Integrated Filtration, Extraction & Drying Solutions

Oil-water separation equipment is used to separate oil and water in oil-containing water phase. Oil phase generally refers to organic phase, and water phase generally refers to aqueous solution phase or material phase. In the extraction process, it is generally used for raffinate, washing tail liquid or stripping tail liquid to recover entrained organic solvent phase.

Gravity separation: Based on the density difference between oil phase and water phase, oil phase generally floats on the water surface and water phase sinks to the bottom to realize separation, such as settling tanks and oil separation tanks.

Centrifugal separation: Accelerates oil-water phase separation by using centrifugal force field and based on density difference between oil phase and water phase. Generally, oil phase is close to the main shaft and water phase is close to the inner wall of the rotor to realize enhanced separation. Compared with gravity separation, it has the advantages of fast separation speed and high separation efficiency, such as oil-water separator.

Air flotation separation: Inject tiny bubbles into water phase materials to make oil droplets adhere to the bubble surface and float up to the water surface with bubbles to form scum, thus realizing oil-water separation.

Adsorption separation: Adsorb oil in wastewater by using porous structure of adsorption materials, such as activated carbon and diatomite.

Coalescence separation: Make tiny oil droplets coalesce into large oil droplets through lipophilic and hydrophobic properties of coalescence materials to accelerate floating separation.

Electrochemical/chemical demulsification separation: Destroy the stability of emulsified oil through electric field or chemical agents to make oil droplets coalesce and separate.

Membrane separation: Use selective permeable membranes such as ultrafiltration membrane and nanofiltration membrane to retain oil and allow water molecules to pass through.