WesTech’s new R5™ DAF (dissolved air flotation) unit – pre-engineered, modular, and skid-mounted with variable tank sizes, flow, and recycle rates – provides a flexible, easy-to-install, and affordable solution for smaller municipal and commercial water and wastewater treatment operations, plant pilot testing, and backup for unexpected plant equipment breakdowns.
The new DAF unit supports projects requiring reduced lead time, or where upfront costs for a fully-customized design is prohibitive. The unit is ideal for pilot testing in applications including potable water, tertiary wastewater, industrial process water, small communities and camps, and pretreatment to reverse osmosis/nanofiltration.
The R5 DAF is a perfect fit for smaller commercial and industrial operations like breweries, wineries, dairies, food processors, refineries, and laundries.
The pre-engineered DAF units come in several tank sizes and recycle rates, said Michael Vanderhooft, an engineer with WesTech. These standardized units are designed to fit any application.
The main components are skid-mounted with the DAF unit to minimize installation requirements, and are customizable with several options, including screw conveyor, standby pump, and material of construction. Recycle flow rates can be set up to vary from 25-375 gpm, depending on system needs.
Dissolved air flotation is ideal in clarifying water and wastewater where the specific gravity of suspended solids or contaminants is close to, or less than 1.0, such as oils, grease, algae, and other low-density solids. Applications include wastewater clarification, sludge thickening, product recovery, filter backwash recovery and algae removal.