ASD-001 Ammonia Nitrogen Removal Resin Municipal Wastewater Tertiary Treatment Effluent Polishing Media

ASD-001 is a macroporous strong acid cation exchange resin built on a polystyrene-divinylbenzene copolymer with sulfonic acid groups, available in sodium (Na+) or hydrogen (H+) form. For municipal wastewater operators it works as a tertiary polishing tool: after biological nitrification, residual ammonium ions are exchanged onto the resin so the final effluent reliably meets tightening ammonia nitrogen discharge permits.

• Consistently polishes secondary effluent ammonium to low levels even when biological nitrification is unstable in cold weather.
• High total exchange capacity (>=4.35 mmol/g) minimizes resin volume and vessel footprint in plant retrofits.
• Fast kinetics suit the short contact times available in existing tertiary filter structures.
• Macroporous structure resists fouling by residual organics and suspended solids in secondary effluent.
• Regenerable with brine or dilute acid, with spent regenerant easily returned to the plant headworks for nitrogen removal.
• Robust beads maintain low pressure drop over years of service in downflow or upflow polishing columns.

• Tertiary ammonium polishing at municipal wastewater treatment plants (WWTPs).
• Effluent standard upgrades where discharge limits drop below 1.5-2 mg/L ammonia nitrogen.
• Peak-load ammonia control during wet weather or low-temperature seasons.
• Water reclamation plants producing reuse water for industry or irrigation.
• Small community plants and decentralized treatment units needing simple, reliable ammonia removal.