The selection of the right coagulant is fundamental to the success of any water or wastewater treatment operation. For decades, aluminum sulfate has been a workhorse in the industry. However, with advancements in chemical technology, Poly Aluminium Chloride (PAC) has emerged as a highly competitive and often superior alternative. NINGBO INNO PHARMCHEM CO.,LTD. provides an in-depth look at the comparative advantages of PAC over aluminum sulfate, explaining why many facilities are transitioning to this advanced coagulant.

Both Poly Aluminium Chloride and aluminum sulfate function as coagulants, working to destabilize and aggregate suspended particles in water. They achieve this by neutralizing the negative charges that keep these particles dispersed. However, the mechanisms and outcomes differ significantly. Aluminum sulfate, while effective, often leaves behind substantial residual aluminum in the treated water. This necessitates additional purification steps and generates a larger volume of sludge, which is costly to manage and dispose of. The environmental implications of increased aluminum residuals in water bodies are also a growing concern.

Poly Aluminium Chloride, on the other hand, is engineered to overcome these limitations. Its chemical structure allows for more efficient charge neutralization, leading to faster floc formation and improved settling rates. Crucially, PAC applications result in significantly lower residual aluminum levels in the treated water. This means less secondary treatment is required, and the volume of sludge produced is considerably reduced. These factors contribute to lower operating costs and a more environmentally sound treatment process. The efficiency of PAC in removing various contaminants, including turbidity, color, and heavy metals, is also generally higher than that of aluminum sulfate.

Furthermore, PAC often demonstrates a wider effective pH range compared to aluminum sulfate. This broader applicability means it can perform optimally under a greater variety of water conditions, reducing the reliance on costly pH adjustment chemicals. For industries seeking to optimize their water treatment operations, improve efficiency, and minimize their environmental footprint, the advantages of Poly Aluminium Chloride are clear. NINGBO INNO PHARMCHEM CO.,LTD. offers high-quality PAC products designed to deliver these benefits, supporting industries in their commitment to cleaner water and sustainable practices.