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IGF - Induced Gas Flotation

Induced Gas Flotation (IGF), combined with advanced separation technology, provides a safe and reliable oil-water treatment solution suitable for stable operations.

It is a highly efficient oil-water separation technology that achieves the separation of oil, water, and solid particles through the physical principle of gas flotation. Its core mechanism utilizes high-speed water flow or ejectors to generate tiny bubbles, causing oil droplets and suspended particles to attach to the bubbles and float to the water surface, where they are subsequently collected and removed.

The IGF separation process can be divided into three key stages:

(Note: The separated oil can be collected via the oil discharge valve for reuse or further processing.)

Bubble Generation:
Negative pressure is created by high-speed water flow through ejectors or a recirculation pump, which draws in gas and shears it into fine bubbles. The bubbles and oily wastewater come into full contact in the mixing zone, where oil droplets and solid particles adhere to the bubble surfaces through surface tension. A cyclonic chamber is utilized to optimize bubble distribution and prevent bubble coalescence.
Flotation Separation:
The bubbles, carrying the oil droplets and particles, rise rapidly to the water surface, forming a layer of froth (scum). The clarified water is then discharged through the bottom outlet.
Froth Treatment:
Integrated with Variable Froth Skim (VFS) technology, the skimming frequency can be precisely adjusted via external controls.

The equipment features a freely movable design to meet the application requirements of different sites.

All equipment undergoes comprehensive shop testing to ensure it meets quality requirements and guarantees complete reliability.


Product Features

  • Variable micro-bubble technology
  • 360-degree circulation process
  • Variable oil removal technology
  • Capable of high-pressure operation
  • Compact structure with high-efficiency oil removal

Downloads: IGF—Induced Gas Flotation Datasheet (PDF)