As a design-build contractor, Globaltech permitted, designed, constructed, and commissioned the Town of Davie Color Removal System.
The new 4 mgd color removal treatment system uses an ion exchange resin housed in vessels to remove organic material. The system was added at the end of the Town’s existing lime softening plant process to enhance the water quality. The resin is similar to that used in a home water softener system except that it removes negative ion including slightly negative organic/color molecules. The ion exchange system installed by Globaltech was manufactured by Tonka Equipment Company in Plymouth, Minnesota.
The new color removal system was placed into service at the Town’s South Water Treatment Plant on July 16, 2008. The new anion exchange system reduces the color from 15 color units to less than 2 color units. At 15 color units, Davie’s finish water had a yellowish tint. With the new color system on-line, the Town’s water is virtually colorless to the naked eye. The color is naturally occurring in the Town’s groundwater source and can range from 40 to 60 color units in the raw water.
In addition to the noticeable reduction in color, the new system removes organic material in the water and will allow the plant to meet more stringent water quality regulations for disinfection byproducts. The reduction in organic material lowers the formation of disinfection byproducts such as trihalomethanes and haloacetic acids (regulated byproducts) which are formed when chlorine used for disinfection reacts with the organics naturally found in the groundwater.
The new system was designed and constructed in less than a year. Currently, the City of Pembroke Pines, the Town of Lantana, Palm Beach County, and the Town of Jupiter utilize similar systems.
Town of Davie