Polyaspartic Acid Storage — PASP Biodegradable Scale Inhibitor Tank Selection

Storing Polyaspartic Acid? Start Here

Polyaspartic acid (PASP) is a biodegradable polymer used mainly as a scale and corrosion inhibitor in cooling towers, oilfields, and agriculture. It's favored for its eco-friendly profile, breaking down much more readily than traditional polyacrylates. Typically, PASP is supplied as a 40% aqueous solution with a slightly alkaline pH. If you're working in water treatment or agriculture, PASP might be a key part of your green-chemistry toolkit.

Can you store it in a poly tank?

Yes, poly tanks are suitable for storing polyaspartic acid. High-density polyethylene (HDPE) tanks are commonly used and work well at all concentrations. If you're using it in cooling towers, oilfields, or agriculture, a poly tank is a reliable choice.

Key Issue: Alkaline Nature

While PASP is generally non-corrosive, its slightly alkaline nature means it can slowly corrode certain metals. Avoid using galvanized or aluminum tanks for concentrated storage. HDPE or coated carbon steel tanks are better options.

The safety that actually matters

• Ensure tanks are properly vented to handle any pressure changes.
• Use compatible gaskets, like EPDM, to prevent leaks.
• Regularly inspect tanks for any signs of wear or damage.

Common questions

Is PASP safe for the environment?

Yes, PASP is biodegradable, making it a safer choice for the environment compared to other scale inhibitors.

What size tank should I use?

For cooling towers, tanks between 200-2,000 gallons are typical. Oilfields may require larger tanks up to 5,000 gallons.

Can PASP be used in agriculture?

Yes, it's used to enhance fertilizers by improving nutrient uptake in plants.