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[KEML]

I have been given this mock information that I made into a chlorine breakpoint graph. It's at pH 7 and temp of 20 degrees Celsius.

 

I'm supposed to be designing a disinfection system for a 3 log inactivation of protozoa cysts and 4log inactivation of viruses, with a 2mg/L free chlorine residual.

 

The graph doesn't tell me what kind of reactor it was in, or the contact time.

 

So is there anything useful I can get out of it?

 

To me the graph seems totally pointless... unless I'm missing something?

 

Thanks!

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