How to Prepare and Use PAM (Polyacrylamide) for Water and Sludge Treatment

 Polyacrylamide (PAM) is a highly effective chemical used in water treatment and sludge dewatering. Proper preparation and dosage are critical to achieving optimal performance. Below is a comprehensive guide on how to prepare PAM solutions and determine the correct dosage for various applications.

Preparation of PAM Solution

Materials Needed:

  • Polyacrylamide dry powder (PAM)
  • Tap water or deionized water (depending on water quality requirements)
  • Mixing equipment (e.g., mixer or mixing tank)

Steps for Preparation:

  1. Calculate the Required Amount of PAM:
    • Determine the weight of PAM dry powder based on the desired solution concentration (typically 0.1%–0.2%) and the total volume of water.
    • Example: To prepare 100 liters of a 0.1% PAM solution, you will need 100 grams of PAM dry powder.
  2. Add Water to Mixing Equipment:
    • Fill the mixing tank with the required amount of water and start stirring.
  3. Slowly Add PAM Dry Powder:
    • Sprinkle the PAM powder slowly and evenly into the water while stirring. This ensures the powder disperses as individual particles and avoids clumping.
  4. Continue Stirring:
    • Stir the mixture until the PAM is completely dissolved, forming a uniform solution. This typically takes 30–60 minutes, depending on the equipment and solution volume.
  5. Use the Solution Promptly:
    • PAM solutions are prone to hydrolysis, so they should be used as soon as possible after preparation. Avoid long-term storage to maintain effectiveness.
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