Polyaluminum Chloride PAC Powder Basicity 50–90% for Sewage Treatment
Product Overview
PAC Powder Basicity 50–90% is a yellow Polyaluminum Chloride powder designed for sewage treatment and wastewater coagulation.
Sewage treatment plants often receive wastewater containing suspended solids, sludge particles, colloids, organic matter, phosphorus, industrial discharge and other fine impurities. These particles may remain stable in water and cannot be removed efficiently by natural settling alone.
PAC powder works as an inorganic polymer coagulant. After dosing and mixing, it helps destabilize fine particles and colloids. These impurities then gather into larger flocs, which can be separated from water by sedimentation, dissolved air flotation or filtration.
Bluwat PAC-031 is a yellow spray dried PAC powder with basicity of 50–90%, Al2O3 content of at least 29% and insoluble matter of no more than 1.5%. It is commonly used for sewage treatment, municipal wastewater, industrial wastewater and high turbidity wastewater clarification.
What Basicity 50–90% Means
Basicity is an important technical parameter of Polyaluminum Chloride. It reflects the alkalinity and polymerization characteristics of PAC powder.
For sewage treatment, wastewater quality may change frequently. Influent turbidity, suspended solids, pH, organic load and industrial discharge can all fluctuate. PAC powder with a wider basicity range can provide flexible coagulation performance under different wastewater conditions.
PAC Powder Basicity 50–90% is suitable for many sewage and industrial wastewater treatment systems where stable floc formation, turbidity removal and cost control are important.
Why PAC Powder Basicity 50–90% Is Used for Sewage Treatment
Sewage treatment requires stable solid liquid separation. If fine particles, sludge particles and colloids are not coagulated properly, the clarifier or DAF system may not perform well.
PAC powder helps neutralize 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 and become easier to remove.
For sewage treatment plants, PAC Powder Basicity 50–90% can be used to improve suspended solids removal, reduce turbidity, support floc formation and improve clarification performance.
It can be used alone as a coagulant or together with PAM flocculant for better settling speed and sludge separation.
Key Advantages
PAC powder with 50–90% basicity offers flexible coagulation performance for different sewage and wastewater conditions.
This yellow PAC powder is suitable for municipal sewage, industrial sewage, mixed wastewater and high turbidity wastewater treatment.
PAC helps reduce turbidity caused by suspended solids, sludge particles, colloids and fine impurities.
After proper dosing and mixing, PAC helps fine particles form larger flocs for easier sedimentation or flotation.
PAC-031 is commonly selected for large volume sewage treatment and industrial wastewater projects where treatment cost is important.
PAC can be used before PAM flocculant to improve floc size, settling speed and sludge separation.
PAC Powder Basicity 50–90% can be used in sedimentation tanks, DAF systems, clarifiers and filtration pretreatment processes.
Bluwat supplies PAC powder directly from factory with stable quality, 25 kg bag packaging and export service.
Technical Specifications
| Product Name | PAC Powder Basicity 50–90% |
|---|---|
| Chemical Name | Polyaluminum Chloride |
| Common Name | PAC Powder |
| Recommended Grade | PAC-031 |
| Appearance | Yellow Powder |
| Al2O3 Content | ≥29% |
| Basicity | 50–90% |
| Insoluble Matter | ≤1.5% |
| Type | Spray Dried |
| Main Application | Sewage Treatment |
| Other Applications | Municipal Wastewater, Industrial Wastewater, High Turbidity Wastewater, Water Clarification |
| Packaging | 25 kg bags |
Main Applications
PAC powder basicity 50–90% can be used in municipal sewage treatment plants to improve coagulation, floc formation and effluent clarification.
When sewage contains industrial discharge, PAC powder helps remove suspended solids, colloids and fine impurities.
For wastewater with high turbidity and heavy suspended solids, PAC helps improve particle aggregation and solid liquid separation.
PAC powder can be used in primary treatment to reduce suspended solids before biological treatment, helping lower the load on downstream units.
PAC can support tertiary treatment where turbidity reduction, effluent polishing and phosphorus removal support are required.
In dissolved air flotation systems, PAC helps destabilize particles before flotation separation. It is often used together with PAM flocculant.
PAC helps form heavier flocs, improving settling performance in clarifiers and sedimentation tanks.
Textile wastewater may contain color, suspended solids and organic matter. PAC powder can be used with water decoloring agent and PAM to improve clarification.
PAC helps remove fibers, fillers and fine suspended solids from paper mill wastewater.
PAC powder supports the settling of fine mineral particles and coal particles in mining and coal washing wastewater treatment.
How PAC Powder Basicity 50–90% Works
PAC powder is normally dissolved in clean water before dosing.
After the prepared PAC solution is added into sewage or wastewater, it disperses quickly under rapid mixing. PAC contacts suspended solids, colloidal particles and fine impurities.
During chemical coagulation, PAC 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 and stronger flocs. These flocs can then be removed by sedimentation, dissolved air flotation or filtration.
If PAM flocculant is added after PAC, the flocs can become larger, stronger and faster settling.
Suggested Dosing Process
First, test sewage quality, including pH, turbidity, suspended solids and treatment target.
Second, prepare PAC powder solution with clean water.
Third, dose PAC solution into sewage under rapid mixing.
Fourth, allow PAC 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. Sewage quality, pH, turbidity, suspended solids, organic load, phosphorus level and treatment target can all affect the best dosage.
PAC and PAM Combination
PAC powder and PAM flocculant are commonly used together in sewage treatment.
PAC works as the coagulant. It destabilizes suspended solids and colloids 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 first and PAM second.
This combination is widely used in municipal wastewater treatment plants, industrial wastewater treatment systems, DAF units and sludge separation processes.
PAC-031 Compared with Other PAC Grades
PAC-01 is white powder with basicity of 45–55%, Al2O3 content of at least 30% and insoluble matter of no more than 0.1%. It is commonly used for drinking water treatment and high purity water clarification.
PAC-02 is yellow powder with basicity of 45–85%, Al2O3 content of at least 30% and insoluble matter of no more than 0.1%. It is suitable for industrial wastewater, municipal wastewater and sewage treatment.
PAC-031 is yellow powder with basicity of 50–90%, Al2O3 content of at least 29% and insoluble matter of no more than 1.5%. It is commonly used for sewage treatment, industrial wastewater, high turbidity wastewater and cost effective coagulation.
For sewage treatment projects where operating cost and stable clarification performance are both important, PAC-031 is a practical choice.
Packaging and Storage
Bluwat PAC Powder Basicity 50–90% 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 PAC 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-031 is produced under stable quality control to support reliable coagulation performance and consistent supply.
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 cost requirements.
Conclusion
PAC Powder Basicity 50–90% is a cost effective yellow Polyaluminum Chloride coagulant for sewage treatment and wastewater clarification. It helps improve turbidity removal, suspended solids reduction, floc formation, sedimentation and solid liquid separation.
With wide basicity range, yellow powder appearance and practical coagulation performance, PAC-031 is suitable for municipal sewage, industrial sewage, high turbidity wastewater and general wastewater treatment systems.
Bluwat supplies PAC powder basicity 50–90% with factory direct supply, export packaging and technical support for global sewage and wastewater treatment customers.