Spray Dried PAC-02 Powder for Wastewater Treatment Chemicals
Product Overview
Spray Dried PAC-02 Powder is a Polyaluminum Chloride coagulant designed for wastewater treatment chemical applications.
It is supplied as yellow powder and is produced by spray drying technology. The powder form is easy to store, transport, dissolve and dose in wastewater treatment systems.
Wastewater from industrial and municipal sources often contains suspended solids, colloidal particles, fine impurities, organic matter, color bodies and sludge particles. These impurities can remain stable in water and are difficult to remove by natural sedimentation alone.
PAC-02 helps destabilize these particles through chemical coagulation. After dosing and mixing, suspended solids and colloids form larger flocs. These flocs can then be removed through sedimentation, dissolved air flotation or filtration.
Bluwat supplies PAC-02 powder in 25 kg bags with stable factory quality, export packaging and technical support for global wastewater treatment customers.

What Is Spray Dried PAC-02 Powder
Spray dried PAC-02 powder is made from Polyaluminum Chloride solution through a spray drying process. This process converts liquid PAC into stable dry powder under controlled production conditions.
PAC-02 is a yellow powder grade with Al2O3 content of at least 30%, basicity of 45–85% and insoluble matter of no more than 0.1%.
Because of its stable quality and good dissolution performance, PAC-02 is widely used as a wastewater treatment chemical for industrial effluent, municipal wastewater and general water clarification.
Why PAC-02 Is Used for Wastewater Treatment
Wastewater treatment systems need reliable coagulation to remove fine particles, turbidity and suspended solids. Without proper chemical coagulation, many small particles and colloids may stay dispersed in water and reduce clarification efficiency.
PAC-02 helps improve wastewater treatment by neutralizing the surface charge of these particles. Once the particles lose stability, they begin to gather and form micro flocs.
During slow mixing, these micro flocs grow into larger and heavier flocs. If PAM flocculant is added after PAC-02, the flocs can become larger and settle faster.
This makes PAC-02 suitable for sedimentation tanks, clarifiers, DAF systems, filtration pretreatment and industrial wastewater pretreatment processes.
Key Advantages
PAC-02 is produced by spray drying technology and supplied as stable yellow powder. It is convenient for storage, transportation and export supply.
With Al2O3 content of at least 30%, PAC-02 provides strong active content for wastewater coagulation.
PAC-02 has insoluble matter of no more than 0.1%, supporting good dissolution and stable dosing operation.
PAC-02 helps destabilize suspended solids, colloids and fine particles in wastewater, improving solid liquid separation.
PAC-02 helps reduce cloudy appearance caused by fine particles, sludge particles and colloidal impurities.
After proper dosing and mixing, PAC-02 supports visible floc formation and improves sedimentation or flotation performance.
PAC-02 is commonly used before PAM flocculant. PAC-02 starts coagulation, while PAM improves floc size and settling speed.
Bluwat supplies spray dried PAC-02 powder from factory with 25 kg bag packaging, container loading experience and export service.
Technical Specifications
| Product Name | Spray Dried PAC-02 Powder |
| Chemical Name | Polyaluminum Chloride |
| Common Name | PAC Powder |
| Grade | PAC-02 |
| Appearance | Yellow Powder |
| Al2O3 Content | ≥30% |
| Basicity | 45–85% |
| Insoluble Matter | ≤0.1% |
| Type | Spray Dried |
| Main Application | Wastewater Treatment Chemicals |
| Other Applications | Industrial Wastewater, Municipal Wastewater, Sewage Treatment, Water Clarification |
| Packaging | 25 kg bags |
Main Applications
Spray dried PAC-02 powder is widely used in industrial wastewater treatment to reduce turbidity, suspended solids, colloids and fine impurities.
PAC-02 can be used in municipal wastewater plants to improve chemical coagulation, suspended solids removal and effluent clarification.
PAC-02 supports sewage treatment by improving floc formation and helping fine particles settle more efficiently.
Textile wastewater often contains color, turbidity, suspended solids and organic matter. PAC-02 can be used with water decoloring agent and PAM flocculant to improve clarification performance.
PAC-02 helps remove fibers, fillers and suspended solids from paper mill wastewater, supporting clearer effluent and better sludge separation.
Mining wastewater often contains fine mineral particles and high suspended solids. PAC-02 helps improve particle aggregation and solid liquid separation.
PAC-02 can support coal washing wastewater treatment by improving sedimentation of fine coal particles and reducing turbidity.
Food processing wastewater may contain organic matter, protein, oil, starch and suspended solids. PAC-02 can be used as a coagulant for pretreatment and clarification.
For chemical wastewater with unstable colloids and mixed impurities, PAC-02 helps improve coagulation before sedimentation, DAF or filtration.
How PAC-02 Works in Wastewater Treatment
PAC-02 powder is normally dissolved in clean water before dosing.
After the prepared PAC-02 solution is added into wastewater, it disperses quickly under rapid mixing. PAC-02 contacts suspended solids, colloidal particles and fine impurities in the wastewater.
During chemical coagulation, PAC-02 neutralizes the surface 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. If PAM flocculant is added after PAC-02, the flocs can become larger, stronger and faster settling.
Finally, the formed flocs are separated from water through sedimentation, dissolved air flotation or filtration.
Suggested Dosing Process
A common wastewater treatment process using spray dried PAC-02 powder includes the following steps.
First, test wastewater quality, including pH, turbidity, suspended solids, color and treatment target.
Second, prepare PAC-02 powder solution with clean water.
Third, dose PAC-02 solution into wastewater under rapid mixing.
Fourth, allow PAC-02 to fully contact suspended solids and colloidal particles.
Fifth, adjust pH if necessary according to jar test results.
Sixth, add PAM flocculant under slow mixing if larger flocs and faster sedimentation are required.
Finally, separate the formed flocs through sedimentation, DAF or filtration.
The actual dosage should be confirmed by jar testing. Wastewater source, pH, turbidity, suspended solids, organic content, color and treatment target can all affect the best dosage.
PAC-02 and PAM Combination
PAC-02 and PAM are commonly used together in wastewater treatment systems.
PAC-02 works as the coagulant. It destabilizes fine particles and forms micro flocs.
PAM works as the flocculant. It bridges micro flocs into larger flocs and improves settling speed.
The recommended dosing sequence is PAC-02 first and PAM second.
For wastewater with strong color or stable dissolved pollutants, a water decoloring agent may be used before PAC-02 depending on wastewater condition and jar test result.
PAC-02 Compared with PAC-01 and PAC-031
PAC-01 is white powder with Al2O3 content of at least 30% and insoluble matter of no more than 0.1%. It is commonly used for drinking water and high purity water clarification.
PAC-02 is yellow powder with Al2O3 content of at least 30% and insoluble matter of no more than 0.1%. It is suitable for wastewater treatment chemicals, municipal wastewater, industrial wastewater and general clarification.
PAC-031 is yellow powder with Al2O3 content of at least 29% and insoluble matter of no more than 1.5%. It is commonly used for industrial wastewater, sewage treatment and cost effective coagulation.
For wastewater treatment projects that require 30% Al2O3 content and low insoluble matter, PAC-02 is a practical and reliable grade.
Packaging and Storage
Bluwat Spray Dried PAC-02 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 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 Spray Dried PAC-02 Powder
Bluwat Chemicals is a professional manufacturer and exporter of water treatment chemicals. We supply PAC powder, PAM flocculant, water decoloring agent, PolyDADMAC, Polyamine and other chemicals for municipal and industrial wastewater treatment.
Bluwat PAC-02 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 wastewater samples, treatment targets and operating requirements.
Conclusion
Spray Dried PAC-02 Powder is an effective Polyaluminum Chloride wastewater treatment chemical for industrial wastewater, municipal wastewater and sewage treatment. It helps improve chemical coagulation, turbidity removal, suspended solids reduction, floc formation and effluent clarification.
With yellow powder appearance, 30% Al2O3 content, low insoluble matter and stable spray dried quality, PAC-02 provides a good balance of performance and practical application.
Bluwat supplies spray dried PAC-02 powder with factory direct supply, export packaging and technical support for global wastewater treatment customers.










