Title:
COMBINED PROCESS VESSEL APPARATUS
Document Type and Number:
WIPO Patent Application WO2001044118
Kind Code:
A3
Abstract:
An apparatus for removing oil or gas from a wastewater flow stream includes a vessel having a vessel wall surrounding an interior. A flow inlet is provided for transmitting waste water to be treated to the vessel interior. The vessel provides a primary oil outlet and a secondary oil outlet. An oil bucket receives floating oil for transfer to the primary oil outlet. A transversely positioned matrix of media extends across the cross section of the vessel interior to separate the vessel interior into first and second sections. The hydrocyclone separator carries a plurality of de-oiler hydrocyclone liners. The separator is positioned at least partially within and communicates with the vessel interior. The hydrocyclone separator is positioned upstream of the secondary oil outlet and downstream of the matrix of coalescing media. Oil separated by the hydrocyclone liners flows to the secondary oil outlet. Water separated by the hydrocyclone liners flows to the water outlet.
Inventors:
FAVRET UNCAS B JR
Application Number:
PCT/US2000/042380
Publication Date:
September 19, 2002
Filing Date:
November 29, 2000
Export Citation:
Assignee:
ENGINEERING SPECIALITIES INC (US)
International Classes:
B01D17/00; B01D19/00; C02F1/20; B01D17/02; B01D21/24; C02F1/40; (IPC1-7): B01D17/00; B01D17/022; B01D17/032; B01D17/038; B01D19/00; E21B43/34
Domestic Patent References:
| WO1991018676A1 | 1991-12-12 |
Foreign References:
| EP0394585A2 | 1990-10-31 | |||
| US3212232A | 1965-10-19 | |||
| US5064448A | 1991-11-12 | |||
| US3396512A | 1968-08-13 | |||
| US4778494A | 1988-10-18 | |||
| US4447322A | 1984-05-08 |
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