Polyaluminium Chloride (PAC) is a cornerstone of modern water treatment, prized for its efficiency and versatility. However, to unlock its full potential and ensure safety, understanding the correct usage and storage methods is crucial. NINGBO INNO PHARMCHEM CO.,LTD., a leading chemical supplier, provides essential guidance for optimal PAC application and longevity.

Optimal Usage of Polyaluminium Chloride (PAC)

The effectiveness of PAC is highly dependent on proper application techniques. Here are key considerations for its use:

  • Dosage Determination: The ideal dosage of PAC varies based on the raw water quality, including turbidity, pH, temperature, and the presence of specific contaminants. It is highly recommended to conduct jar tests. These laboratory simulations help determine the optimal PAC dosage and type for your specific water source, ensuring efficient flocculation without over-application.
  • Preparation of Solutions: If using powdered PAC, it must be dissolved in water to form a solution before application. Typically, a concentration of 2-20% is recommended. Use clean water and stir continuously until fully dissolved. It is best to use the prepared solution within 24 hours to maintain its efficacy.
  • pH Control: PAC is most effective within a specific pH range, typically between 5.0 and 9.0. For waters outside this range, pre-treatment to adjust the pH may be necessary. Ensure your water's pH is optimized before or during PAC application to maximize coagulation performance.
  • Mixing and Reaction Time: Proper mixing is essential for PAC to disperse evenly and react with impurities. Rapid mixing for the initial few minutes helps in achieving good dispersion, followed by slow mixing to promote floc formation. The duration and intensity of mixing should be optimized based on jar test results.
  • Addition Sequence: When used with other treatment chemicals, such as polymers or disinfectants, the sequence of addition can be critical. Generally, PAC is added early in the treatment process to initiate coagulation. Always consult product datasheets or technical experts for recommended sequencing.

Proper Storage of Polyaluminium Chloride

Correct storage practices are vital for maintaining the quality and efficacy of PAC:

  • Sealed Containers: Keep PAC containers tightly sealed when not in use. This prevents moisture absorption, which can lead to caking and reduced performance.
  • Dry and Ventilated Environment: Store PAC in a cool, dry, and well-ventilated area, away from direct sunlight and extreme temperatures. High temperatures can degrade the product, while extreme cold can cause physical changes.
  • Avoid Contamination: Store PAC separately from incompatible chemicals, particularly strong bases or oxidizing agents, to prevent hazardous reactions.
  • Ground Protection: If storing powdered PAC, avoid direct contact with the ground to prevent moisture ingress. Use pallets or other protective measures.
  • Shelf Life: Be mindful of the product's shelf life. While PAC has a reasonable shelf life when stored correctly, its performance may gradually decline over extended periods. Regularly check product appearance for signs of degradation like severe caking or discoloration.

Reliable PAC Supply from NINGBO INNO PHARMCHEM CO.,LTD.

NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing high-quality Polyaluminium Chloride backed by excellent technical support. We understand the importance of proper handling and storage for optimal results. If you need to buy PAC or require further information on its application and storage, please contact our expert team. We are here to ensure your water treatment processes are efficient and successful.