NAPCEN cares about the air you breathe. We offer products according to international norms and standards and we continue to provide better service and support even after years of installation.

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Ammonia Scrubber

Ammonia Scrubber is an air pollution control device designed to remove ammonia (NH3) gas from industrial exhaust streams. Commonly used in industries such as fertilizer production, food processing, and wastewater treatment, the scrubber operates by passing ammonia-laden air through a packed bed where it contacts a scrubbing liquid, typically an acidic solution. The system often includes mist eliminators and recirculation pumps for efficient operation.

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Ammonia Scrubber

Ammonia scrubbers typically use a diluted sulfuric acid (H2SO4) solution to neutralize ammonia gas in industrial exhaust streams. This chemical reaction produces a non-volatile salt, which is then removed from the system through a wastewater blow down process. The cleaned air is safely discharged through the stack. High removal efficiency is essential, as ammonia is a toxic and regulated substance. Emissions must be treated to meet strict environmental standards before being released into the atmosphere.

Why Choose Our Ammonia Scrubber?

  • 98 % ammonia removal efficiency with caustic or acidic liquor
  • Lightweight, corrosion-proof FRP construction for long service life
  • Low pressure-drop design cuts fan power costs
  • Modular capacities from 500 m³/h to 40,000 m³/h ideal for new builds.
  • Integrated pH control, recirculation pump and demister for turnkey installation
  • Typical Industries Served:

  • Fertilizer and urea production
  • Biotech fermentation protein hydrolysis
  • Food processing cold-storage facilities
  • Pharmaceutical synthesis and labs
  • Wastewater treatment sludge handling
Ammonian Scrubber FAQs

About NH3 Gas Removal Systems

An ammonia scrubber passes contaminated air upward through a packed bed while a slightly acidic or water-based solution trickles downward, dissolving and neutralizing NH3 gas.
FRP (Fiber-Reinforced Plastic) offers excellent corrosion resistance, lightweight strength and a longer lifespan than metal in alkaline or acidic environments.
By adjusting the scrubbing liquor chemistry and adding extra stages, our system can simultaneously remove NH3, amines and fine particulates.
Every ammonia scrubber is designed to meet or exceed Central Pollution Control Board (CPCB) emission limits, and we provide third-party performance validation if required.
Routine checks include pump inspection, nozzle cleaning and pH monitoring of the recirculation tank. Smoke Absorbers offers annual maintenance contracts for worry-free operation.