Implementation of water treatment by dissolved air flotation
Clean method minimizing the use of chemical
GENERAL SPECIFICATIONS
- Feeding tank.
- Centrifugal pump
- Flocculation tank, with stirrer.
- Flotation tank.
- Two recirculation pumps.
- Gas- liquid contactor.
- Water feeding circuit.
- Compressed air circuit.
- Air-to-water feeding circuit.
Instrumentation
- Water flowmeters.
- Air flowmeter.
- Manometers.
Dim : 210 x 75 x 195 cm – 250 kg
SS tubular framework 40 x 40mm
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Dissolved air flottation
This unit allows the user to perform a water treatment by flotation tanks to dissolved air
developed. It is carried out in 4 steps:
– Bubbles generated for dissolved air.
‐ Bubble adhesion to particles in order to form solid-air particles.
‐ Formation of an air/solid particle conglomerate and flotation of the formed conglomerate.
-Separation of the floating emulsion
Separation of suspended particles
Agglomeration by using air bubbles dissolved
Optimization of the process
Combination with chemical treatment (flocculation)
Feasibility study on different waters
Study of the influence to flow rate and residence time
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