PAC Water Treatment Chemical for Coagulation Treatment
Product Overview
PAC Water Treatment Chemical, also known as Polyaluminum Chloride Powder or Poly Aluminium Chloride Powder, is an inorganic polymer coagulant widely used in coagulation treatment.
In water and wastewater treatment, many impurities are present as fine suspended particles, colloids or tiny organic particles. These particles are often stable in water and difficult to remove by natural settling. PAC helps break this stability through chemical coagulation.
After PAC is dosed into water, it neutralizes the charge of suspended solids and colloidal particles. These fine particles then begin to form micro flocs. With proper mixing and optional PAM flocculant addition, the flocs become larger and easier to remove by sedimentation, dissolved air flotation or filtration.
Bluwat supplies spray dried PAC powder in different grades for drinking water treatment, sewage treatment, industrial wastewater treatment and general water clarification applications.
What Is Coagulation Treatment
Coagulation treatment is an important process in water treatment. It is used to destabilize fine particles and colloids so they can be removed more easily from water.
Without coagulation, many fine particles remain suspended and make the water cloudy. These particles may pass through sedimentation systems or increase the load on filtration units.
PAC works as a chemical coagulant in this process. It helps small particles combine into larger flocs, making the following clarification step more effective.
Coagulation treatment is widely used in drinking water plants, wastewater treatment plants, industrial water treatment systems, DAF units, clarifiers and filtration pretreatment processes.
Why PAC Is Used for Coagulation Treatment
PAC is widely used because it provides fast reaction, strong floc formation and good adaptability to different water qualities.
Compared with some traditional inorganic coagulants, PAC can often work effectively at lower dosage levels and across a wider pH range. It can also help form compact flocs with good settling performance.
In drinking water treatment, PAC helps remove turbidity and fine impurities before filtration and disinfection.
In wastewater treatment, PAC helps reduce suspended solids, colloids, turbidity and some organic impurities before sedimentation, flotation or further treatment.
In industrial water treatment, PAC helps improve water clarification and supports stable operation of downstream equipment.
Key Advantages
PAC water treatment chemical provides strong charge neutralization and helps destabilize suspended solids and colloidal particles.
After dosing and mixing, PAC supports quick micro floc formation and prepares the water for better flocculation and clarification.
The flocs formed after PAC dosing can settle more easily, helping improve clarifier and sedimentation tank performance.
PAC helps reduce water turbidity by gathering fine particles into larger removable flocs.
PAC can be used in drinking water treatment, municipal wastewater treatment, industrial wastewater treatment, paper mill wastewater, textile wastewater, mining wastewater, coal washing wastewater and food processing wastewater.
PAC is commonly used before PAM flocculant. PAC starts the coagulation process, while PAM strengthens floc size and improves settling speed.
Spray dried PAC powder is easy to store, transport and prepare as a dosing solution.
Bluwat supplies PAC powder directly from factory with stable quality, 25 kg bag packaging, export service and technical support.
Product Grades and Specifications
Different PAC grades can be selected according to water quality, treatment target, purity requirement and operating cost.
Typical Applications
PAC-01 white powder can be used for raw water coagulation in drinking water treatment plants. It helps remove turbidity, suspended solids, clay particles and colloids before filtration.
PAC powder can support sewage treatment plants by improving suspended solids removal, turbidity reduction, phosphorus removal support and final effluent clarity.
PAC-02 and PAC-031 are widely used for industrial wastewater coagulation. They help remove fine particles, colloids, suspended solids and organic impurities.
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 improves solid liquid separation in mining wastewater and coal washing wastewater by aggregating fine mineral particles and suspended solids.
PAC can be used in food processing wastewater pretreatment to reduce suspended solids and improve clarification performance.
For chemical wastewater with unstable colloids and mixed impurities, PAC can improve coagulation before further treatment steps.
How PAC Works in the Treatment Process
PAC powder is normally dissolved in clean water before dosing.
After PAC solution is added into raw water or wastewater, it disperses quickly under rapid mixing. PAC contacts suspended solids and colloidal particles and neutralizes their surface charge.
Once the particles lose stability, they begin to combine into micro flocs. During slow mixing, these micro flocs grow into larger flocs.
If PAM flocculant is added after PAC, the flocs can become larger and stronger, improving settling or flotation performance.
Finally, the flocs are removed by sedimentation, dissolved air flotation or filtration. This process helps produce clearer treated water and supports stable plant operation.
Suggested Dosing Process
A common coagulation treatment process using PAC includes the following steps.
First, prepare PAC powder solution with clean water.
Second, dose PAC solution into water or wastewater under rapid mixing.
Third, allow PAC to fully contact suspended solids and colloids.
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, flotation or filtration.
The actual dosage should be confirmed by jar testing. Water quality, turbidity, pH, alkalinity, temperature, suspended solids and treatment target can all affect the best dosage.
PAC and PAM in Coagulation Treatment
PAC and PAM are often used together, 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 speed.
The recommended dosing sequence is PAC first and PAM second.
This sequence is widely used in wastewater treatment plants, industrial water treatment systems, DAF processes and sedimentation tanks.
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 PAC Water Treatment Chemical 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
PAC Water Treatment Chemical is an effective coagulant for coagulation treatment. It helps remove turbidity, suspended solids, colloids and fine particles by improving floc formation and solid liquid separation.
For drinking water treatment plants, sewage treatment plants and industrial wastewater treatment systems, PAC powder provides stable and flexible treatment 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.