The Tonka Water Dualator® VI is a free-standing package treatment unit that incorporates aeration, detention and filtration in a circular configuration. In moderate to warm climates, it can be placed exterior to the water treatment plant, with functional piping and valves extended to within the building for protection from the elements. When placed interior to the water plant, the aerator and detention sections of the unit typically extend through the roof, to prevent freezing and to allow for access to filtration from within the building. The Dualator® VI is self-backwashing, eliminating the need for a separate backwash pump and supply. It does not provide baffled detention or solids sedimentation, as all water is delivered to the four-cell filtration compartment after aeration.
The oxidation of iron is completed via an induced or forced draft aerator integral to the unit. After approximately 30 minutes of detention, water is filtered and ready for distribution.
Tonka Water customizes each Dualator® VI treatment system to meet the requirements of specific applications. The Dualator® VI includes a three-step process in one compact system – aeration, detention and filtration. The aeration step is for iron oxidation. If needed, calcium hypochlorite and potassium permanganate can be added after aeration for further oxidation of manganese. The detention tank allows full conversion of the oxidized iron and manganese to an insoluble filterable particle. The final step is filtration through a four-cell filter system using a dual-media filter bed of manganese greensand and anthraciteTonka Water IMAX™ or IMAR™ media, including greensand or other media.
- 1 /3
Village of Pomeroy
- 2 /3
City of Barnwell
- 3 /3