Heron Innovators

Liquid/solid separation solutions for the food processing industry - Food and Beverage

Installation Of SAF System For The Food Processing Industry. At Heron Innovators, our experienced team of engineers and technicians provided a fully integrated Suspended Air Flotation (SAF) system installation for a meat processing facility. For this project, the customer required a system to remove suspended solids, fats, oil and greases from wastewater. Our trailer-mounted Model SAF125 treatment system installation delivered a comprehensive solution.

The trailer-mounted system was constructed from AISI type 304 stainless steel, PVC, and polyurethane, and measured 40 ft. long x 8 ft. wide x 12 ft. high. The system is capable of flow rates to 250 gpm with a 7.5 HP feed pump. This versatile and cost-effective system is designed to use less space than most treatment systems. In addition, it also uses a minimal amount of air to float separate suspended solids, with a 0.5% air to solid ratio. During development, in-process bench testing was used to prove the concept. Heron executed a process warranty which allowed the end user to purchase the pilot test trailer as their permanent treatment solution. This trailer was delivered from stock with a six-day turnaround time which allowed the customer to put the system immediately into use.

Product Name
Trailer mounted Model SAF125 Suspended Air® Flotation (SAF®) Treatment System
Product Description
Trailer-mounted Model SAF125 Suspended Air® Flotation Treatment System. Capable of treating 250 gpm. Contained and fully integrated are:
  • 250 gpm feed pump
  • 4 in. magnetic flow meter
  • pH Control System with PID loops for acid and caustic feed
  • Controlled outlets for coagulant feed and a polymer dosing/flash mixing/aging system to promote flocculation
  • Flotation of suspended solids and associated BOD/COD
  • Skimmed solids pump
  • Fully automated continuous operation including starting/stopping system by remote signal/parameter
System Capabilities and Services Provided
Engineering design of process and components
AutoCAD drawings
In-house fabrication of mechanical and electrical equipment
Custom fabricated welded stainless steel tanks and components.
Laboratory services supporting treatability study and proof of concept determinations.
Installation and start-up support
On-going system maintenance and support
Operations and maintenance manual
Overall Part Dimensions
Length: 40 ft. L x 8 ft. W x 12 ft. H
Tightest Tolerances
± 1/16 inch
Material Used
304 stainless steel, PVC, Polyurethane
Special Features
Sold pilot trailer (250 gpm portable treatment system) as a complete packaged permanent treatment system. Customer enclosed the trailer and began using it immediately.
Additional Facts
  • System Feed Pump: 7.5 HP, 250 gpm
  • 4 in. magnetic flow meter
  • pH Control System with acid and caustic PID Loops
  • Conditioning Tank: 304 SS, 1,800 gallons, 2-compartment with 2-turbine agitators
  • Flotation Tank: Model CF-125 ClearFloater™ Cross-Flow Flotation Cell with flocculation agitator, chain and flight skimmer, solids hopper, adjustable stainless steel weir, and observation decking
  • SAF® Generator: Model F50 (13.6 gpm froth flow rating)
  • Polymer dilution and aging system
  • Acid, caustic, polymer, and frothing agent metering pumps
  • Float solids transfer pump
In process testing/inspection performed
Bench Testing for TSS, COD/BOD, FOG removal efficiency
Pilot Trailer operation to demonstrate system capability
Effective pretreatment, 1-day startup. In service since 2009.
Industry for Use
Food Processing
Delivery/Turnaround Time
6 days (delivered from stock)
Delivery Location
Buffalo, New York
Standards Met
Customer Specifications, 2D CAD Drawing