PAC-02 PAC Powder 30% Al2O3 for Sewage Treatment
Product Overview
PAC-02 PAC Powder 30% Al2O3 is a spray dried Polyaluminum Chloride powder designed for sewage treatment and wastewater coagulation.
Sewage treatment plants often receive wastewater containing suspended solids, colloidal particles, organic matter, phosphorus, sludge particles and mixed industrial discharge. These impurities may 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, fine particles and colloids form larger flocs that can be removed by sedimentation, dissolved air flotation or filtration.
Bluwat supplies PAC-02 as yellow powder with Al2O3 content of at least 30%. It is suitable for municipal sewage treatment, industrial wastewater clarification, mixed wastewater treatment and general water treatment coagulation.

Why PAC-02 Is Used for Sewage Treatment
Sewage treatment systems need stable solid liquid separation to reduce turbidity, suspended solids and visible impurities in treated water.
When wastewater contains fine particles and unstable sludge, the clarifier may not work efficiently. PAC-02 can improve coagulation and floc formation, making particles easier to settle or separate.
In many sewage treatment plants, PAC-02 is used in primary treatment, tertiary treatment, DAF systems, phosphorus removal support or emergency clarification when influent quality changes.
PAC-02 can also be used together with PAM flocculant. PAC-02 works as the coagulant, while PAM helps enlarge the formed flocs and improve sedimentation speed.
Key Advantages
30% Al2O3 Content
PAC-02 contains at least 30% Al2O3, providing strong active content for sewage treatment coagulation.
Yellow Powder Grade
PAC-02 is supplied as yellow PAC powder and is widely used for municipal sewage, industrial wastewater and general wastewater treatment.
Low Insoluble Matter
With insoluble matter of no more than 0.1%, PAC-02 provides good dissolution performance and stable dosing operation.
Effective Turbidity Removal
PAC-02 helps reduce turbidity caused by suspended solids, colloids and fine sludge particles in sewage.
Improved Floc Formation
PAC-02 supports the formation of visible and compact flocs, improving sedimentation and clarification performance.
Good Compatibility with PAM
PAC-02 is commonly used before PAM flocculant. This combination helps improve floc size, settling speed and sludge separation.
Wide Sewage Treatment Application
PAC-02 can be used in municipal wastewater, industrial sewage, mixed wastewater, DAF systems, sedimentation tanks and tertiary treatment systems.
Factory Direct Supply
Bluwat supplies PAC-02 directly from factory with stable quality, 25 kg bag packaging and export service.
Technical Specifications
Product Name: PAC-02 PAC Powder 30% Al2O3
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: Sewage Treatment
Other Applications: Municipal Wastewater, Industrial Wastewater, Water Clarification, Chemical Coagulation
Packaging: 25 kg bags
Main Applications
Municipal Sewage Treatment
PAC-02 can be used in sewage treatment plants to improve coagulation, reduce suspended solids and support clearer effluent.
Primary Clarification
PAC-02 helps remove suspended solids and fine particles before biological treatment, reducing the load on downstream units.
Tertiary Treatment
PAC-02 is suitable for tertiary treatment where effluent polishing, turbidity reduction and phosphorus removal support are required.
Industrial Sewage Treatment
When sewage treatment plants receive industrial wastewater, PAC-02 can help improve clarification and reduce colloidal impurities.
DAF Systems
In dissolved air flotation systems, PAC-02 helps destabilize particles and supports better flotation separation when used with suitable flocculant.
Sedimentation Tanks
PAC-02 helps form larger and denser flocs, improving settling performance in sedimentation tanks and clarifiers.
Sludge Separation
PAC-02 can support sludge aggregation and solid liquid separation when used with PAM flocculant in suitable treatment processes.
Mixed Wastewater Treatment
PAC-02 is suitable for wastewater containing domestic sewage and industrial discharge, especially when turbidity and suspended solids fluctuate.
How PAC-02 Works in Sewage Treatment
PAC-02 powder is normally dissolved in clean water before dosing.
After the prepared PAC-02 solution is added into sewage, it disperses quickly under rapid mixing. PAC-02 contacts suspended solids, colloidal particles and fine impurities in the wastewater.
During coagulation, PAC-02 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. If PAM flocculant is added after PAC-02, the flocs can become larger, stronger and faster settling.
Finally, the flocs are separated from water through sedimentation, dissolved air flotation or filtration.
Suggested Dosing Process
A common sewage treatment process using PAC-02 includes the following steps.
First, prepare PAC-02 powder solution with clean water.
Second, dose PAC-02 solution into sewage under rapid mixing.
Third, allow PAC-02 to fully contact suspended solids and colloidal particles.
Fourth, adjust pH if necessary according to jar test results.
Fifth, 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. Sewage quality, turbidity, pH, suspended solids, phosphorus level, organic load and treatment target can all affect the best dosage.
PAC-02 and PAM Combination
PAC-02 and PAM are commonly used together in sewage treatment systems.
PAC-02 works as the coagulant. It destabilizes suspended solids and forms micro flocs.
PAM works as the flocculant. It bridges the micro flocs into larger flocs and improves settling speed.
The recommended dosing order is PAC-02 first and PAM second.
This sequence is widely used in municipal wastewater treatment plants, industrial wastewater treatment systems, DAF units and clarification processes.
PAC-02 Compared with Other PAC Grades
PAC-01 is white powder with Al2O3 content of at least 30% and low insoluble matter. It is commonly used for drinking water treatment 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 widely used for sewage treatment, municipal wastewater and industrial wastewater clarification.
PAC-031 is yellow powder with Al2O3 content of at least 29% and a wider basicity range. It is commonly used for industrial wastewater, high turbidity wastewater and cost effective sewage treatment.
For many sewage treatment plants, PAC-02 provides a good balance between coagulation performance, solubility and operating cost.
Packaging and Storage
Bluwat PAC-02 PAC Powder 30% Al2O3 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 high temperature and incompatible materials.
Use the product promptly after opening.
Proper storage helps maintain powder quality, solubility and coagulation performance.
Why Choose Bluwat PAC-02
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 sewage samples, treatment targets and operating requirements.
Conclusion
PAC-02 PAC Powder 30% Al2O3 is an effective Polyaluminum Chloride coagulant for sewage treatment. It helps improve turbidity removal, suspended solids reduction, floc formation, sedimentation and wastewater clarification.
For municipal sewage treatment plants, industrial sewage systems, DAF units and tertiary treatment processes, PAC-02 provides stable and flexible coagulation performance.
Bluwat supplies PAC-02 yellow PAC powder with factory direct supply, export packaging and technical support for global sewage and wastewater treatment customers.










