Polyaluminum Chloride

Your Professional Polyaluminum Chloride Supplier

Founded in 2016, Zibo Dingqi Chemicals Co., LTD., headquartered in Zibo, Shandong, China, is a professional manufacturer of various water treatment chemicals, specializing in African countries to provide drinking water resources treatment, sewage treatment and other projects, currently serving more than 30 countries around the world 600+ customers.

At present, the main products are aluminum sulfate, ammonium alum, polyaluminum chloride, polyacrylamide, ferrous sulfate and other five series of pharmaceutical products.

Polyaluminum Chloride Powder
Industrial-grade polyaluminum chloride (PAC) is a cornerstone coagulant in water treatment due to its high efficiency, versatility, and cost-effectiveness. Optimal performance requires tailored
Low Basicity Polyaluminum Chloride
PAC demonstrates high efficiency and broad adaptability in water treatment. Optimal performance requires balancing water quality parameters, process conditions, and cost-effectiveness.
Medium Basicity Polyaluminum Chloride
Usage PReference standard: China National standard GB/T 22627-2014 water treatment agent polyaluminum chloride.
Water Treatment Polyaluminum Chloride
A critical parameter reflecting the effective component of PAC, typically ranging from 10% to 30%. Higher Al₂O₃ content enhances coagulation efficiency but requires dosage adjustments based on water
Drinking Water Grade Polyaluminum Chloride
Compared to industrial-grade PAC, drinking water grade PAC has stricter requirements for purity, heavy metal residues, and impurity content, complying with national standards for drinking water
Industrial Grade Polyaluminum Sulfate
Industrial-grade standard: Typically ranges from 28% to 30% (by mass). Higher Al₂O₃ content enhances coagulation efficiency.
28% Polyaluminum Chloride
By optimizing raw material ratios and process conditions, PAC products can be tailored for diverse applications, including water treatment, papermaking, and industrial processes.
30% Polyaluminum Chloride
COD removal rate: need to match the base degree (usually the base degree 70-85% effect is best);Flocculation rate is related to Al₂O₃ content and molecular weight.
Polyaluminum Chloride for Coal Mine
Applications of Poly Aluminum Chloride (PAC) in Coal Washing Plants Coal Slurry Sedimentation PAC acts as a flocculant, promoting the aggregation of coal slurry particles via electro-neutralization,

Why Choose us

Our Certifications

Our products have obtained ISO triple-system certification, ensuring compliance with international quality management standards.

Well-Experienced Team

We have successfully served over 300 customers across various industries worldwide, demonstrating our extensive experience and expertise in the field.

24-Hour Online Service

We provide prompt fault response and comprehensive technical support. Additionally, we have established regional service teams (e.g., local engineers in Southeast Asia) and are committed to an emergency response time of 24-48 hours to ensure customer satisfaction.

Parameter

Project	Industrial grade (yellow polyaluminum)	Contrast white polyaluminum (high purity)
Alumina (Al₂O₃) content	≥28.0%	≥29.0%-31.0%
Basicity	40%-90%	40%-90%
Water insoluble content	≤0.5%	≤0.1%-0.3%
PH value (10g/L solution)	3.5-5.0	3.5-5.0
Heavy metals (such As Pb and As)	≤0.002%	≤0.001%
Iron (fe) Content	≤1.0%-3.0%	≤0.01%

The Mechanism Of Action Of Polyaluminum Chloride In Water Treatment

Coagulation and Sedimentation: PAC hydrolyzes to form positively charged polymeric ions (e.g., Al₁₃O₄(OH)₂₄⁷⁺), neutralizing negatively charged colloidal particles to form flocs , which are removed via sedimentation or flotation.

Turbidity Removal: Effectively eliminates suspended solids and colloids (e.g., silt, microorganisms), suitable for high-turbidity water sources (e.g., river water, floodwater).

Decolorization: Removes colored substances (e.g., dyes, humic acids) through charge neutralization or adsorption, improving water clarity.

Phosphorus Removal

Al³⁺ reacts with phosphates to form AlPO₄ precipitates, aiding in total phosphorus control in wastewater treatment.

Heavy Metal Removal

Forms hydroxide precipitates or complexes with heavy metal ions (e.g., Pb²⁺, Cd²⁺).

Organic Matter Reduction

Encapsulates dissolved organic matter (e.g., proteins) into flocs, reducing COD (Chemical Oxygen Demand).

Sludge Dewatering

Acts as a conditioning agent to enhance sludge structure and improve dewatering efficiency (e.g., via filtration or centrifugation).

Recautions

1. Dosage Control

Adjust dosage based on raw water turbidity (typically 5–50 mg/L). Overdosing may cause excessive aluminum residue (national standard: ≤0.2 mg/L).
Conduct bench-scale tests (e.g., jar tests) to determine optimal dosing.

2. Risk Mitigation

Aluminum Residue: Long-term excessive intake poses health risks. Optimize coagulation (e.g., adjust pH to 6.5–7.5) or use post-filtration (sand filtration, ultrafiltration) to reduce residues.
Dosing Sequence: Apply PAC first for coagulation, followed by chlorine disinfection to avoid chemical interference.

3. Storage and Transportation

Store in sealed, dry conditions away from alkaline substances.
Liquid PAC must avoid freezing; solid PAC typically has a 2-year shelf life.

4. Synergistic Use with Other Agents

Combination with Polyacrylamide (PAM): Sequential dosing (PAC first, then PAM) reduces PAC consumption and enhances floc strength.
Combination with Activated Carbon: PAC removes colloids, while activated carbon adsorbs dissolved organic pollutants.

5. International Standards Comparison

WHO (World Health Organization): Mandates residual aluminum in drinking water ≤0.2 mg/L, consistent with China's standard.
EPA (U.S. Environmental Protection Agency): Requires aluminum-based coagulants to comply with NSF/ANSI 60 certification (food-safe grade).

Application of Polyaluminum Chloride

Water treatment: One of the primary polyaluminum chloride uses is in water treatment plants. It serves as a highly effective coagulant and flocculant, aiding in the removal of suspended particles, colloids, and other impurities in water. Pac’s ability to form dense flocs helps in the efficient clarification and purification of wastewater, industrial effluents, and municipal drinking water.

Paper production: In the paper industry, one of the significant poly aluminum chlorides uses is as a retention agent. It enhances the retention of fine particles and fillers during the papermaking process, leading to improved paper quality and reduced production costs. Pac’s role in reducing papermaking wastes also contributes to environmental sustainability.

Textile industry: The textile industry utilizes polyaluminum chloride for wastewater treatment during dyeing and finishing processes. Its coagulation properties help remove colorants and organic impurities, ensuring compliance with stringent environmental regulations. By facilitating cleaner water discharge, pac supports eco-friendly practices in the textile sector.

Chemical processes: Pac finds applications in various chemical processes as a catalyst and flocculant. Its unique coagulation abilities enable efficient separation and purification of chemical compounds. In pharmaceutical and chemical manufacturing, pac plays a crucial role in ensuring high-quality product outputs.

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FAQ

Q: Is polyaluminum chloride safe?

A: Polyaluminum Chloride is mildly corrosive. The hazardous effect when ingested is irritation to the mouth and stomach. When exposed to the skin, it might cause itching and skin irritation. Contact with the eye can cause eye irritation, redness, and watering.

Q: How does polyaluminium chloride react with water?

A: Polyaluminium Chloride is an acidic solution. Classified as corrosive at higher concentrations, it is typically yellow in colour. Polyaluminium Chloride is miscible with water at all concentrations although dilute solutions hydrolyse to precipitate Aluminium Hydroxide (Al(OH)3).

Q: What is the shelf life of polyaluminum chloride?

A: Polyaluminum chlorides should be stored in a tightly closed container and kept indoors or above freezing. When stored properly, polyaluminum chlorides can have a shelf life of approximately 12 months, depending on storage conditions and mixture components.

Q: Does Polyaluminium chloride reduce pH?

A: Polyaluminium chloride (PAC)reduces pH and turbidity, with optimal effects at 2.5 mg/L. Impedance spectroscopy confirms 2.5 mg/L as the best PAC concentration.

Zibo Dingqi Chemicals Co., Ltd. is one of the most professional polyaluminum chloride manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to wholesale high-grade polyaluminum chloride from our factory.

Drinking Water Grade Polyaluminum Chloride, chemical for industrial wastewater, chemical for water balance

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