Phosphorus-Free & Green Antiscalants (PASP, PESA)
Phosphorus-free green antiscalants — polyaspartic acid (PASP) and polyepoxysuccinic acid (PESA) — provide biodegradable scale control without contributing to phosphorus discharge or eutrophication.
Why phosphorus-free
Phosphonate discharge is increasingly restricted because phosphorus drives algal blooms. PASP and PESA are biodegradable, phosphorus-free and nitrogen-free (PESA), giving green scale and corrosion control.
Where they fit
Cooling water and RO where effluent limits or green credentials matter; also WT-907 Non-P blends.
Frequently asked questions
What is a phosphorus-free antiscalant?
A scale inhibitor with no phosphorus, such as PASP or PESA, used where phosphorus discharge is restricted; both are biodegradable.
Is PASP biodegradable?
Yes — polyaspartic acid (PASP) is readily biodegradable and phosphorus-free, a 'green' scale and corrosion inhibitor.
About the manufacturer
VCYCLETECH is a China-based manufacturer of water treatment chemicals — antiscalants, scale & corrosion inhibitors, coagulants, flocculants, biocides, dispersants and paper chemicals — ISO 9001 / 14001 / 45001 certified, with a COA on every batch and OEM/ODM service. See our quality & certifications.
Related: What is PASP · PASP · PESA