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Horizontal tank containment area and piping Successful Trial Begins per-day generators were installed at each
arrangement at K.R. Harrington WTP. MWS staff had requested a 30-day facility, making this one of the largest
combined municipal bleach generation
redundancy for the operational staff, who trial period prior to demolition to facilities in the United States.
were also managing additional changes become familiar with the new dilution
necessitated by the flooding. and dosing systems before removal of The first of these systems was commis-
the rest of the familiar gaseous chlorine sioned at OMO on July 1, 2016. Again,
Bulk sodium hypochlorite storage systems. However, after only three weeks, the requisite 30-day proof period was
facilities were located in outdoor the operators knew that they liked and shortened as MWS Staff found that they
containment cells near the gaseous trusted the new systems enough to allow liked and trusted the new OSG equipment
chlorine storage buildings. Once these demolition to proceed early. even more than the bulk dilution systems.
facilities were completed, portions of the Six months later, the systems were com-
chlorine storage rooms were demolished On February 18, 2016, loud cheers missioned at KRH, ending an extremely
and the new peristaltic hose pumps ensued as the last rail car containing successful conversion project.
were installed. All of the new systems gaseous chlorine was removed from Continued Successful Operations
were tested and in January 2016, the the Omohundro facility. Six months
Omohundro facility was fully converted later, the last ton cylinders were likewise These systems now have been operating
to sodium hypochlorite. removed from K.R. Harrington, and the successfully for more than two years. The
department’s water treatment facilities staff still operates and maintains the bulk
were free from chlorine gas and removed dilution systems as a backup in the event
from the EPA’s requirements for Risk of mechanical failure. (However, such a
Management Planning. failure has not yet occurred.)
Second Phase
The replacement OSG and dilution
Phase Two of the project entailed the systems not only have provided a safer and
removal of the chlorinators at each facility, more reliable disinfection system for the
and their replacement with electrolytic staff of the two treatment plants, but also
on-site generation equipment. Through for the residents, visitors and neighbors
an extensive evaluation process, MWS of Music City USA. The success of this
had selected and procured the MicroClor project is a testament to the hard work and
system from Process Solutions, Inc. (PSI). cooperation of all the engineers, designers,
operators, managers and contractors who
In order to take advantage of off-peak dedicated five years to the endeavor.
electrical pricing, three 2,400-pound-
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