NINGBO INNO PHARMCHEM CO.,LTD. explores the significant advantages gained by employing a synergistic approach to water and wastewater treatment: the combination of Polyacrylamide (PAM) with inorganic coagulants, such as Polyaluminum Chloride (PAC).

While PAM is a powerful flocculant in its own right, its effectiveness can often be amplified when used in conjunction with inorganic coagulants. Inorganic coagulants, like PAC, work by neutralizing the surface charges of suspended particles, causing them to destabilize and form small micro-flocs. This initial destabilization is a crucial precursor for the subsequent action of PAM.

When PAM is added after the inorganic coagulant, its long polymer chains can effectively bridge these micro-flocs. This bridging mechanism creates larger, denser, and more stable flocs that settle more rapidly and are more easily captured by filtration or flotation systems. This combined approach can lead to several key benefits:

  1. Improved Flocculation Efficiency: The synergy between coagulants and flocculants results in larger and more robust flocs, leading to higher removal rates of suspended solids, turbidity, and color.
  2. Reduced Dosage Requirements: By working together, PAM and inorganic coagulants can often achieve the desired treatment results with lower overall chemical dosages compared to using either substance alone.
  3. Enhanced Sludge Dewatering: The denser, more compact flocs formed by this combined treatment typically yield sludge with a lower moisture content, improving dewatering performance and reducing disposal costs.
  4. Wider Treatment Window: The combination can be more tolerant of variations in raw water quality, such as fluctuating pH or high organic loads, making the treatment process more stable and reliable.
  5. Cost-Effectiveness: Optimized dosages and improved treatment outcomes contribute to overall cost savings in industrial water and wastewater management.

The optimal combination and dosage of PAM and inorganic coagulants will vary depending on the specific characteristics of the water source and the treatment objectives. NINGBO INNO PHARMCHEM CO.,LTD. recommends conducting treatability studies, such as jar tests, to determine the most effective ratio and application sequence for your particular needs. For example, in treating highly organic wastewater, an initial dose of PAC followed by a carefully selected PAM can effectively remove both inorganic and organic impurities.

By strategically combining the strengths of polyacrylamide and inorganic coagulants, industries can achieve superior water quality, optimize operational efficiency, and manage wastewater more sustainably. NINGBO INNO PHARMCHEM CO.,LTD. is your trusted partner in providing high-performance chemicals and expert guidance for advanced water treatment solutions.