SYSTEM AND METHOD FOR RECOVERING OIL FROM A WASTE STREAM

摘要

The systems and methods recover oil from an emulsified waste stream. A
coagulating agent and/or a flocculating agent, or both, are added to the
emulsified waste stream to accelerate separation into an aqueous stream and a
thickened emulsified stream. The coagulating agent can comprise alum. The
flocculating agent can comprise a cationic polymer. Separation of the
thickened emulsified stream into an oil-rich component, a second aqueous
component, and a solid cake can be effected by mechanical separation in a
centrifuge, filter, or press.