Breakpoint Chlorination to Control Nitrification
Breakpoint Chlorination to Control Nitrification
(OP)
I am working on a project where a chloramined drinking water system is experiencing low chlorine residual in some parts. I think that if i identify some of the sources of accelerated chloramine degradation in the system i will hopefully be able to improve the CR in the system without addition of a Booster Chlorination Station. One problem that i think is occuring significantly in the system is nitrification, based on our water testing data, Im not sure. Through reading all the AWWA manuals and reports i understand what can happen in systems and how it happens, but i am still having trouble with the major problem of what exactly is happening chemically in this system.
The major questions i still have are
-Where does our water system fit on the breakpoint curve? (i.e. why does our data show combined, free chlorine and free ammonia residual all together)
-Is our observed increase in nitrates/nitrites enough to be significant nitrification
-If we were to use breakpoint chlorination what steps would we have to follow to safely control the free chlorine residual.
I have included our water testing data.
I am stumped at this point any and all help will be greatly appreciated.
The major questions i still have are
-Where does our water system fit on the breakpoint curve? (i.e. why does our data show combined, free chlorine and free ammonia residual all together)
-Is our observed increase in nitrates/nitrites enough to be significant nitrification
-If we were to use breakpoint chlorination what steps would we have to follow to safely control the free chlorine residual.
I have included our water testing data.
I am stumped at this point any and all help will be greatly appreciated.





RE: Breakpoint Chlorination to Control Nitrification
Regards,
Kevin
RE: Breakpoint Chlorination to Control Nitrification
RE: Breakpoint Chlorination to Control Nitrification
The operator of the water distribution system should be able to identify these areas.
You will still have the problem even if you use breakpoint chlorination.