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Title:
PROCESSING METHOD FOR WASTE LIQUID CONTAINING CRUDE OIL AND PROCESSING EQUIPMENT FOR WASTE LIQUID CONTAINING CRUDE OIL
Document Type and Number:
Japanese Patent JP2019018192
Kind Code:
A
Abstract:
To provide a processing method for a waste liquid containing a crude oil and processing equipment for a waste liquid containing a crude oil which enable a reduction in the usage of a flocculant by efficiently recovering oil and water in a waste liquid containing a crude oil such as slop, and an improvement in the water quality of a separated waste water.SOLUTION: A processing method for a waste liquid containing a crude oil includes a heating step of heating a waste liquid containing a crude oil to 45-65°C, an emulsion breaker addition step of adding an emulsion breaker to the heated waste liquid, a centrifugal separation step of centrifugally separating the waste liquid with the addition of an emulsion breaker into three components of light liquid, heavy liquid, and sludge, and a flocculant addition step of adding a flocculant to heavy oil obtained in the centrifugal step to flocculate an oil content and sludge remaining in the heavy liquid.SELECTED DRAWING: Figure 1

Inventors:
KOBAYASHI TAKUYA
SUZUKI YUKI
KANO KAZUNORI
SUZUKI TOSHIHIRO
ONISHI NORIHIKO
SUZUKI ARATA
Application Number:
JP2017142115A
Publication Date:
February 07, 2019
Filing Date:
July 21, 2017
Export Citation:
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Assignee:
SWING CORP
HAKUTO KK
International Classes:
B01D17/00; B01D17/038; B01D17/04; C02F1/44; C02F1/52; C10G31/10
Domestic Patent References:
JPS59112808A1984-06-29
JP2000279707A2000-10-10
JP2007526123A2007-09-13
JP2004243300A2004-09-02
JPH05245471A1993-09-24
JPS61254208A1986-11-12
JPS50131876A1975-10-18
JPH10165707A1998-06-23
Foreign References:
WO2013091032A12013-06-27
Attorney, Agent or Firm:
Axis International Patent Business Corporation