Oil Removal

Oil removal is the process of removing oil from a surface, liquid, or system, depending on the context in which it is used. Here are some common contexts:

1. In the water treatment industry

Oil removal means the process of separating oil from industrial wastewater before it is discharged or reused.
Methods can include:

• Gravity separation: utilizing the density difference between water and oil.

• Coalescing filters: bring small particles of oil together for easier separation.

• Membrane filtration or ultrafiltration: filters oil molecules with a finely porous membrane.

• Dissolved air flotation (DAF): uses air bubbles to lift oil to the surface.

2. In machinery or manufacturing industry

Oil removal means removing residual lubricating oil, engine oil, or coolant from metal surfaces before advanced processes such as painting, coating, or welding.
Methods include:

• Degreasing (solvent washing)

• Steam cleaning

• Ultrasonic cleaning

3. In the food industry

Oil removal can refer to the reduction of oil content in fried foods, for example with:

• Centrifugal oil remover (spinner)

• Absorbing paper (oil absorbing paper)

4. In the environmental field

Oil removal means cleaning up oil spills at sea or land.
Techniques used include:

• Skimming (picking up oil on the surface of the water)

• Bioremediation (decomposing oil with microorganisms)

• Sorbents (using oil-absorbing materials)