China Top 10 Polyaluminum Chloride Water Treatment Suppliers
China has become a major production base for Polyaluminum Chloride Water Treatment chemicals. Its suppliers serve municipal plants, industrial facilities, and smaller regional systems. This guide introduces ten notable Chinese suppliers and explains why they deserve attention.
The selection considers manufacturing experience, product consistency, technical support, and export performance. It also examines PAC grades, aluminum oxide content, basicity, insoluble matter, and packaging options. These details affect floc formation, sludge volume, and treated-water clarity. A reliable supplier should provide recent test reports, safety data sheets, and batch traceability. Independent laboratory verification remains valuable, especially before a large purchase.
Some manufacturers focus on drinking-water applications. Others specialize in wastewater from textiles, mining, paper, or chemical production. Their strengths are not identical. One company may offer competitive pricing, while another provides stronger formulation support. Delivery capacity also matters when treatment plants operate continuously. A delayed shipment can disturb dosing plans and increase operating pressure.
No ranking is permanently correct. Market conditions change. Product performance can vary between batches, too. This is why buyers should test samples under actual water conditions before signing long-term contracts. Jar testing, pH monitoring, and residual aluminum checks can reveal practical differences that brochures often miss. The following overview aims to support careful supplier comparisons through visible evidence, technical reasoning, and realistic purchasing considerations. It is informative, not a substitute for site-specific engineering advice.
What Is Polyaluminum Chloride and How Is It Used?
Polyaluminum chloride, or PAC, is an inorganic coagulant used in drinking water and wastewater treatment. It contains aluminum-based polymers that destabilize suspended particles. These particles then join into larger flocs. The flocs settle or float more easily.
PAC often works faster than traditional aluminum salts. It can perform across a wider pH range, but performance still depends on water chemistry. Operators usually dilute PAC before dosing it into a rapid-mixing tank. Gentle mixing follows, allowing flocs to grow without breaking. A jar test should guide the dosage. Clear water is not enough evidence. Residual aluminum, sludge volume, and final pH also require testing. Small changes in turbidity can alter the best dose.
In industrial practice, PAC is supplied as a liquid or pale powder. Liquid products simplify dosing, while powder grades usually reduce transport weight. Storage conditions matter. Moisture can damage powder, and excessive heat may affect liquid stability. When evaluating Chinese suppliers, buyers should request concentration data, basic quality certificates, batch records, and independent test results. Technical support matters too. A supplier should explain dosage adjustments for seasonal temperature and turbidity changes. Some treatment teams rely too heavily on standard dosing tables. That approach can fail during heavy rain or sudden industrial discharge. Process trials remain necessary. They are slower, but often more honest.
China Top 10 Polyaluminum Chloride Water Treatment Suppliers - What Is Polyaluminum Chloride and How Is It Used?
| Profile | Typical PAC Form | Typical Al2O3 Content | Typical Basicity | Primary Water-Treatment Application | Common Operating Range | Main Treatment Function |
|---|---|---|---|---|---|---|
| 1 | Drinking-water grade, spray-dried powder | 28–30% | 40–85% | Raw-water clarification and surface-water treatment | Often evaluated at approximately 5–50 mg/L as commercial product, subject to jar testing | Destabilizes colloids and promotes the formation of settleable flocs |
| 2 | Municipal-wastewater grade, powder | 26–30% | 45–85% | Primary clarification and secondary-effluent polishing | Commonly tested at approximately 10–100 mg/L | Removes suspended solids, turbidity and part of the organic load |
| 3 | Industrial-wastewater grade, powder | 24–30% | 40–90% | Textile, chemical, food-processing and general industrial effluent | Dosage varies widely according to color, solids, pH and alkalinity | Coagulates suspended particles, emulsified matter and selected colloids |
| 4 | High-basicity PAC, powder | 28–30% | 70–90% | High-turbidity water and processes where reduced alkalinity consumption is preferred | Usually optimized through jar testing and pH monitoring | Provides rapid coagulation while limiting the reduction of treated-water alkalinity |
| 5 | Low-basicity PAC, powder | 26–30% | 40–60% | Applications requiring strong charge neutralization and fast floc formation | Applied after adjustment of pH and alkalinity conditions | Neutralizes negatively charged particles and assists sedimentation |
| 6 | Liquid PAC solution | 8–18% as Al2O3 | 40–90% | Continuous dosing systems in municipal and industrial plants | Selected according to solution strength, flow rate and target residual turbidity | Enables direct metering without on-site powder dissolution |
| 7 | Low-iron PAC | 28–30% | 40–85% | Drinking-water treatment and processes sensitive to iron coloration | Used where low iron content and clear treated water are important | Coagulates contaminants while minimizing iron-related color and residue |
| 8 | Standard PAC with moderate insoluble matter | 24–28% | 40–85% | General industrial clarification and non-potable water treatment | Typical insoluble matter is often specified at about 1–3% maximum | Offers economical removal of suspended solids and turbidity |
| 9 | High-purity PAC for advanced clarification | 29–31% | 50–90% | High-quality process water, reuse water and advanced pretreatment | Requires control of pH, alkalinity, mixing energy and flocculation time | Produces dense flocs and supports lower residual turbidity |
| 10 | Customized PAC formulation | Specified by contract | Specified by contract | Special wastewater containing color, oil, metals or difficult-to-remove colloids | Defined through laboratory jar tests and pilot-scale trials | Balances aluminum content, basicity, impurities and application-specific performance |
Polyaluminum chloride is a pre-hydrolyzed aluminum-based inorganic coagulant. When added to water, it forms positively charged hydrolysis species and aluminum hydroxide flocs that neutralize particle charges, adsorb contaminants and improve sedimentation or flotation. Actual dosage and product selection depend on raw-water quality, pH, alkalinity, temperature, mixing conditions and regulatory requirements; jar testing should be used before full-scale application.