FAQs: DAF Flotation System

Or-Tec DAF Flotation System for Oil & Grease Removal, Suspended Solids Separation & Industrial Wastewater Treatment

The Or-Tec DAF (Dissolved Air Flotation) Flotation System is a wastewater treatment system designed to remove fat, oil, grease (FOG), suspended solids (TSS), and reduce BOD / COD from industrial, food processing, and municipal wastewater. The system utilizes chemical coagulation, flocculation, and cavitation - generated microbubbles (white water) to separate contaminants from the wastewater stream, producing clarified effluent while concentrating solids for easy removal and disposal.

Unlike many conventional dissolved air flotation systems, the Or-Tec DAF Flotation System does not require air compressors, pressure vessels, or complicated pressure and flow controls, helping reduce capital costs, simplify operation, and minimize maintenance.

• The Or-Tec DAF Flotation System is a Dissolved Air Flotation (DAF) wastewater treatment system that removes oil, grease, fat, suspended solids, and other floatable contaminants from industrial, food processing, and municipal wastewater.
• The system combines chemical coagulation, flocculation, cavitation aeration, and flotation to produce clarified effluent while concentrating solids for efficient disposal.
• It is designed to improve wastewater treatment performance while reducing pollutant loading before discharge to municipal sewer systems or downstream treatment processes.

Feature	Details
Equipment Type	Dissolved Air Flotation (DAF) System
Maximum Standard Flow Rate	Up to 660 GPM
Higher Capacity Systems	Available upon request
Typical BOD Removal	50 - 80%
Typical TSS Removal	50 - 80%
Typical Oil & Grease (O&G) Removal	80 - 90%
Primary Contaminants Removed	Oil, Grease, FOG, Suspended Solids, Floatable Solids
Tank Construction Options	304 Stainless Steel, Epoxy-Coated Steel, or Plastic
Air Compressors Required	No
Pressure Vessels Required	No
Complex Pressure Controls Required	No
Industries Served	Food Processing, Industrial Manufacturing, Municipal Wastewater

• The Or-Tec DAF Flotation System uses a multi-stage treatment process that combines chemical coagulation, flocculation, and cavitation - generated microbubbles to separate contaminants from wastewater.
• Chemicals are first introduced to promote coagulation and floc formation. A cavitation aeration pump then produces "white water" containing extremely fine air bubbles that attach to the flocculated particles.
• The attached microbubbles float the contaminants to the surface where an automatic scraper removes the solids into a discharge auger, while clarified effluent flows over a discharge weir.

• The Or-Tec DAF Flotation System is specifically designed to remove large amounts of fat, oil, grease (FOG), suspended solids (TSS), and other floatable materials from industrial wastewater.
• Using chemical coagulation, flocculation, and cavitation - generated microbubbles, the system lifts contaminants to the surface where they are automatically removed.
• Typical oil and grease removal ranges from 80 - 90%, helping facilities meet sewer discharge limits and reduce downstream treatment costs.
• The system is widely used by meat processors, poultry plants, dairy facilities, food manufacturers, beverage plants, and other industries with high FOG wastewater.

• The Or-Tec DAF Flotation System is designed to remove fat, oil, grease (FOG), suspended solids (TSS), floatable solids, and other contaminants commonly found in industrial, food processing, and municipal wastewater.
• By removing these materials before discharge, the system reduces pollution loading and improves overall plant performance.
• The high oxygen transfer achieved through the aeration process also assists with the oxidation of sulfides.

• Typical treatment performance for the Or-Tec DAF Flotation System includes:
  • BOD Reduction: 50 - 80%
  • Suspended Solids (TSS) Reduction: 50 - 80%
  • Oil & Grease (O&G) Reduction: 80 - 90%
• Actual treatment efficiency depends on wastewater characteristics, influent loading, and chemical dosing, but these ranges represent typical operating performance.

The Or-Tec DAF Flotation System is commonly used in:

• Municipal wastewater treatment plants
• Food processing facilities
• Meat and poultry processing
• Beverage manufacturing
• Dairy processing
• Industrial manufacturing
• Paint manufacturing
• Aluminum processing
• Heavy metal processing
• General industrial wastewater treatment
• OEM wastewater treatment systems

• Many facilities choose the Or-Tec DAF Flotation System because it combines effective oil & grease removal, high suspended solids separation, and simple mechanical operation in one system.
• By eliminating the need for air compressors, pressure vessels, and complex pressure controls, the system helps reduce equipment complexity while maintaining reliable flotation performance.
• The result is optimal treatment, reduced capital costs, streamlined operating costs, low maintenance, and improved wastewater treatment efficiency.
• The Or-Tec DAF Flotation System is specifically designed to operate without air compressors, pressure vessels, or complicated pressure and flow controls.
• Eliminating these components simplifies operation, reduces maintenance requirements, lowers capital costs, and decreases the number of mechanical systems requiring routine service.

A complete Or-Tec DAF Flotation System typically includes:

• Flocculation System for coagulation and floc formation
• Aeration Zone for producing and mixing microbubbles with the wastewater
• Flotation Zone providing retention time for solids separation
• Automatic Solids Discharge Scrapers
• Discharge Auger for transporting skimmed solids
• Effluent Weir and Discharge Channel
• Variable-Speed Flocculator (when specified)
• Bottom Sludge Collection Hopper
• Washout Valve or Bottom Scraper/Auger for settled solids removal

• Yes. Unlike many traditional dissolved air flotation systems, the Or-Tec DAF Flotation System operates without air compressors, pressure vessels, or complicated pressure controls.
• Instead, it uses a cavitation aeration pump to generate the microbubbles (white water) required for flotation.
• Eliminating these components reduces equipment costs, lowers maintenance requirements, simplifies operation, and minimizes mechanical failures.
• This streamlined design makes the Or-Tec DAF an excellent choice for facilities looking for reliable wastewater treatment with lower operating complexity.

• Many municipalities charge industrial facilities based on pollutant loading, including BOD (Biochemical Oxygen Demand), TSS (Total Suspended Solids), and oil & grease.
• The Or-Tec DAF Flotation System helps reduce these contaminants before discharge by separating floatable solids and FOG from the wastewater.
• Typical treatment performance includes:
  • 50 - 80% BOD reduction
  • 50 - 80% TSS reduction
  • 80 - 90% oil & grease removal
• Reducing pollutant concentrations can help facilities lower sewer surcharges, improve compliance, reduce downstream treatment costs, and protect biological treatment systems.

Capability	Or-Tec DAF Flotation System
Or-Tec DAF Flotation System	Yes
Dissolved Air Flotation (DAF)	Yes
Oil & Grease Removal	Yes
FOG Removal	Yes
Suspended Solids Removal	Yes
BOD Reduction	Yes
Industrial Wastewater Treatment	Yes
Food Processing Wastewater	Yes
Municipal Wastewater Treatment	Yes
Chemical Coagulation	Yes
Flocculation	Yes
Microbubble (White Water) Flotation	Yes
Automatic Surface Scrapers	Yes
Automatic Solids Discharge Auger	Yes
Air Compressors Required	No
Pressure Vessels Required	No
Complicated Pressure Controls Required	No
Maximum Standard Flow Rate	Up to 660 GPM
Higher Capacity Systems Available	Yes

• The Or-Tec DAF Flotation System provides efficient removal of oil, grease, fat, suspended solids, and floatable contaminants for industrial, food processing, and municipal wastewater treatment.
• Its simplified design eliminates the need for air compressors, pressure vessels, and complex pressure control systems, reducing equipment complexity and maintenance requirements.
• By combining coagulation, flocculation, cavitation-generated microbubble flotation, and automatic solids removal, the Or-Tec Daf Flotation System delivers reliable clarification, improved plant performance, and effective pollutant reduction for a wide variety of wastewater treatment applications.