Achieving the most effective results from Polyaluminium Chloride (PAC) in water treatment hinges on precise dosage and application techniques. While PAC is inherently efficient, understanding how to optimize its use can unlock significant improvements in water quality and operational cost-effectiveness. NINGBO INNO PHARMCHEM CO.,LTD. provides key insights for maximizing PAC efficiency.

The first step towards maximizing PAC efficiency is conducting a jar test. This laboratory procedure involves adding varying dosages of PAC to samples of the water to be treated. By observing the formation of flocs, sedimentation rates, and the clarity of the supernatant water, one can determine the optimal PAC dosage that yields the best treatment outcome with the least amount of chemical. Factors such as the water's turbidity, pH, temperature, and the presence of dissolved organic matter all influence the ideal dosage. A dosage that is too low may result in incomplete removal of impurities, while a dosage that is too high can be wasteful and may even negatively impact water quality, such as causing overdosing of aluminum, requiring more complex pH adjustments.

Proper application of PAC is also critical. For solid PAC, it is often recommended to dilute it into a solution before dosing. The concentration of this solution can vary, typically between 2% and 20%. While direct addition of solid PAC is sometimes possible, preparing a solution generally ensures more uniform dispersion into the water stream, leading to more consistent flocculation. The point of application is also important; PAC should ideally be introduced into a point of high turbulence to ensure thorough mixing with the water. This initial rapid mixing is crucial for effective coagulation.

Following the rapid mix for coagulation, a slower mixing phase, known as flocculation, allows the small coagulated particles to aggregate into larger, settleable flocs. Ensuring adequate contact time and gentle agitation during this phase is important for forming robust flocs. The PAC solution should be dosed either before or after the initial rapid mix, depending on the specific system design and water characteristics, but always after the sampling point for chemical controllers to ensure accurate readings and control.

For businesses looking to buy PAC, consulting with experienced suppliers like NINGBO INNO PHARMCHEM CO.,LTD. can provide tailored advice on dosage and application strategies specific to their water treatment challenges. By meticulously managing the dosage and application of Polyaluminium Chloride, users can significantly enhance their water purification processes, achieve superior water quality, and realize greater cost efficiencies in their operations.