mills, and chemical wastewater. It can significantly reduce COD, BOD, chroma, and heavy metals.

3. Broad pH Range & Stable Performance

Effective in wastewater with pH 4–11, maintaining stability in acidic and alkaline environments.
Suitable for complex or fluctuating wastewater conditions.

4. Lower Sludge Generation

Compared with ferric chloride or aluminum-based coagulants, PFS produces less sludge, reducing sludge treatment and disposal costs.

5. Faster Sedimentation & Shorter Treatment Cycle

The solid flocs settle rapidly, improving throughput of wastewater treatment plants and enhancing process efficiency.

6. Corrosion Lower Than Ferric Chloride

Lower corrosiveness on pipelines and equipment, prolonging plant equipment lifespan.

7. Strong Resistance to Low Temperature

Polyferric Sulfate maintains high coagulation performance even in low-temperature water, making it suitable for winter operations or cold regions.

8. Environmentally Friendly & Compliant

PFS does not introduce aluminum ions, avoiding residual aluminum concerns.
Meets environmental discharge standards for industrial wastewater treatment.

Polyferric Sulfate (PFS) Applications

1. Industrial Wastewater Treatment

PFS is extensively used in:

Textile & dyeing wastewater

Paper-making wastewater

Chemical industry wastewater

Printing & coating wastewater

Petrochemical & refinery wastewater

Electroplating & metal wastewater

Mining & coal washing wastewater

It efficiently removes SS, heavy metals (Cr, Pb, Cu, Zn), emulsified oils, and organic contaminants.

2. Municipal Wastewater Treatment

Domestic sewage

Sludge thickening & dewatering

Primary clarification in WWTPs

PFS supports stable operation and improves sludge settling.

3. Drinking Water Purification

River water

Lake water

Reservoirs

Groundwater

High polymerization improves sedimentation and reduces residual iron.

4. Pretreatment in Industrial Processes

Paint industry

Food processing

Pharmaceutical wastewater

Aquaculture water purification

FAQ

Q1: What is Polyferric Sulfate (PFS) used for?

A1: PFS is a high-efficiency ferric coagulant used primarily for industrial wastewater treatment, municipal sewage, and drinking water purification. It is excellent for treating wastewater with high turbidity, heavy metals, oils, and high chroma.

Q2: What is the difference between PFS and PAC?

A2:

PFS performs better for high-color, high-COD, and oily wastewater.

PAC is commonly used for general turbidity removal.

PFS forms heavier flocs, settles faster, and has better decolorization capability.

PAC is more suitable for drinking water, while PFS is dominant in industrial wastewater.

Q3: What is the recommended dosage of PFS?

A3: Typical dosage is 30–150 mg/L, depending on wastewater quality.
Jar testing is required for accurate dosage optimization.

Q4: Is PFS safe for drinking water treatment?

A4: Yes, high-purity Polyferric Sulfate can be used for drinking water when it meets national standards.
It does not introduce aluminum ions and produces low residual iron.

Q5: How does PFS remove color and COD?

A5: PFS removes pollutants by:

Charge neutralization

Adsorption bridging

Complexation & precipitation

Oxidation of organic compounds

This makes it highly efficient for dyeing and textile wastewater.

Q6: What are the storage conditions for PFS?

A6:

Keep in a cool, dry, and ventilated environment.

Avoid moisture and direct sunlight.

Shelf life: 6–12 months for liquid, 12–24 months for solid.

Q7: Can Polyferric Sulfate be combined with PAM?

A7: Yes. PFS + anionic or cationic PAM significantly improves settling speed and floc strength, especially in high-SS wastewater.

Q8: Does PFS increase the salt content or conductivity?

A8: It slightly increases sulfate concentration but much less corrosive and cleaner than ferric chloride.