Yokogawa in the Water Industry

What is Sea Water Reverse Osmosis Desalination?

Desalination is the removal of dissolved salts from seawater, mineralized groundwater, brackish water from inland seas, and municipal wastewater. The desalination process renders these waters safe for irrigation, industrial applications, human consumption, and other purposes. Desalination methods include thermal processes (heat transfer and phase change) and membrane processes (separating water from dissolved salt using thin, semipermeable synthetic materials).

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  • Reliable monitoring and control system of the world's first, 16" seawater reverse osmosis (SWRO) membrane desalination plant.
  • Accurate measurements of the SWRO parameters with Yokogawa conductivity meters, pH meters, and magnetic flow meters contribute to a longer SWRO membrane life and reduce Total Cost of Ownership.

By understanding what causes the difficulties in pH measurements and having the proper equipment, stable and accurate pure water pH measurement can be accomplished.


Kind of. Calibration itself will not extend the life of a sensor, however, a sensor that is not calibrated properly can cause unreliable measurements - that are often misdiagnosed leading to unnecessary replacements.


Optimizing the maintenance cycle is not always straightforward. In some cases, cleaning once a week is sufficient and other processes may require every 8 hours.


Learning these four lessons will help you improve your engineering skills and most importantly extend the life of your pH sensors.


Select the correct pH glass and reference type to improve your pH sensor lifetime and you can limit or even eliminate the effects of temperature and pressure on especially the reference sensor.


The lifetime of a pH sensor has a significant impact on the overall annual costs of a pH measuring loop. Optimizing four key factors will decrease these costs and optimize process control and overall plant efficiency.




How much do you know about pressure transmitters? Are you accurately, quickly and reliably measuring pressure? Ultimately, the drive of any good pressure transmitter is to get an accurate, reliable pressure measurement to the data user quickly. This video gives you the answers to your basic questions about pressure and pressure transmitters.

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