Integrated air flotation sedimentation machine

I. Basic Definition
The integrated air flotation and sedimentation system is a high-efficiency wastewater treatment device that integrates air flotation and sedimentation processes. It achieves solid-liquid separation through physicochemical methods and is widely used in industrial wastewater and municipal sewage treatment.

II. Core Working Principle
The equipment combines the advantages of two major processes to synergistically purify water:

1️⃣ Air Flotation Process
An air compressor dissolves air into water at a pressure of 0.3-0.5 MPa to form supersaturated dissolved air water.
The dissolved air water is depressurized by a special release device, releasing 20-50 micron microbubbles.
These microbubbles combine with flocculated suspended solids to form a “bubble-particle” complex with a density less than water.
This complex rises rapidly due to buoyancy (within minutes), forming a scum layer.

2️⃣ Sedimentation Process
Heavier impurities not removed by air flotation settle naturally in the sedimentation zone due to gravity.
The sedimentation zone often uses an inclined tube/plate design to increase the sedimentation area and improve efficiency.
Settled sludge is collected from the conical bottom and discharged periodically.