Process Engineered Water Equipment, LLC.

Daf Designs - Three critical dissolved air flotation design parameters for Successful aeration of Wastewater are described.

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Today's wastewater managers and technicians routinely encounter a variety of clarification situations. Such encounters may be an opportunity to improve performance of an existing dissolved air flotation (DAF) system or to help in selecting a new unit. Through application of a critical analysis, managers and technicians will find their water clarification results will be improved in the long term. By understanding these design parameters, potential limitations or design flaws can be avoided.

Hydraulic Loading Rate
A DAF units hydraulic loading rale is given as the flow in gallons per square foot of surface area. The hydraulic loading rate is sometimes also called the surface overflow rate or the overflow hydraulic rate. The loading rate is a mathematical function thai is descriptive of two competing velocities within a DAF vessel. These are the horizontal velocity of the water and vertical velocity of any suspended solid within that water column.

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