PWL-Series
High-Solids DAF System
Open-Tank DAF System for High-Solids Wastewater and Heavy Load Processing
FRC’s PWL-Series DAF handles heavy solids with a counter-current skimmer, large flotation surface, and sludge dewatering grid for efficient solids removal.
The PWL-Series DAF system from FRC is purpose-built for high-solids wastewater streams. Its low-built, rectangular design provides a large surface area for effective flotation, while the counter-current skimmer and dewatering grid maximize sludge dryness and simplify maintenance.
Wastewater flows horizontally through the open-tank PWL system while whitewater, created in an angled dissolving tube, introduces microbubbles that bind to suspended solids. These solids rise to the surface and are removed using a skimmer that moves in the opposite direction of flow, minimizing sludge carryover. The system’s built-in dewatering grid thickens sludge in place. This open configuration handles heavy solids efficiently and allows for easy inspection and maintenance.
Key Features
Low-profile rectangular tank ideal for high solids
Counter-current skimmer minimizes sludge carryover
Integrated sludge dewatering grid promotes thicker, drier sludge output
Angled air dissolving tube enables fast whitewater generation
Non-proprietary pumps
Stainless-steel construction resists corrosion in harsh environments
Fully customizable system configuration including skids, catwalks, and controls
Specifications
Flow Rate: Up to 1,020+ GPM
Free Separation Area: 14 – 510 sq ft
Construction: Stainless steel (304, 316, duplex, or custom alloys)
Applications
Meat and poultry processing
Rendering and slaughterhouses
High-solids food and beverage facilities
Mining and industrial wastewater
Municipal waste activated sludge thickening
Why choose the PWL DAF?
Built for tough, solids-heavy wastewater, the PWL-Series excels in performance, service life, and operator convenience—making it the preferred solution for demanding industries.
PWL FAQ
Q: Why choose an open-tankDAF system?
A: PWL systems are better suited for high-solids wastewater due to their large surface area and low-profile design.
Q: What is counter-current skimming?
A: It means the sludge skimmer moves opposite the water flow, reducing carryover and maximizing float recovery efficiency.
Q: Is the PWL-Series easy to maintain?
A: Yes. Its open configuration and integrated sludge grid simplify inspection, cleaning, and sludge handling.
