Japan Platform for Redesign: Sustainable Infrastructure (JPRSI)

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Ammonia nitrogen meter

Technology / Service Summary

Ammonia nitrogen concentration in the tank is measured in real time with an ion electrode method sensor.


The ion electrode sensor measures ammonia nitrogen concentration in the tank in real time. Measuring ammonia nitrogen concentration in biological reaction tanks at sewage treatment plants makes it possible to optimize airflow management.


Continuous measurement of ammonia nitrogen concentration in the biological reaction tank optimizes the amount of aeration air.


Continuous monitoring of ammonia nitrogen enables optimal control and management of airflow in the biological reaction tank, thus realizing energy efficiency for a carbon-neutral society.

Controlled Substance


Applicable Regions / Countries

  • Japan
  • Southeast Asia
  • China/ East Asia
  • Europe
  • Central/South America
  • ASEAN countries

    Indonesia,Cambodia,Singapore,Thailand,Philippines,Viet Nam,Malaysia,Myanmar

Related SDGs Goals

  • 6. Clean Water and Sanitation
  • 7. Affordable and Clean Energy
  • 13. Climate Action

Ammonia nitrogen meter

Youtube Videos

On-line Ammonia analysis with HORIBA HC-200NH