The effective application of Polyacrylamide (PAM) as a flocculant in industrial water treatment hinges on precise dosage and proper preparation. Incorrect handling can lead to reduced efficacy, wasted product, and operational inefficiencies. As a leading polyacrylamide manufacturer China and supplier, we are committed to providing practical guidance to ensure our customers achieve the best possible results.

PAM is typically supplied as a white powder or granular solid. Before it can be used in water treatment, it must be dissolved in water to form a homogenous solution. This preparation step is critical, as improper mixing can lead to the formation of lumps or undissolved particles, significantly impairing the PAM's performance.

Key Steps in PAM Preparation and Dosage

Follow these essential steps for optimal PAM preparation and application:

  1. Water Quality for Dissolution: Use clean, preferably neutral water with low hardness. Avoid using heavily saline, acidic, or alkaline water, as these can affect PAM's solubility and performance. Tap water at room temperature is generally suitable.
  2. Dissolution Concentration: PAM solutions are typically prepared at a concentration of 0.1% to 0.5% (w/w). For instance, a 0.1% solution would involve dissolving 1 gram of PAM powder in 1 liter of water. It's advisable to prepare the solution at a slightly higher concentration and then dilute it immediately before use if your mixing tank capacity is limited.
  3. Mixing and Stirring: Add the PAM powder slowly and evenly into the stirred water. Gentle, continuous stirring is crucial to prevent clumping and ensure complete dissolution. High-speed agitation should be avoided, as it can mechanically degrade the long polymer chains, reducing their effectiveness. Specialized mixing equipment designed for polymer preparation is recommended.
  4. Maturation Time: After dissolution, allow the PAM solution to stand for a short period (maturation time) to ensure full hydration and development of its polymeric properties. This typically takes 30-60 minutes.
  5. Determining the Correct Dosage: The optimal dosage of PAM for your specific application (e.g., industrial wastewater treatment, sludge dewatering) must be determined through jar tests. These tests help identify the ideal PAM type, concentration, and dosage that yield the best flocculation, fastest settling, and clearest water with the lowest chemical input. As a guide, polyacrylamide dosage for wastewater can range from 0.2 to 3.0 ppm, but jar tests are essential for precise determination.
  6. Addition Sequence: In many water treatment processes, PAM is used in conjunction with other chemicals like coagulants (e.g., Polyaluminium Chloride - PAC) or pH adjusters. Generally, coagulants are added first to destabilize particles, followed by PAM to bridge and enhance floc formation. Following the correct addition sequence is vital for maximizing floc strength and settling speed.

Why Choose Our Polyacrylamide?

As a leading polyacrylamide supplier, we ensure our products are of the highest quality, easy to prepare, and highly effective. We offer various grades of PAM, including anionic and cationic types, to suit diverse industrial needs. Our commitment extends to providing technical support, helping you optimize your PAM usage and achieve your treatment goals efficiently.

Investing in proper PAM preparation and dosage is key to unlocking its full potential. We encourage you to leverage our expertise when you decide to buy polyacrylamide. Understanding the correct handling and application will lead to better water quality, reduced costs, and improved process performance.

For further assistance or to discuss your specific requirements, please contact us today. We are here to help you select the right Polyacrylamide product and provide the guidance needed for its successful application.