Heron Innovators

Liquid/solid separation solutions for the fruit processing industry - Manufacturing, Other

This project installed a model SAF250 Suspended Air Flotation (SAFƒ) treatment system for a California food processing customer. They contacted Heron Innovators for a system to be used for wastewater pretreatment. At Heron Innovators, we build mechanically and electrically reliable systems, and provide installation support which comprehensively meets our customer’s operational needs. The system is ideal for food processing wastewater pretreatment for reducing TSS and BOD/COD in discharges to sewers.

Designed for efficient particle and liquid separation, the system is made of 304 stainless steel, PVC, and polyurethane. It features a 3,500 gallon stainless steel conditioning tank measuring 8 feet in diameter and 10 feet in height, a Model CF250 ClearFloater™ flotation tank, a Model F50 SAF® generator, and a Model DWC3012 dewatering conveyor. The SAF® system is designed to achieve efficient flotation of solids in wastewater, and was delivered within a 16-week turnaround time, including installation. It operates on a simple automatic startup and shutdown control sequence. Full project details, including system unit dimensions, are listed below. Contact Heron Innovators to learn more.

Product Name
Model SAF250 Suspended Air® Flotation (SAF®) Treatment System
Product Description
Complete Model SAF250 Suspended Air® Flotation Treatment System. This SAF® System is used for fruit processing wastewater pretreatment in order to reduce TSS and BOD/COD discharges to sewer, thereby saving on surcharges, and to reduce volume of solids requiring disposal.
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

O&M manual

Overall Part Dimensions
Conditioning tank: 3,500 gal. , 8 ft. Dia. x 10 ft. H
Model CF250 ClearFloater: 7 ft. W x 11 ft. L x 9 ft. H
Model F50 Froth Generator: 53 in. W x 61 in. L x 78 in. H
Model DWC3012 Dewatering Conveyor: Plastic chain belt 30 in. W x 12 ft. L, 0.030 in. openings
PM-300 Polymer Dilution/Aging System: 2 ft. Dia. x 3 ft. H
Tightest Tolerances
+/- 1/16 inch
Material Used
304 stainless steel, PVC, Polyurethane
Special Features
Sole source procurement.
Complete system including conditioning tank, dewatering conveyor, and polymer dilution/aging system
Additional Facts
Sole Source Procurement
Flow rate treated: 500 gpm
  • 15 HP Surge Tank Recirculation Pump
  • 10 HP System Feed Pump
  • 4-in. Magnetic Flow Meter
  • Model F50 froth generator
  • Model CF250 ClearFloater™ flotation tank with agitated flocculation chamber, chain and flight skimmer, and observation decking
  • Model DW3012 Dewatering Conveyor
  • Peristaltic solids pump
  • 2-compartment 3,500-gal. stainless steel conditioning tank with turbine agitators
  • Polymer dilution and aging system and metering pump
  • Coagulant metering pump
  • Control panels
In process testing/inspection performed
Bench Testing
Reduced TSS and BOD/COD discharges to sewer, thereby saving on surcharges. Reduced volume of solids to disposal, saving on disposal costs. Simple and rapid automatic startup and shutdown procedures.
Industry for Use
Fruit Processing
Delivery/Turnaround Time
16 weeks
Delivery Location
Clovis, California
Standards Met
Customer Specifications, 2D CAD Drawing