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Unveiling the Power of Polyaluminum Chloride: A Water Treatment Wonder



In the quest for clean and safe drinking water, water treatment technologies have come a long way. Among the various water purification chemicals and methods, Polyaluminum Chloride (PAC) stands out as a powerhouse for treating water and wastewater. This versatile coagulant has revolutionized the field of water treatment, offering a cost-effective, efficient, and environmentally friendly solution. In this blog, we will delve into the world of Polyaluminum Chloride, exploring its properties, applications, and the pivotal role it plays in ensuring the availability of high-quality drinking water.

What is Polyaluminum Chloride (PAC)?

Polyaluminum Chloride, often abbreviated as PAC, is a chemical coagulant that is used in the purification of water and wastewater. It is a versatile compound derived from aluminum and chlorine and comes in various forms, including liquid and solid. PAC is widely recognized for its exceptional coagulation and flocculation properties, which are crucial for removing impurities and contaminants from water.

Key Benefits of Polyaluminum Chloride (PAC)

1. Efficient Coagulation: PAC has a high coagulation efficiency, meaning it can effectively destabilize and aggregate suspended particles and impurities in water. This makes it a valuable tool in the treatment of both raw water sources and industrial wastewater.

2. Wide pH Range: Unlike some other coagulants, PAC is effective over a wide pH range, making it adaptable to various water sources with different acidity levels. This versatility ensures consistent performance in diverse applications.

3. Reduced Sludge Production: PAC generates less sludge compared to traditional coagulants like alum and ferric chloride. Less sludge means lower disposal costs and reduced environmental impact.

4. Cost-Effective: PAC is known for its cost-effectiveness. Its efficient dosage and reduced sludge production translate into lower operational and disposal costs for water treatment facilities.

Applications of Polyaluminum Chloride (PAC)

1. Drinking Water Treatment: One of the primary applications of PAC is in the treatment of drinking water. It helps remove turbidity, suspended solids, and organic matter, ensuring that the water is safe for consumption.

2. Industrial Wastewater Treatment: PAC plays a vital role in treating industrial wastewater from various sectors, including pulp and paper, textiles, food processing, and petrochemicals. It helps remove contaminants and pollutants before the wastewater is discharged.

3. Municipal Wastewater Treatment: PAC is used in municipal wastewater treatment plants to enhance the removal of solids and phosphorus. It improves the overall efficiency of the treatment process.

4. Swimming Pool Water Treatment: PAC is also employed in swimming pool water treatment to maintain water clarity and prevent the formation of harmful microorganisms.

Environmental Considerations

Polyaluminum Chloride is considered environmentally friendly due to its reduced sludge production and lower aluminum content compared to traditional coagulants like alum. Its lower aluminum content helps mitigate the potential environmental impact associated with elevated aluminum concentrations in treated water.


Polyaluminum Chloride (PAC) has earned its place as a water treatment wonder, delivering efficiency, versatility, and cost-effectiveness to a wide range of applications. Whether it's ensuring clean and safe drinking water, treating industrial wastewater, or maintaining crystal-clear swimming pools, PAC plays a pivotal role in safeguarding public health and protecting the environment. As the demand for clean water continues to rise, PAC remains a trusted ally in the quest for water purity and sustainability.

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