Polyaluminum Ferric Chloride CAS1327-41-9 Water Treatment

Polyaluminum Ferric Chloride (PAFC) is an inorganic polymeric coagulant synthesized by combining aluminum salts (Al³⁺) and iron salts (Fe³⁺) through advanced polymerization techniques. It belongs to the family of composite inorganic polymer flocculants and is widely recognized for its dual advantages derived from both aluminum and iron components.

PAFC is highly effective in water and wastewater treatment due to its stable chemical structure, high charge density, and adaptability to varying water quality conditions. Its development addresses limitations of traditional coagulants like Aluminum Sulfate (alum) or ferric chloride, offering improved performance in turbidity removal, color reduction, and pollutant destabilization.

Features:

High Coagulation Efficiency
Combines the rapid charge-neutralization capability of aluminum salts with the strong adsorption and bridging effects of iron salts, enabling efficient removal of colloidal particles, organic matter, and microorganisms.
Produces dense, large flocs that settle quickly, reducing sedimentation time.

Broad pH Adaptability
Functions effectively across a wider pH range (pH 5–9) compared to conventional aluminum- or iron-based coagulants, minimizing the need for pH adjustment.

Low Residual Metal Content
Generates fewer residual aluminum or iron ions in treated water, enhancing safety for drinking water applications and reducing secondary pollution risks.

Strong Decontamination Capability
Effective in removing heavy metals (e.g., arsenic, lead), phosphates, and organic pollutants (e.g., dyes, oils) through adsorption and precipitation.

Cost-Effective
Lower dosage requirements and reduced sludge production compared to traditional coagulants, lowering operational costs.

Temperature Resistance
Maintains coagulation efficiency in both low- and high-temperature water conditions.

Applications:

Removes turbidity, algae, bacteria, and natural organic matter (NOM) to meet potable water standards.

Reduces disinfection byproduct precursors (e.g., trihalomethanes).

Treats wastewater from industries such as textiles (dye removal), papermaking (lignin and pigment removal), and petrochemicals (oil-water separation).

Effective for heavy metal precipitation in mining or electroplating effluents.

Enhances removal of suspended solids (SS), phosphorus, and organic pollutants in sewage plants.

Improves sludge dewatering efficiency by binding water molecules and reducing sludge volume.

Used in swimming pool water clarification, landfill leachate treatment, and stormwater management.

Applied in the food industry for wastewater recycling and in agriculture for irrigation water purification.