High Purity White PAC Powder for Potable Water Treatment
Product Overview
High Purity White PAC Powder is a drinking water grade Polyaluminum Chloride powder designed for potable water treatment and high clarity water purification.
In potable water treatment plants, raw water may contain suspended solids, clay particles, colloidal impurities, algae, fine organic matter and other particles that affect water clarity. Many of these particles are too small to settle naturally and need chemical coagulation before they can be removed effectively.
White PAC powder works as an inorganic polymer coagulant. After dosing into raw water, it helps neutralize the surface charge of suspended particles and colloids. These small particles then gather into larger flocs, which can be removed by sedimentation, flotation or filtration.
Bluwat supplies high purity white PAC powder, commonly represented by PAC-01 grade, for drinking water treatment and potable water clarification applications.

Why High Purity White PAC Powder Is Used for Potable Water
Potable water treatment has higher requirements for chemical quality, dissolution performance and treatment stability. The coagulant used in this process should dissolve well, produce stable flocs and help reduce turbidity before filtration.
High purity white PAC powder is suitable for these applications because it has low insoluble matter and stable Al2O3 content. It can support cleaner dosing solution preparation and more consistent coagulation performance.
For water treatment plants treating river water, lake water, reservoir water or surface water, white PAC powder can help improve raw water clarification and reduce the burden on downstream filtration systems.
Key Advantages
White PAC powder is suitable for potable water treatment and high clarity water purification applications where cleaner appearance and stable quality are required.
With Al2O3 content of at least 30%, PAC powder provides strong active content for coagulation and turbidity removal.
Low insoluble matter helps improve dissolution quality and supports stable dosing operation in drinking water treatment plants.
PAC powder helps remove turbidity caused by suspended solids, clay particles, colloids and fine impurities in raw water.
After proper dosing and mixing, PAC helps small particles form larger and more compact flocs for easier sedimentation and filtration.
The spray dried powder dissolves well in water and can be prepared as a dosing solution for continuous potable water treatment operation.
High purity white PAC powder supports stable coagulation, improved water clarity and smoother filtration performance.
Bluwat supplies white PAC powder directly from factory with stable quality, 25 kg bag packaging and export service.
Recommended Grade
For potable water treatment, PAC-01 white powder is commonly recommended.
| Typical Specification | |
|---|---|
| Product Name | High Purity White PAC Powder |
| Chemical Name | Polyaluminum Chloride |
| Common Name | PAC Powder |
| Recommended Grade | PAC-01 |
| Appearance | White Powder |
| Al2O3 Content | ≥30% |
| Basicity | 45–55% |
| Insoluble Matter | ≤0.1% |
| Type | Spray Dried |
| Main Application | Potable Water Treatment |
| Other Applications | Drinking Water Treatment, Raw Water Clarification, Water Purification |
| Packaging | 25 kg bags |
Main Applications
High purity white PAC powder is used in potable water treatment plants to improve coagulation, reduce turbidity and support clear water production.
PAC powder helps remove suspended solids, colloidal particles and fine impurities before filtration and disinfection.
PAC can be applied to river water, lake water, reservoir water and surface water sources that contain turbidity, clay particles and organic impurities.
Surface water quality may fluctuate due to rainfall, algae growth, seasonal changes and upstream discharge. PAC powder helps improve clarification stability under changing water conditions.
In low turbidity raw water, fine particles may remain stable and difficult to settle. PAC powder helps these particles form larger flocs for easier removal.
During rainy seasons or flood periods, raw water turbidity may increase. PAC powder can help improve floc formation and reduce the load on sedimentation and filtration systems.
White PAC powder can also be used in some industrial water pretreatment systems where high clarity and low insoluble matter are required.
How White PAC Powder Works
White PAC powder is normally dissolved in clean water before dosing.
After the prepared PAC solution is added into raw water, it disperses quickly under rapid mixing. PAC contacts suspended solids, colloids and fine impurities in the water.
During the coagulation stage, PAC neutralizes the charge of these particles. Once the particles lose stability, they begin to form micro flocs.
During slow mixing, the micro flocs grow into larger flocs. These flocs can then settle in the sedimentation tank or be removed by filtration.
This process helps reduce turbidity, improve water clarity and support stable downstream treatment.
Suggested Dosing Process
A typical potable water treatment process using white PAC powder includes the following steps.
First, prepare PAC powder solution with clean water.
Second, dose the PAC solution into raw water under rapid mixing.
Third, allow PAC to fully contact suspended solids and colloidal particles.
Fourth, continue slow mixing to support floc growth.
Fifth, allow the formed flocs to settle in the sedimentation tank.
Finally, send the clarified water to filtration and disinfection.
The actual dosage should be confirmed by jar testing. Raw water turbidity, pH, alkalinity, water temperature, organic matter and treatment target can all affect the best dosage.
PAC Powder and Filtration Support
Filtration is an important step in potable water treatment. However, if raw water particles are not well coagulated before filtration, filter media may become overloaded and operation may become unstable.
High purity white PAC powder helps reduce fine particles before the water reaches the filtration system. Good coagulation can support clearer settled water, better filtration performance and more stable final water clarity.
White PAC Powder Compared with Yellow PAC Powder
White PAC powder, such as PAC-01, is commonly selected for potable water treatment, drinking water clarification and high purity water applications.
Yellow PAC powder, such as PAC-02 and PAC-031, is widely used for municipal wastewater, industrial wastewater, sewage treatment and cost effective clarification.
The final PAC grade should be selected according to water quality, treatment target, local requirements and cost considerations.
Packaging and Storage
Bluwat High Purity White 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 powder quality, solubility and coagulation performance.
Why Choose Bluwat High Purity White PAC 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 white PAC powder is produced under stable quality control to support consistent Al2O3 content, low insoluble matter and reliable coagulation performance.
With factory direct supply, 25 kg bag packaging, container loading experience and technical support, Bluwat can help customers select suitable PAC grades according to actual raw water quality and potable water treatment requirements.
Conclusion
High Purity White PAC Powder is a suitable Polyaluminum Chloride coagulant for potable water treatment and drinking water clarification. It helps remove turbidity, suspended solids, colloids and fine impurities through chemical coagulation and floc formation.
With white powder appearance, high Al2O3 content, low insoluble matter and stable spray dried quality, PAC powder supports clearer water and more stable treatment plant operation.
Bluwat supplies high purity white PAC powder with factory direct supply, export packaging and technical service for global potable water treatment customers.










