PAC 30%

Powder PAC 30% (Poly Aluminium Chloride Powder 30%) is a water treatment chemical that comes in granular form, with colors ranging from light yellow to reddish-brown or white. Its color depends on its origin, the manufacturer, and the requirements of the end-user. In this article, we will explore powder PAC 30% in detail.

Overview of powder PAC 30%

Powder PAC 30% contains 30% aluminum oxide (Al2O3). It is a solid powder in yellow, white, or earth-brown form, completely soluble in water. It can coagulate suspended particles and entirely remove both dissolved and undissolved organic substances, along with heavy metals from water.

On the market, powder PAC 30% is cheaper than PAC 31%. PAC 30% is also known by other names, such as Earth-brown PAC or PAC Qiutao, and is mainly used in industrial wastewater treatment.

Quality specifications of Powder PAC 30%

Applications of powder PAC 30%

As mentioned earlier, powder PAC is primarily used in water treatment, specifically in the following areas:

• Treatment of wastewater from agriculture, aquaculture (shrimp, fish farming), and livestock farming.

• Treatment of stormwater runoff, cooling tower water, and leachate from landfills.

• Industrial wastewater treatment for paper production, coal processing, dyeing, petrochemical refining, brewing, and food processing.

• Drinking water treatment and daily domestic water usage.

Advantages of powder PAC 30%

PAC is produced from the reaction between HCl and aluminum powder, and compared to aluminum sulfate and other inorganic coagulants, PAC has several advantages in water treatment, such as:

• Completely soluble in water: powder PAC dissolves entirely in water, and even at low doses, its coagulation and flocculation performance are excellent.

• Faster coagulation: PAC 30% contains 30% Al2O3, which accelerates the coagulation of suspended particles, resulting in clearer and better-quality water after filtration. Compared to aluminum sulfate, PAC offers 4-5 times higher coagulation efficiency.

• PAC minimally affects the water’s pH level, so you won't need to use lime or alkali to adjust the pH, which helps reduce equipment corrosion.

• PAC does not cause water turbidity even at high doses, and it leaves a lower residual Al3+ concentration compared to aluminum sulfate.

• PAC can remove dissolved and undissolved organic matter and heavy metals more effectively than aluminum sulfate.

• Easy to use without specialized equipment: Simply dissolve powder PAC in water to make a 10-20% solution, then add it to the water that needs to be treated.

• PAC does not produce SO42- in treated wastewater as aluminum sulfate does.

• Reduced sludge volume after treatment.

Comparison of PAC vs. Aluminum Sulfate

Both PAC and aluminum sulfate are widely used water treatment chemicals. Below is a comparison of their characteristics and water treatment efficiency:

Dong A JSC  – A trusted supplier of PAC powder 30%

In Vietnam, after extensive research into PAC production technology, Dong A  Joint Stock Company has successfully produced powder PAC for water treatment. This marks a significant breakthrough in replacing imported PAC from China and India, with better prices and superior quality.

powder PAC 30% is produced from 17% liquid PAC using high-speed centrifugal spray drying technology to ensure the best quality and production efficiency. The resulting powder PAC has a minimum Al2O3 content of 30% and is packaged in 25 kg bags for easy distribution and use.

Currently, Dong A  has registered and obtained NSF ANSI/CAN 60 certification for its powder PAC 30% (under the coagulants and flocculants category of NSF standards). Thus, customers can safely use Dong A  PAC for direct drinking water treatment.