Acoustic separation of liquid hydrocarbons from wastewater
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United States of America Statutory Invention Reg
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-
Aug 6, 1996
Grant Date -
N/A
app pub date -
May 26, 1994
filing date -
May 26, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for separating liquid hydrocarbons from a wastewater using acoustic energy below cavitation is disclosed. The wastewater containing the residual hydrocarbons is introduced into a vessel which has at least two groups of acoustic transducers attached to it. Acoustic energy is applied to the fluid at an intensity below cavitation level and sufficient to induce at least one standing wave in the fluid. The liquid hydrocarbons are allowed to coalesce within the vessel to a coalesced droplet size of about 20 microns. These coalesced hydrocarbons are then separated from the wastewater.
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