Effective water treatment hinges on the precise application of advanced chemical agents. Anionic Polyacrylamide (APAM), a key flocculant, requires careful handling and application to achieve optimal results. NINGBO INNO PHARMCHEM CO.,LTD., as a seasoned manufacturer and supplier, shares expert insights on the proper use of APAM in water treatment to ensure maximum efficiency and cost-effectiveness.

Preparation of APAM Solutions:
The first step in utilizing APAM effectively is correct solution preparation. Typically, APAM is supplied as a powder. It is crucial to dissolve the powder in clean water at room temperature. Gentle stirring is recommended to prevent mechanical degradation of the polymer chains, which can significantly reduce its efficacy. The recommended concentration for preparing the solution is usually between 0.1% and 0.5%. Overly high concentrations can lead to poor mixing and undesirable clumping, while too low a concentration may not provide sufficient flocculation. Always follow the specific product guidelines provided by the manufacturer.

Dosing and Application Sequence:
The correct dosage and application sequence are critical for successful flocculation. Jar tests are the best method to determine the optimal dosage of APAM for specific water conditions, considering factors like pH, turbidity, and contaminant type. Generally, APAM is added after inorganic coagulants (like PAC or ferric chloride) have been introduced and allowed to perform their initial destabilization of particles. APAM then acts as a bridging agent, pulling these destabilized particles together to form larger, settleable flocs. Adding APAM in stages, with adequate mixing after each addition, can further enhance floc formation. It's important to note that excessive APAM can lead to overdosing, which can cause the flocs to become unstable or even re-disperse, hindering the treatment process.

Key Considerations for Maximizing Performance:

  • pH Adjustment: Ensure the pH of the water is within the optimal range for APAM's performance, which is typically neutral to alkaline conditions for anionic types.
  • Mixing Intensity: Use moderate stirring speeds during solution preparation and controlled mixing in the treatment tank. Vigorous agitation can break down the polymer chains.
  • Water Quality: Always consider the specific water matrix. Other ions or organic matter can influence the effectiveness of APAM.

As a leading supplier in China, NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to helping our clients succeed. We offer high-quality APAM and provide technical support to ensure proper application. If you are looking to buy anionic polyacrylamide or need advice on optimal dosing, contact us for expert guidance and competitive pricing.