Although many nitrification control options exist,
nitrification continues to challenge water utility operators.
The industry lacks a useful tool to help water
utilities select the most appropriate nitrification control
strategy for their systems. The nitrification potential
curve approach described in this article helps utilities
assess their current operations and make informed
decisions about the most appropriate strategies to prevent
future nitrification.
In this research, nitrification potential curves were
developed for three, full-scale chloraminated distribution
systems. The curves were then used to evaluate the
nitrification control strategies being used for each system
and show how operational changes such as reducing
water age or increasing pH could affect nitrification
potential.
Nitrification potential curves help to optimize the
operation of chloraminated distribution systems. If
more effort is put into preventing nitrification, less
effort will be required to implement more expensive
reactionary strategies such as breakpoint chlorination
or unplanned flushing. Includes 39 references, tables, figures.