. . . A Design, Engineering and Sales Company that Specializes in Dissolved Air Flotation Clarifiers and Other Water Treatment-Related Equipment

DAF Corporation offers two types of dissolved air flotation clarifiers, the FC Maximizer and the RC Uni-Max. The FC Maximizer clarifier processes raw water flows of 20 g.p.m. to 11,000 g.p.m. utilizing the zero velocity concept in a shallow circular tank approximately 32 inches deep. Tank diameters range from 4 feet to 70 feet. RC UniMax clarifiers are rectangular in shape and are available in a range of sizes to process water flows 20 g.p.m. to 300 g.p.m.

DAF Corp. conducts laboratory DAF feasibility analysis of process waters, provides onsite pilot feasibility studies, design, manufacturing, and complete installations of a DAF clarifier systems. All labor, parts, and equipment supplied by DAF Corp. are covered by a one-year warranty.

These clarifiers find applications in pulp and paper mills, recycled fiber deinking, food processing, dairy, dairy manure, algae removal, textile industries, municipalities, before membrane systems, and others. Total suspended solids removal to below 50 ppm of filterable solids and thickened sludge consistency of 2-4% is indicative of the efficient operation of these devices.

The standard FC Maximizer features an all stainless steel round tank, epoxy painted carbon steel tank bottom supports, side wall stiffeners, heavy duty tank rim, top bridge and catwalks. Units can be fabricated entirely of stainless steel on request. All clarifiers feature a standard sludge cone, clear water separation wall, air mixing tube (AMT), center rotary joint, sludge scoop and top bridge with attached assembly.

Skid-Mounted FC Maximizers are very popular and preassembled with all ancillary piping, valves, controls, and wiring, ready for operation. Skid-mounted DAF clarifiers range from 30 g.p.m. (4' diameter) to 450 g.p.m. (15' diameter).

Laboratory Services

DAF Corp has a very well equipped facility to conduct treatability testing of water and wastewater samples. These laboratory studies enable the selection of cost effective, suitable water conditioning chemistry, sludge volumes. Determination of solids rise rates are also confirmed here, which will tell us the volume of recycle water required for efficient DAF treatment. Based upon laboratory testing and analytical data, we assess our customer’s requirements and provide a suitable solution.

Testing and development facility at DAF Corp

Site Feasibility Studies and Pilot Testing

A pilot-scale dissolved air flotation system at the customer's facility is often conducted during the proposal guarantee stage of a project. Although we have an extensive database of DAF process applications from which to draw, at times it is essential that pilot trials be conducted to appraise the variability of the influent and to ensure that the customer's requirements for effluent quality and sludge characteristics are satisfied.

DAF Corp. utilizies two six-foot self-contained skid mounted FC Maximizers, and one six-foot RC UniMax rectangular clarifier. These FC Maximizer pilot units operate at influent flow rates of 10-50 g.p.m., while the RC UniMax pilot unit operates at 10-100 g.p.m.

During the pilot trials DAF Corp. requests that customers:

1) supply sufficient quantities of treatment chemicals for pilot operation,
2) arrange for testing of water samples, and
3) assist in placing the pilot clarifier and provide for water, compressed air at 1 scfm, at 90 psi and electrical tie-ins.

Support equipment is available from DAF Corp. if needed, to make certain that the clarifier receives a consistent flow of properly pretreated influent. This equipment includes trash pumps, equalization/pH adjustment tanks, oil/water separators, coagulation tank, influent pumps, tube flocculator bundles, dry/liquid polymer makeup systems, sludge pumps, and storage tanks. Please check out this link to view the pilot clarifiers and support equipment.

FC Maximizer Skid-Mounted Clarifier, 6' diameter (1.83 m), 55 gpm (12.5 m3 hr-1) capacity. The unit pictured has the skid-mounted AMT separate from the tank support	This 6' skid-mounted FC Maximizer has the air dissolving tube mounted on the skid below the clarifier tank. Due to the presence of an operator platform adjacent to the electrical panel, this unit has a slightly larger footprint than the FC Maximizer at the left.	RC UniMax has a hydraulic capacity of ca. 100 gpm including recycled. This skid-mounted unit has dimensions of approximately 8' 6' x 6' x 7'6" high.

Turn Key Installations DAF Corporation, teamed with Accurate Mechanical Contractors, Inc., offers turn key installations with guaranteed deliveries and completion dates. DAF Corp. provides a one-year warranty on all components, except motors, drive bearings, air panels, seals and scrapers.