Aluminium Polychloride Powder for Drinking Water Purification
Product Overview
Aluminium Polychloride Powder is another common name for Poly Aluminium Chloride Powder, also known as PAC powder. It is an inorganic polymer coagulant widely used in drinking water purification and water clarification processes.
Raw water used for drinking water production may contain turbidity, suspended solids, clay particles, colloids, algae, organic matter and other fine impurities. These particles are usually very small and difficult to remove by natural settling alone.
Aluminium Polychloride powder helps destabilize these particles through chemical coagulation. After dosing and mixing, small impurities gather into larger flocs. These flocs can then be removed by sedimentation and filtration, helping produce clearer water for downstream treatment.
Bluwat supplies spray dried Aluminium Polychloride PAC powder in different grades. For drinking water purification, PAC-01 white powder is commonly recommended because of its high Al2O3 content, low insoluble matter and stable quality.
Why Aluminium Polychloride Is Used in Drinking Water Purification
Drinking water purification requires reliable clarification before filtration and disinfection. If raw water turbidity is high or unstable, the filtration system may face higher load, shorter filter run time and less stable water clarity.
Aluminium Polychloride powder can help improve coagulation efficiency and floc formation. It helps fine particles become easier to settle and filter, supporting smoother operation in water treatment plants.
Compared with some traditional coagulants, PAC can offer good coagulation performance, fast reaction and wide water quality adaptability. It is suitable for many raw water sources, including river water, lake water, reservoir water and surface water.
Key Advantages
Aluminium Polychloride powder helps remove turbidity by gathering fine suspended particles and colloids into larger flocs.
PAC supports the formation of compact and visible flocs, improving sedimentation and filtration performance.
The powder dissolves well in water and can be prepared as a dosing solution for continuous water treatment plant operation.
PAC-01 white powder has low insoluble matter, making it suitable for drinking water purification and high clarity water treatment applications.
The spray dried powder form is convenient for storage, shipment and dosing solution preparation.
Aluminium Polychloride powder can be used for different raw water sources and changing water quality conditions.
Bluwat supplies PAC powder directly from factory with stable quality, packaging and export service.
Recommended Grade for Drinking Water
For drinking water purification, PAC-01 white powder is usually selected.
Typical PAC-01 specification:
| Product Name | Aluminium Polychloride Powder |
| Common Name | Poly Aluminium Chloride Powder |
| Abbreviation | PAC Powder |
| Grade | PAC-01 |
| Appearance | White Powder |
| Al2O3 Content | ≥30% |
| Basicity | 45–55% |
| Insoluble Matter | ≤0.1% |
| Process | Spray Dried |
| Application | Drinking Water Purification and Raw Water Clarification |
PAC-01 is suitable for water treatment applications where high purity, low insoluble matter and stable clarification performance are required.
How Aluminium Polychloride Works
The water purification process usually includes coagulation, flocculation, sedimentation, filtration and disinfection.
Aluminium Polychloride is mainly used in the coagulation stage.
First, PAC solution is dosed into raw water under rapid mixing.
Second, PAC interacts with suspended particles and colloids.
Third, the particles lose stability and begin to gather into micro flocs.
Fourth, during slow mixing, the micro flocs grow into larger flocs.
Finally, the flocs are removed through sedimentation and filtration.
This process helps reduce turbidity and improve water clarity before the next treatment steps.
Typical Applications
Aluminium Polychloride powder is used in drinking water plants to improve coagulation and reduce raw water turbidity.
PAC powder can clarify river water, lake water, reservoir water and surface water before filtration.
When selected and used according to local regulations and treatment requirements, PAC can support potable water production by improving clarification performance.
PAC powder is suitable for surface water sources with clay particles, fine suspended solids, algae and colloidal impurities.
For low turbidity raw water, PAC can help improve particle aggregation and support stable filtration.
When raw water becomes cloudy during rainy seasons or seasonal changes, PAC can help improve sedimentation and reduce treatment pressure.
Aluminium Polychloride powder can also be used for process water clarification and industrial water pretreatment.
Dosing Method
Aluminium Polychloride powder should normally be dissolved in clean water before dosing.
A typical use method includes the following steps.
First, prepare PAC solution in a dosing tank.
Second, dose the solution into raw water under rapid mixing.
Third, allow complete contact between PAC and suspended particles.
Fourth, continue slow mixing to form larger flocs.
Fifth, allow the flocs to settle in the sedimentation tank.
Finally, send the clarified water to filtration and further treatment.
The dosage should be adjusted according to raw water turbidity, pH, alkalinity, water temperature and treatment target. Jar testing is recommended before full scale operation.
PAC and Filtration Performance
PAC powder supports filtration performance by reducing fine particles before water enters the filter.
When coagulation and sedimentation work well, less suspended matter enters the filtration unit. This can help reduce filter load and support more stable operation.
For drinking water treatment plants, good coagulation control is important for maintaining consistent water clarity.
Packaging and Storage
Bluwat Aluminium Polychloride PAC powder is packed in 25 kg bags with inner plastic bag and outer woven bag.
Storage recommendations:
- Store in a cool, dry and well ventilated warehouse.
- Keep away from moisture and direct sunlight.
- Keep the bags sealed before use.
- Avoid exposure to heat and incompatible materials.
- Use the product promptly after opening.
Proper storage helps maintain product solubility and coagulation performance.
Why Choose Bluwat Aluminium Polychloride Powder
Bluwat Chemicals is a professional manufacturer and exporter of water treatment chemicals. We supply PAC powder, PAM flocculant, PolyDADMAC, Polyamine, water decoloring agent and other chemicals for water and wastewater treatment.
Bluwat PAC powder is produced under stable quality control and supplied in different grades for drinking water, municipal wastewater and industrial wastewater applications.
For drinking water purification projects, Bluwat can support customers with product selection, jar test guidance and export supply service.
Conclusion
Aluminium Polychloride Powder is an effective PAC coagulant for drinking water purification. It helps remove turbidity, suspended solids and colloidal particles through coagulation and flocculation.
For raw water clarification and potable water treatment processes, PAC-01 white powder with high Al2O3 content and low insoluble matter is a suitable choice.
Bluwat supplies spray dried Aluminium Polychloride PAC powder with factory direct supply, stable quality and technical support for global water treatment customers.