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Method and system for recovering oil and removing oil from a resulting oil-water mixture

A technology of oil-water mixture and oil recovery, which is applied in the direction of chemical instruments and methods, separation methods, loose filter material filters, etc., and can solve the problems of equipment size increase, shortened service life, medium wear, etc.

Inactive Publication Date: 2015-06-24
VEOLIA WATER SOLUTIONS & TECH SUPPORT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the increased headroom volume requirement results in an overall increase in device size, which is undesirable in many applications
[0008] Additionally, the level of shear and other forces developed within the pump can cause significant wear to the media, reducing its usable life

Method used

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  • Method and system for recovering oil and removing oil from a resulting oil-water mixture
  • Method and system for recovering oil and removing oil from a resulting oil-water mixture
  • Method and system for recovering oil and removing oil from a resulting oil-water mixture

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Embodiment Construction

[0016] With further reference to the drawings, a filtration device is shown therein and indicated generally by the numeral 10 . As will be discussed below, the filtration apparatus or device 10 is designed to remove oil from water, and will also remove other contaminants, such as suspended solids. Apparatus 10 includes a container 12 containing therein filter media 14, which in one embodiment includes nut shell media. Nutshells have an attraction for oil and as such can be used in filtration equipment for removing oil from water. figure 1 The nutshells 14 in the configuration of ® are arranged to form a bed of media supported by a screen 16 that retains the media in the filtration device 10 . It should be noted that other types of media (eg, plastic beads) may be used in filter device 10 .

[0017] Filtration device 10 includes an inlet conduit 18 that incorporates a valve 20 configured to allow selective fluid communication of the conduit with vessel 12 . Inlet conduit 18 ...

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PUM

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Abstract

A filtering device comprises a vessel for containing filtering media such as nutshells. Associated with the filtering device is an eductor for scrubbing and cleaning the media and removing contaminants such as oil from the media. The eductor includes an inlet port for receiving a motive liquid. Further, the eductor includes an inlet port for receiving media held in the vessel. In operation, a motive liquid is directed into the eductor and this induces media in the vessel into the eductor. By continuously directing motive liquid from an external source into the eductor, this results in the media being fluidized and circulated and recirculated through the eductor, giving rise to a slurry that contains liquid, the media and removed contaminants. A portion of the slurry is discharged from the filtering device while the media is retained in the filtering device.

Description

technical field [0001] The present invention relates to a filter device, and in particular to a media filter device, such as a nut shell media filter device. Background technique [0002] Media filters are well known in the art and are used to remove contaminants from fluids, eg, suspended solids from water. Media filters typically comprise particulate filter media, such as sand, anthracite, gravel, etc., arranged to form a filter bed within a filter vessel wherein the fluid to be treated flows through the filter bed so that suspended solids become entrapped in individual particles of the media in the gap formed between. [0003] Many filtration applications may also require the removal of selected liquid components from mixtures or emulsions, eg, oil from water. In such cases, a filter medium can be selected that is attractive to the liquid components to be removed. For example, the use of nut shells, such as walnut or hickory nut shells, can remove oil from water, where...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/10B01D24/46
CPCB01D24/105B01D24/4684B01D24/4689
Inventor N.E.兰格
Owner VEOLIA WATER SOLUTIONS & TECH SUPPORT
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