Anionic Polyacrylamide Storage — APAM Flocculant Tank Selection

Storing Anionic Polyacrylamide? Start Here

If you're dealing with anionic polyacrylamide (APAM), you're probably in the water treatment, mineral processing, or sludge dewatering business. This high-molecular-weight flocculant helps in clarifying water, thickening sludge, and more. It's available in dry powder, inverse-emulsion, and beadlet forms, each with its own handling needs. While the polymer itself is non-toxic, keep an eye on the acrylamide monomer content due to its strict regulations. Let's make sure you store it right.

Can you store it in a poly tank?

Yes, you can store APAM in polyethylene tanks. High-density polyethylene (HDPE) or cross-linked polyethylene (XLPE) tanks are standard for all forms of APAM, whether you're dealing with solutions or the neat inverse-emulsion. These materials handle the polymer's mild chemical nature well and are commonly used in industry.

Handling Inverse-Emulsion APAM

When working with inverse-emulsion APAM, be cautious of the mineral-oil carrier. It can affect certain materials like EPDM, which swells when exposed. Use Viton or Buna-N seals instead to avoid issues. This is crucial for maintaining the integrity of your storage and handling systems.

The safety that actually matters

• Monitor acrylamide monomer levels to comply with safety regulations.
• Use appropriate seals to prevent leaks and material degradation.
• Ensure proper dust control when handling dry powder forms.

Common questions

Can APAM be stored outdoors?

Yes, but ensure the tank is UV-stabilized and protected against extreme temperatures.

What is the best way to handle dust from dry APAM?

Use dust collection systems and personal protective equipment to minimize exposure.

Is special equipment needed for mixing APAM solutions?

Yes, a variable-speed mixer is recommended for effective polymer make-down.