PAFC CAS 1327-41-9 Industrial Polymeric Coagulant

Polyaluminum Ferric Chloride (PAFC) is an inorganic polymeric coagulant synthesized by combining aluminum salts (Al³⁺) and iron salts (Fe³⁺). It integrates the advantages of both aluminum-based coagulants (e.g., PAC) and iron-based coagulants (e.g., PFS), offering enhanced coagulation efficiency and adaptability.

PAFC is widely used in water and wastewater treatment due to its stable chemical structure, high charge density, and rapid formation of dense flocs. Its development addresses limitations of traditional coagulants, such as narrow pH tolerance and residual metal ions, making it a versatile solution for modern environmental challenges.

Features:

Combines the rapid flocculation of aluminum salts with the strong adsorption and dense flocs of iron salts, improving sedimentation speed and effluent clarity.

Effective across pH 4–10, reducing the need for pH adjustment in most water types.

Minimizes secondary pollution risks, crucial for drinking water safety and compliance with regulations (e.g., WHO guidelines for residual Al <0.2 mg/L).

Removes colloidal particles, organic matter, and dyes effectively, achieving >90% turbidity reduction in optimal conditions.

Performs well in low-temperature (≤5°C) or high-salinity water, unlike conventional coagulants that may fail under such conditions.

Less corrosive to equipment compared to FeCl₃, lowering maintenance costs.

Lower dosage requirements (typically 10–50 mg/L) translate to operational savings.

Applications:

Removes suspended solids, pathogens, and organic contaminants.

• Textile Dyeing: Degrades azo dyes; achieves >85% COD removal.
• Petrochemical: Efficient in oil-water separation and heavy metal adsorption (e.g., 80–95% Pb²⁺ removal).
• Paper/Pulp: Reduces lignin and suspended fibers, lowering BOD by 70%.

Treats sewage and stormwater, removing phosphorus (60–80% reduction) to combat eutrophication.

Enhances dewatering efficiency, reducing sludge volume by 30–50% and lowering disposal costs.

• Mining: Treats acid mine drainage (AMD) by neutralizing pH and precipitating metals.
• Food Processing: Clarifies wastewater with high organic loads (e.g., dairy effluent).

• vs. PAC: Better performance in low-temperature/high-turbidity water.
• vs. PFS: Less residual color (no yellowing of water) and lower corrosion.
• vs. Alum: Lower dosage, faster settling, and broader pH range.

• Handling: Use PPE to avoid inhalation/contact; store in corrosion-resistant containers.
• Regulatory Compliance: Meets EPA and EU standards for coagulants in drinking water.
• Research Trends: Nano-PAFC hybrids and bio-polymer composites for enhanced pollutant targeting.

Our main products include Polyaluminum Chloride ，Aluminum Chlorohydrate，Polyferric Sulfate，Biochemical Bacteria，Polyacrylamide PAM and Decoloring Agent.