CN114159837A - High-efficient oily water coalescence-separation device - Google Patents
High-efficient oily water coalescence-separation device Download PDFInfo
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- CN114159837A CN114159837A CN202111462991.1A CN202111462991A CN114159837A CN 114159837 A CN114159837 A CN 114159837A CN 202111462991 A CN202111462991 A CN 202111462991A CN 114159837 A CN114159837 A CN 114159837A
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- coalescence
- separation
- filter element
- oil
- module
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- 238000000926 separation method Methods 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000004581 coalescence Methods 0.000 claims abstract description 27
- 238000003795 desorption Methods 0.000 claims abstract description 9
- 230000005484 gravity Effects 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 6
- 230000008901 benefit Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 38
- 239000010865 sewage Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
- B01D17/045—Breaking emulsions with coalescers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/008—Mobile apparatus and plants, e.g. mounted on a vehicle
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a high-efficiency oily water coalescence-separation device, which adopts a coalescence-separation module to perform demulsification coalescence-desorption treatment on emulsified oil which is difficult to remove by a primary gravity separation module and dispersed oil with smaller particle size. The coalescence-separation module is formed by combining a coalescence filter element and a separation filter element. The invention informs the arrangement of the coalescence filter element, thereby playing the role of polymerizing and coarsely granulating oil drops and improving the oil-water separation effect. Meanwhile, the oil drops can be desorbed on line on the coalescing filter element, so that the problem of over-quick resistance rise is solved, and the service life of the coalescing filter element is prolonged; through setting up the separation filter core, realized growing up the interception separation that drips, prolonged tertiary processing unit's life and adsorption module's change frequency.
Description
Technical Field
The invention relates to a treatment technology of oily water, in particular to an oily water treatment device suitable for a ship.
Background
The treatment device of the marine oily water treatment device is mainly three-stage treatment. Wherein, the gravity separation module is generally applied to the first stage, the coalescence separation module is applied to the second stage, and the adsorption module or the membrane module filtration module is applied to the third stage.
At present, the first-stage gravity separation is mainly to arrange a filler (an inclined plate component or a corrugated plate component) in a cabinet body, separate oil from water by utilizing the density difference of oil and water, and settle and intercept solid impurities. The main structural form is that a plurality of layers of coalescence plate groups are arranged in an equipment main body, oil-water two-phase mixed liquid automatically floats and settles under the action of self buoyancy when flowing through plate gaps, and oil drops are subjected to physical action mainly including wetting and coalescence on the surface of a plate and are condensed into large-diameter liquid drops, and finally an oil film is formed and separated from the plate. The processing objects are mainly floating oil and dispersed oil with larger particle size, and the processing capability is very limited for dispersed oil and emulsified oil with smaller particle size.
If the oily water passing through the gravity separation module directly enters the three-stage treatment module, the oily water is easily saturated too fast by the adsorption module or the resistance of the membrane module filtration module is increased fast. Therefore, a secondary coalescence-separation module is needed to perform secondary treatment on the effluent after gravity separation. The traditional coalescence-separation filter element adopts oleophylic materials, so the coalescence effect on oil drops is better, but the desorption effect is general, and the problems that the filter element is saturated and needs to be frequently replaced after the resistance is increased are easily caused.
Therefore, an efficient oil sewage coalescence-separation device is needed, which can well realize coalescence and coarse granulation of oil drops and can quickly and thoroughly desorb and separate the oil drops from the coalescence-separation filter element.
Disclosure of Invention
The invention aims to provide a high-efficiency oily water coalescence-separation device which is used for treating ship oily water.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a high-efficient oily water coalescence-separation device, adopts the coalescence-separation module, carries out the breakdown of emulsion coalescence desorption to the emulsified oil that one-level gravity separation module is difficult to get rid of and the less dispersed oil of particle size.
Further, the coalescence-separation module is formed by combining a coalescence filter element and a separation filter element.
Furthermore, the coalescence filter element adopts a modified nano demulsification material for realizing demulsification and separation in a pure physical process.
Further, the separation filter core adopts super oleophobic hydrophilic material, the separation filter core is used for carrying out the interception benefit with the oil drop that the coalescence filter core desorption goes out, and water can easily pass through the separation filter core.
The invention has the beneficial effects that:
1. the coalescence filter element is arranged, so that the effect of oil drop polymerization and coarse granulation is achieved, and the oil-water separation effect is improved. Meanwhile, the oil drops can be desorbed on line on the coalescing filter element, the problem that the resistance rises too fast is solved, and the service life of the coalescing filter element is prolonged.
2. The separation filter element is arranged, so that the interception and separation of the coalesced large oil drops are realized, the service life of the third-stage treatment unit is prolonged, and the replacement frequency of the adsorption module is increased.
Drawings
FIG. 1 is a front view of a coalescing separation module structure of the present invention;
FIG. 2 is a bottom view of a coalescing separation module structure of the present invention.
Detailed Description
The invention provides a high-efficiency oily water coalescence-separation device, and in order to make the advantages and technical scheme of the invention clearer and clearer, the invention is described in detail with reference to specific embodiments.
The efficient oil-sewage coalescence-separation device provided by the invention adopts the coalescence-separation module 1, and carries out demulsification coalescence-desorption treatment on emulsified oil which is difficult to remove by the primary gravity separation module and dispersed oil with small particle size.
As shown in fig. 1 and 2, the coalescing and separating module 1 is composed of a coalescing filter element 1-1 and a separating filter element 1-2.
Coalescence filter core 1-1 adopts a modified nanometer breakdown of emulsion material, and when oil water mixture was through this material, oil dropped can collide with material skeleton surface, because the roughness on material surface and lipophilic make oil dropped can be caught by the material surface, then spread out on the skeleton surface, the oil film that adheres to on the skeleton can be along with the increase grow gradually of collision number of times, after accumulating to a certain degree, the buoyancy that the oil received is greater than the adhesive force, thereby the oil film can break away from the skeleton come-up, becomes the oil slick. In the whole process, the material continuously captures the aggregated oil drops until the oil drops are desorbed on line after growing up, thereby realizing demulsification and separation in a pure physical process.
The separation filter element 1-2 adopts super oleophobic hydrophilic material, oil drops desorbed from the coalescence filter element can be intercepted and recovered by the separation filter element, and water can easily pass through the separation filter element.
The oily water treated by the primary gravity separation module enters the coalescence filter element 1-1 from the water inlet 3 of the coalescence separation module 1, the water inlet mode is water inlet at the center, and water is discharged from the periphery. Oil drops are gathered on the surface of the coalescence filter element 1-1, and when the oil drops are accumulated to a certain degree, the buoyancy force applied to the oil is larger than the adhesive force, and the oil drops can be separated from the filter element and become floating oil. In the whole process, the material continuously captures the aggregated oil drops until the oil drops are desorbed on line after growing up, thereby realizing demulsification and separation in a pure physical process.
The effluent of the coalescence filter element 1-1 enters the periphery of the separation filter element 1-2, and the central effluent enters the rear-end third-stage treatment module. The separation filter element 1-2 adopts super oleophobic hydrophilic material, oil drops desorbed from the coalescence filter element can be intercepted and recovered by the separation filter element, and water can be easily discharged from a water outlet 4 of the coalescence separation module 1 after passing through the separation filter element 1-2.
Example 1:
the oil sewage of a certain experimental base of Shanghai Songjiang New bridge has the inflow Q of 0.5m3Per hour, 3000ppm emulsified oily water was prepared according to the MEPC107.49 protocol.
Coalescing separation filter element design parameters
| First stage | Second stage | |
| Number of |
3 pieces (2 coalescence 1 desorption) | 3 pieces (2 coalescence 1 desorption) |
| Precision of separation | 5-10um | 1-5um |
| Concentration of effluent | 5-10ppm | 1-3ppm |
Claims (4)
1. The utility model provides a high-efficient oily water coalescence-separation device which characterized in that: and a coalescence separation module is adopted to carry out demulsification, coalescence and desorption treatment on emulsified oil which is difficult to remove by the primary gravity separation module and dispersed oil with smaller particle size.
2. The efficient oily water coalescing and separating device according to claim 1, wherein: the coalescence-separation module is formed by combining a coalescence filter element and a separation filter element.
3. The efficient oily water coalescing and separating device according to claim 2, wherein: the coalescence filter element adopts a modified nano demulsification material and is used for realizing demulsification and separation in a pure physical process.
4. The efficient oily water coalescing and separating device according to claim 3, wherein: the separation filter core adopts super oleophobic hydrophilic material, the separation filter core is used for carrying out the interception benefit with the oil that the coalescence filter core desorption goes out to drip, and water can easily pass through the separation filter core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111462991.1A CN114159837A (en) | 2021-12-02 | 2021-12-02 | High-efficient oily water coalescence-separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111462991.1A CN114159837A (en) | 2021-12-02 | 2021-12-02 | High-efficient oily water coalescence-separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114159837A true CN114159837A (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111462991.1A Pending CN114159837A (en) | 2021-12-02 | 2021-12-02 | High-efficient oily water coalescence-separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114159837A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408153A (en) * | 2013-07-29 | 2013-11-27 | 常州大学 | Physical emulsion resolving treating device for sewage containing emulsified oil and treating method thereof |
| CN212282988U (en) * | 2020-05-28 | 2021-01-05 | 山东华闻节能环保装备有限公司 | Condensed water deoiling device |
| CN213668041U (en) * | 2020-09-14 | 2021-07-13 | 长兴零零零环境科技有限公司 | Coalescence formula oil water separator |
-
2021
- 2021-12-02 CN CN202111462991.1A patent/CN114159837A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408153A (en) * | 2013-07-29 | 2013-11-27 | 常州大学 | Physical emulsion resolving treating device for sewage containing emulsified oil and treating method thereof |
| CN212282988U (en) * | 2020-05-28 | 2021-01-05 | 山东华闻节能环保装备有限公司 | Condensed water deoiling device |
| CN213668041U (en) * | 2020-09-14 | 2021-07-13 | 长兴零零零环境科技有限公司 | Coalescence formula oil water separator |
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