What is removed during the chemical treatment of emulsified oil?

In the context of chemical treatment processes for emulsified oil, the objective is to separate and remove the emulsified oil from water to allow for effective recovery and disposal. The process targets the emulsification phenomenon, which typically includes oil droplets distributed throughout the water phase, often stabilized by various emulsifying agents.

Removing emulsified oil during the treatment involves breaking the emulsification, which allows the oil to coalesce and rise to the surface for separation. This removal process leads to clearer separation of the oil from the water, thus ensuring that the undesirable oil is effectively eliminated from the system.

Other components, such as organic emulsifiers or surfactants, may still be present after the removal, depending on the specifics of the treatment process applied. However, the main goal is specifically the elimination of the emulsified oil itself. This makes the removal of emulsified oil the correct choice in the context of the question, as it is the primary focus of chemical treatment in this scenario.