Folded Flow® Dissolved Air Flotation Separator

The Folded Flow® DAF system’s simple and innovative design “folds” the flow by removing effluent from the same end of the tank as the influent is introduced, resulting in a higher hydraulic loading rate.

In the Folded Flow® design, as the density current travels laterally, clean water, being heavier, peels away from the bottom of the density current and flows downward. At the bottom of the tank, the downward flow gathers in a laminar fashion to form a horizontal return current, which accelerates as it nears the outlet. The downward velocity of liquid from the surface layer to the return stream at the bottom is relatively constant along the length of the tank and is uniformly close to a minimum flow. This ensures that the bubbles are moving upward throughout the entire volume of the tank.

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Features and Benefits

High Overflow Rate
Small Footprint
Low Cost
Easy to Cover
Excellent Oil and Grease Removal
Excellent TSS Removal
High Float Concentration
Easily Handles Settled Solids
Tolerant of Large Flow Changes
Tolerant of Large Concentration Changes

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Don Thiel

Product Manager

262.521.8386

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Product Documentation

Brochure
Folded Flow® Dissolved Air Flotation Separator

Article
Folded Flow® DAF Helps Mohawk Paper Raise Capacity

Parts & Services

For Parts and Service call 800.931.1755
or e-mail: envirexinfo.water@siemens.com

NEW - Reliability Program for API & DAF equipment - Our innovative Evaluate, Train and Troubleshoot (ETT) reliability program gives you access to our expertise every day.

Featured Case Study

Salt Lake Refinery Wastewater Treatment Upgrade Passes With Flying Colors
Folded Flow® Dissolved Air Flotation System Improves Wastewater Treatment System at Glatfelter

Flotation Equipment and Systems - (DAF, IAF)