Selecting the correct type of Polyacrylamide (PAM) flocculant is critical for achieving optimal results in water treatment and various industrial processes. The primary distinction lies in their ionic charge: anionic PAM carries a negative charge, while cationic PAM carries a positive charge. Understanding the nature of the wastewater or slurry you are treating is key to making the right choice.

Anionic Polyacrylamide (APAM) is highly effective in treating neutral to alkaline water that contains positively charged suspended particles. Its applications are widespread, including general anionic polyacrylamide water treatment for industrial wastewater, clarification of drinking water, and as a flocculant in mining operations. APAM is particularly useful when dealing with inorganic suspended solids and can be an excellent choice for applications requiring general water purification.

Cationic Polyacrylamide (CPAM), on the other hand, excels in treating water with high organic content and negatively charged particles. This makes it ideal for municipal sewage treatment and cationic polyacrylamide sludge dewatering. The positive charge of CPAM strongly attracts and binds to negatively charged organic matter and sludge particles, facilitating efficient separation and dewatering processes. Its effectiveness in municipal wastewater treatment is well-established, often providing superior results compared to anionic variants in such conditions.

When choosing the right polyacrylamide, consider these factors:

  • Wastewater Composition: Analyze the charge and type of suspended solids. Negatively charged particles often respond better to cationic PAM, while positively charged particles may be better handled by anionic PAM.
  • pH Level: APAM generally performs well in neutral to alkaline conditions, while CPAM can be effective across a broader pH range, including acidic conditions.
  • Application Goal: For general clarification and dewatering of inorganic sludges, APAM might be suitable. For heavily organic wastewater and efficient sludge dewatering, CPAM is often the preferred choice.
  • Jar Testing: Conducting jar tests with your specific water sample is the most reliable way to determine the optimal PAM type and dosage for your application.

NINGBO INNO PHARMCHEM CO.,LTD offers a comprehensive range of both Anionic and Cationic Polyacrylamide products, backed by expert technical support. Our team can assist you in identifying the most effective PAM solution to meet your specific industrial or water treatment needs, ensuring efficient and cost-effective performance.