Achieving water clarity and purity is a fundamental goal for countless industries and municipalities. The effectiveness of water treatment often depends on the performance of chemical agents, with coagulants playing a pivotal role. Polyaluminum Chloride (PAC) has emerged as a superior coagulant due to its advanced chemical structure and exceptional performance characteristics. As a leading manufacturer and supplier of PAC, understanding its chemical mechanisms allows us to better serve our clients seeking efficient water treatment solutions.

At its core, PAC is a pre-hydrolyzed inorganic polymer that contains a high concentration of positively charged aluminum species. Unlike conventional coagulants such as aluminum sulfate or ferric chloride, PAC's polymeric nature provides a more efficient pathway to contaminant removal. The primary mechanisms by which PAC improves water quality are charge neutralization and sweep flocculation.

Charge Neutralization: Most suspended particles and dissolved organic matter in raw or wastewater carry a negative surface charge. PAC, with its abundant positive charges, effectively neutralizes these charges. This destabilizes the particles, reducing the repulsive forces between them and allowing them to aggregate. This initial step is crucial for effective coagulation, preparing the contaminants for removal.

Sweep Flocculation: As PAC is added to water, it undergoes further hydrolysis to form aluminum hydroxide precipitates. These precipitates are gelatinous and have a large surface area, acting like a physical net. They entrap destabilized particles, colloidal matter, and even dissolved impurities, forming larger, denser flocs. The rapid formation of these substantial flocs is a key advantage of PAC, leading to faster settling rates and improved filtration efficiency. This process is particularly effective in removing turbidity and organic pollutants.

The chemical composition of PAC allows it to function effectively across a wider pH range (typically 5-9) compared to traditional coagulants, often minimizing the need for additional pH adjustment chemicals. This makes it a more adaptable and cost-effective option for various water sources. When you buy Polyaluminum Chloride from our China-based manufacturing facility, you are investing in a product engineered with these superior chemical properties. We offer competitive Polyaluminum Chloride prices and encourage you to request a quote or sample to experience the advanced water clarification capabilities of our PAC.