Polyaluminum Chloride Powder for Chemical Coagulation of Water
Product Overview
Polyaluminum Chloride Powder, also known as PAC powder or Poly Aluminium Chloride Powder, is an inorganic polymer coagulant widely used for the chemical coagulation of water.
In many water treatment systems, impurities such as suspended solids, clay particles, colloids, organic matter and fine particles remain stable in water. These particles are often too small to settle naturally and can cause turbidity, poor water clarity and higher filtration load.
PAC powder helps solve this problem through chemical coagulation. After dosing into water, PAC neutralizes the electrical charge of suspended particles and colloids. Once these particles lose stability, they begin to combine and form larger flocs. These flocs can then be removed by sedimentation, dissolved air flotation or filtration.
Bluwat supplies spray dried Polyaluminum Chloride Powder in different grades for drinking water treatment, municipal wastewater treatment and industrial wastewater treatment.
What Is Chemical Coagulation of Water
Chemical coagulation of water is a treatment process used to remove fine particles and colloidal impurities from water.
Many suspended particles in water have surface charges that keep them separated and stable. Because of this, they do not easily settle by gravity. A coagulant such as Polyaluminum Chloride is added to neutralize these charges.
After coagulation, small particles begin to gather into micro flocs. During the flocculation stage, these micro flocs grow into larger flocs. The larger flocs can then be separated from water, resulting in clearer treated water.
This process is widely used in drinking water plants, sewage treatment plants, industrial wastewater systems, DAF units, clarifiers and filtration pretreatment systems.
Why Use Polyaluminum Chloride for Chemical Coagulation
Polyaluminum Chloride is widely used because it provides strong coagulation performance, fast floc formation and good adaptability to different water qualities.
Compared with some traditional coagulants such as aluminum sulfate, PAC can often work effectively at lower dosage levels and across a wider pH range. It can help form compact flocs with good settling performance.
For water treatment plants, this means better turbidity removal, improved sedimentation and more stable clarification.
For wastewater treatment plants, PAC can support suspended solids removal, phosphorus removal support, color reduction support and improved solid liquid separation.
Key Advantages
PAC powder helps neutralize the charge of suspended solids and colloidal particles, making them easier to remove from water.
After proper dosing and mixing, PAC supports the formation of visible and compact flocs.
The flocs formed after PAC treatment can settle faster under suitable treatment conditions, improving clarification efficiency.
PAC powder can be used in drinking water, municipal wastewater, industrial wastewater, textile wastewater, paper mill wastewater, mining wastewater and food processing wastewater.
Spray dried PAC powder dissolves well in water and can be prepared as a dosing solution for continuous operation.
PAC is commonly used before PAM flocculant. PAC starts chemical coagulation, while PAM enlarges flocs and improves sedimentation speed.
Bluwat supplies PAC-01, PAC-02 and PAC-031 to meet different water treatment needs.
Bluwat provides stable PAC powder quality, 25 kg bag packaging, export service and technical support.
Product Grades and Specifications
The suitable PAC grade should be selected according to water source, turbidity level, pH, treatment target, purity requirement and operating cost.
Main Applications
PAC-01 white powder can be used for chemical coagulation of raw water in drinking water treatment plants. It helps remove turbidity, suspended solids and colloidal impurities before filtration and disinfection.
PAC powder can support municipal wastewater treatment by improving coagulation, suspended solids removal, phosphorus removal support and effluent clarity.
PAC-02 and PAC-031 are widely used in industrial wastewater treatment for turbidity removal, colloid destabilization, floc formation and solid liquid separation.
In textile and dyeing wastewater treatment, PAC can support coagulation and floc formation. It is often used together with water decoloring agent and PAM flocculant.
PAC helps remove fibers, fillers and suspended solids from paper mill wastewater, improving clarification and sludge separation.
PAC powder improves solid liquid separation by helping fine mineral particles and suspended solids form larger flocs.
PAC can be used in food processing wastewater pretreatment to reduce suspended solids and improve clarification before further treatment.
For chemical wastewater with unstable colloids and mixed impurities, PAC can improve coagulation performance before sedimentation, DAF or filtration.
How PAC Works in Chemical Coagulation
Suggested Dosing Process
A common chemical coagulation process using PAC powder includes the following steps.
The actual dosage should be confirmed by jar testing. Water quality, pH, turbidity, alkalinity, temperature, suspended solids and treatment target can all affect the best dosage.
PAC and PAM in Water Coagulation
PAC and PAM are often used together in water treatment, but their functions are different.
PAC is the coagulant. It neutralizes particle charge and starts micro floc formation.
PAM is the flocculant. It bridges micro flocs into larger flocs and improves settling or flotation performance.
The recommended dosing sequence is PAC first and PAM second. This sequence is commonly used in drinking water clarification, municipal wastewater treatment, industrial wastewater treatment and DAF systems.
For wastewater with high color or stable dissolved pollutants, a water decoloring agent may be used before PAC depending on the water condition.
Packaging and Storage
Bluwat Polyaluminum Chloride 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 solubility, active content and coagulation performance.
Why Choose Bluwat Chemicals
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 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.
With factory direct supply, 25 kg bag packaging, export experience and technical support, Bluwat can help customers choose suitable PAC grades according to actual water samples and treatment requirements.
Conclusion
Polyaluminum Chloride Powder is an effective chemical for chemical coagulation of water. It helps remove turbidity, suspended solids, colloids and fine particles by improving floc formation and solid liquid separation.
For drinking water plants, sewage treatment plants, industrial wastewater facilities, DAF units and filtration pretreatment systems, PAC powder provides stable and flexible performance.
Bluwat supplies PAC-01, PAC-02 and PAC-031 spray dried PAC powder grades with reliable quality, factory direct supply and technical support for global water treatment customers.