Hi,

I am trying to understand why acid scrubber need a ph device and conductivity device as part of the scrubber System. And what will happen to the scrubber , if these 2 devices were not install? Or faulty ? 

Thank you ! 

Hello mesnowball;

As explained in the following document from Emerson, ph and conductivity monitoring is used to ensure that the scrubbing chemical used in the process is maintained maintainted at a correct level in the operation.

https://www.google.ca/url?sa=t&source=web&rct=j&url=http://www.emerson.com/documents/automation/application-note-ph-conductivity-measurements-for-scrubbers-en-71958.pdf&ved=2ahUKEwjYyt7Kq4TdAhWxt1kKHaQDD3oQFjAAegQIBhAB&usg=AOvVaw2pt8zVfHvkmfOCcgH83UhB

Hope this helps, 

Daniel Chartier 

Hello avensis;

Have a look at this Wikipedia explanation, it might be ne enlightening:

https://en.m.wikipedia.org/wiki/PH

Notice this information in the link above:

"Contrary to popular belief, the pH value can be less than 0 or greater than 14 for very strong acids and bases respectively.^[2] "

Hope this helps, 

Daniel Chartier