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Polymeric Aluminium Ferric Chloride (PAFC) - China Suppliers & Factory for Effective Water Treatment Solutions
Core Performance
PAFC deeply integrates the dual advantages of aluminum ions (Al³⁺) and iron ions (Fe³⁺), addresses the limitations of single flocculants, and its core performance is as follows:
1. Aluminum-iron synergy enhances flocculation efficiency by over 30%.
• Double-charge adsorption: Al³⁺ adsorbs negatively charged colloids (such as clay and humic acid) through "electrical neutralization"; Fe³⁺ captures fine particles (such as organic matter and microorganisms) through "net capture", forming flocs that are denser and settle faster (settling velocity ≥ 25 m/h).
• Wide pH Adaptability: Applicable pH range is 4–10 (optimal 6–9), resistant to high turbidity (≤10000 NTU), high salinity (e.g., seawater desalination pretreatment), and high organic matter (e.g., printing and dyeing/paper mill wastewater) water quality, covering over 90% of global water treatment scenarios.
Technical Specifications
| Parameter | Liquid | Solid |
|---|---|---|
| Al₂O₃ Content, % ≥ | 8.0 | 28.0 |
| Mass fraction of Fe, % ≤ | 1.5 ~ 5.0 | 1.5 ~ 5.0 |
| Mass fraction of Fe²⁺, % ≤ | 0.2 | 0.2 |
| Basicity, % | 20 ~ 85 | 20 ~ 85 |
| Mass fraction of insoluble substances, % ≤ | 0.5 | 0.5 |
| pH (10g/L aqueous solution) | 3.5 ~ 5.0 | 3.5 ~ 5.0 |
| Mass fraction of As, % ≤ | 0.0005 | 0.0005 |
| Mass fraction of Cr, % ≤ | 0.005 | 0.005 |
| Mass fraction of Hg, % ≤ | 0.00002 | 0.00002 |
| Mass fraction of Pb, % ≤ | 0.002 | 0.002 |
| Mass fraction of Cd, % ≤ | 0.0002 | 0.0002 |
Applicable Scenarios
PAFC, with its "all-round" characteristics, is widely used in global municipal, industrial, and special water treatment scenarios:
- Municipal sewage: Reduce SS, remove part of COD
- Printing and dyeing wastewater: Decolorization, removal of organic matter
- Electroplating / Chemical Wastewater: Removal of heavy metals (Cr⁶⁺, Cu²⁺) and complexing agents
- Paper mill / Mining wastewater: White water recovery, coal slurry water clarification
- Food processing wastewater: Removal of starch/protein suspended solids
Packaging and Storage
1. Packaging
- Liquid type (PAFC): 200L plastic drum, 1000L IBC tote, liquid bag;
- Solid Type: 25kg woven bag lined with plastic bag (net weight 25kg), 1-ton jumbo bag (net weight 1000kg, can be printed with customer logo/English label);
2. Storage
- Liquid type: Store sealed in a cool and well-ventilated place (temperature ≤ 30°C), avoid direct sunlight, and keep away from fire sources;
- Solid type: Store in a dry warehouse (humidity ≤ 60%), protect against moisture and damage, and stack no more than 2 layers high;
- Shelf life: 12 months for liquid type (sealed), 24 months for solid type (unopened).
Frequently Asked Questions
Q
What is PAFC and how does it differ from regular PAC (Polyaluminum Chloride)?
PAFC (Polyaluminum Ferric Chloride) is a composite coagulant that combines both aluminum ions (Al³⁺) and iron ions (Fe³⁺). Unlike standard PAC which relies solely on aluminum, PAFC leverages the synergistic effect of both metals — Al³⁺ neutralizes charged colloids while Fe³⁺ captures fine particles through net capture — resulting in flocculation efficiency more than 30% higher than single-component flocculants.
Q
What pH range is suitable for PAFC water treatment?
PAFC is effective across a broad pH range of 4 to 10, with optimal performance between pH 6 and 9. This wide adaptability makes it suitable for treating diverse water types including high-turbidity, high-salinity, and high-organic-matter wastewater, covering over 90% of global water treatment scenarios.
Q
What types of wastewater can PAFC treat effectively?
PAFC is highly versatile and is widely applied in: municipal sewage (SS reduction, partial COD removal), printing and dyeing wastewater (decolorization), electroplating and chemical wastewater (heavy metal removal), paper mill and mining wastewater (white water recovery, coal slurry clarification), and food processing wastewater (starch/protein suspended solids removal).
Q
What are the available packaging options for PAFC?
PAFC is available in both liquid and solid forms. Liquid PAFC comes in 200L plastic drums, 1000L IBC totes, and liquid bags. Solid PAFC is packaged in 25kg woven bags (with inner plastic lining) or 1-ton jumbo bags. Custom branding with customer logos or English labels is available upon request.
Q
How should PAFC be stored and what is its shelf life?
Liquid PAFC should be stored in a sealed container in a cool, well-ventilated area (temperature ≤ 30°C), away from direct sunlight and fire sources, with a shelf life of 12 months (sealed). Solid PAFC should be kept in a dry warehouse (humidity ≤ 60%), protected from moisture and physical damage, stacked no more than 2 layers high, with a shelf life of 24 months (unopened).
Q
What are the heavy metal content limits in PAFC to ensure safety?
PAFC meets strict safety standards with tightly controlled heavy metal limits: As ≤ 0.0005%, Cr ≤ 0.005%, Hg ≤ 0.00002%, Pb ≤ 0.002%, and Cd ≤ 0.0002%. These specifications apply to both liquid and solid forms, ensuring the product is safe for use in drinking water pretreatment and municipal wastewater applications.