Cationic Polymer Flocculant Storage — Acrylamide Polyelectrolyte Tank Selection

Storing Polymer Flocculant? Start Here

Polymer flocculants, especially cationic ones based on polyacrylamide, play a crucial role in wastewater treatment. They're used to help separate solids from liquids in processes like sludge thickening and dewatering. These polymers come in different forms: emulsions, dispersions, or dry powders. If you're handling these materials, it's important to know how to store them safely and effectively.

Can you store it in a poly tank?

Yes, you can store cationic polymer flocculants in polyethylene tanks. Both HDPE and XLPE tanks are suitable for storing the emulsion or dispersion forms of these polymers. Just ensure that the tanks are properly connected to a make-down system that dilutes the polymer for use.

Key Issue: Carrier Oil Compatibility

The main concern when storing cationic polymer emulsions is the compatibility with the carrier oil, which is often petroleum-derived. This oil can affect certain materials, so it's crucial to use the right gaskets and fittings. For example, Viton seals are recommended over EPDM due to better compatibility with the carrier oil.

The safety that actually matters

• Ensure tanks are compatible with the carrier oil in the polymer.
• Use the correct gaskets and seals, like Viton, for emulsion service.
• Follow proper dilution procedures using a make-down system.

Common questions

What type of tank is best for storing polymer flocculants?

HDPE or XLPE tanks are recommended for storing emulsions or dispersions.

What should I use for seals and gaskets?

Viton seals are ideal for emulsion service due to their compatibility with the carrier oil.

How should I dilute the polymer for use?

Use a make-down system to dilute the polymer to the appropriate concentration before dosing.