CN106630003A - Oily wastewater treatment device and method - Google Patents
Oily wastewater treatment device and method Download PDFInfo
- Publication number
- CN106630003A CN106630003A CN201610944997.5A CN201610944997A CN106630003A CN 106630003 A CN106630003 A CN 106630003A CN 201610944997 A CN201610944997 A CN 201610944997A CN 106630003 A CN106630003 A CN 106630003A
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- China
- Prior art keywords
- waste water
- oily waste
- activated carbon
- water
- powdered activated
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Classifications
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
Abstract
The invention discloses an oily wastewater treatment device and method. The oily wastewater treatment device comprises a wastewater tank, a suction pump, a powdered activated carbon storage tank and a contact tank, wherein the contact tank comprises a tank body and a ceramic membrane module, the ceramic membrane module is installed in the tank body, the tank body is provided with a water inlet, a water outlet, a residue discharging port and a powder inlet, the wastewater tank is communicated with the water inlet, the suction pump is communicated with the water outlet, the residue discharging port is formed in the bottom of the tank body, and the powdered activated carbon storage tank is communicated with the powder inlet to add the powdered activated carbon to the tank body. The ceramic membrane module is a container structure formed by a ceramic membrane and provided with an outlet, the outlet is communicated with the water outlet, and the ceramic membrane is formed by integrally firing a supporting layer and an effective layer provided with pore channel. By the adoption of the oily wastewater treatment device and the method, the water quality requirement of reused wastewater of an oil field can be met, and the suspended matter content and oil content of output water and the median size of suspended matter can all meet the highest requirement for reinjected water of the oil yield.
Description
Technical field
The present invention relates to technical field of waste water processing, more particularly to a kind of device and method for processing oily waste water.
Background technology
The moisture content of many oil field produced crude oil is increasing, and general water content is 70%～80%, and some oil fields are even
90% has been up to, and oil extraction-generated waste water needs to be recycled into underground reservoir after treatment, keeps formation pressure, improves rate of oil production
And recovery ratio.Oil field reinjection water water quality can directly affect the operation of water flooding effect and whole water flood treatment system and make
With the life-span, thus industry requirement oil field is returned injection water quality need to meet SY/T 5329-2012 (《Clastic rock reservoir water water
Matter index and analysis method》) basic demand.
At present the water source of reinjected water mostlys come from surface fresh water, underground water, oil-polluted water and seawater etc..Separate sources
Reinjected water processing method it is different.The wherein re-injection of oil-polluted water can improve the utilization rate of water resource, and oil-containing is solved again
The whereabouts problem of sewage, is one important source of oil field reinjection water.So water source of the oil-polluted water as reinjected water, it is right to need
Its oil content carries out strict control.The existing re-injection water treatment technology in oil field adopts conventional " three-stage " processing method, i.e., certainly
So sedimentation oil removing-coagulation oil removing-filtration oil removing；For middle permeability pay and low permeability pay, need to increase " fine filtering " place
Science and engineering skill.But, this is still extremely difficult to standard requirement.
The disclosure of background above technology contents is only used for design and the technical scheme for aiding in understanding the present invention, and it is not necessarily
Belong to the prior art of present patent application, without tangible proof show the above present patent application the applying date
In the case of disclosed, above-mentioned background technology should not be taken to evaluate the novelty and creativeness of the application.
The content of the invention
In order to solve above-mentioned technical problem, the present invention proposes a kind of device and method for processing oily waste water, disclosure satisfy that
The water quality requirement of oil field reuse waste water, going out water suspension content, oil content and suspension median particle diameter can reach oil field go back to
The peak demand of water filling.
In order to achieve the above object, the present invention is employed the following technical solutions：
The invention discloses a kind of device for processing oily waste water, including wastewater disposal basin, suction pump, contact chamber and powder activity
Charcoal storage pool, wherein：
The contact chamber includes pond body and ceramic film component, and the ceramic film component is arranged in the pond body, the pond
Body is provided with water inlet, delivery port, slag-drip opening and powder inlet, and the wastewater disposal basin connects the water inlet, the suction pump connection
The delivery port, the slag-drip opening is arranged on the bottom of the pond body, and the Powdered Activated Carbon storage pool connects the powder inlet
To add Powdered Activated Carbon into the pond body；
The ceramic film component is the structure of container with one outlet formed by ceramic membrane, described in the outlet
Delivery port, the ceramic membrane is that the one firing of the active layer of having by supporting layer and with pore channel is formed.
Preferably, the aperture of the pore channel for having an active layer is 60～100nm.
Preferably, the material of the ceramic membrane is Al2O3。
Preferably, the average grain diameter of the Powdered Activated Carbon is 200 mesh.
Preferably, the iodine sorption value >=900mg/g of the Powdered Activated Carbon, methylenum careuleum adsorptive value >=150mg/g.
Preferably, the contact chamber also include aerator, the aerator be arranged on the ceramic film component lower section with
Air aeration is carried out to the surface of the ceramic film component.
The invention also discloses a kind of method for processing oily waste water, using the device of the process oily waste water to oil-containing
Waste water is processed, and is comprised the following steps：
S1：Oily waste water and predetermined medicament are mixed in the wastewater disposal basin；
S2：Mixed oily waste water is passed in the pond body by the water inlet, the Powdered Activated Carbon storage
Deposit pond and add Powdered Activated Carbon into the pond body；
S3：The suction pump from the exit of the ceramic film component extracts the oily waste water after process out.
Preferably, also included adjusting the suction pump to allow the membrane flux of the ceramic film component to keep before step S2
In 60L/m2·h。
Preferably, the aeration rate of air aeration and the water inlet of the oily waste water are carried out using the aerator in step S2
The ratio of amount is 9:1.
Preferably, step S2 also includes：Air aeration is carried out to the ceramic film component surface using aerator.
Compared with prior art, the beneficial effects of the present invention is：The device and method of the process oily waste water of the present invention
Using ceramic membrane and Powdered Activated Carbon combination oily waste water is processed, wherein ceramic membrane have high temperature resistant, acid-alkali-corrosive-resisting,
The advantages of long service life, regenerating easily；And in ceramic film process oily waste water, major problem is that ceramic membrane blocking is asked
Topic, combines adopt Powdered Activated Carbon in the present invention, and wherein Powdered Activated Carbon has loose structure and larger specific surface area, right
Organic matter has very strong adsorption capacity, by adding Powdered Activated Carbon in contact chamber, can to oily waste water in it is organic
Thing is quickly adsorbed, and so as to play the Effect of Pretreatment to ceramic membrane, reduces the filtration load of ceramic membrane, while powder is lived
Property charcoal particle in fluidization campaign, scrubbing action is also played ceramic membrane surface, it is possible thereby to it is existing to mitigate ceramic membrane surface pollution
As, ceramic membrane transmembrane pressure is reduced, the flux of ceramic membrane is improved, extend the filter cycle of ceramic membrane；Therefore, by ceramic membrane and powder
Last activated carbon combines and collaboration process, the significantly formation of decelerating membrane pollution and the reduction of membrane flux is carried out to oily waste water, shows
Superior performance, disclosure satisfy that the water quality requirement of oil field reuse waste water, in the suspension content of water outlet, oil content and suspension
Value particle diameter can reach the peak demand of oil field reinjection water.At the same time, the device and method of process oily waste water of the invention
Can be transformed on the basis of existing process for treating oil-containing waste water, reduce processing unit and floor space, service life length,
Easy to operate, stable water outlet, has been greatly reduced the cost for processing on the basis of the effluent quality compared with high-quality is obtained.
In further scheme, aerator is provided with below ceramic film component in contact chamber, aerator can be to pottery
The surface of porcelain membrane module carries out air aeration, the greasy dirt of ceramic membrane surface on the one hand can be cleaned by air-flow, on the other hand also
Agitation Powdered Activated Carbon can be played promotes charcoal particle also to strengthen Powdered Activated Carbon and oil-containing while also cleaning ceramic membrane surface
The contact of waste water, so as to strengthen ceramic membrane scrub effect, further alleviates ceramic membrane contamination and plugging, extends making for ceramic film component
Use the life-span.
Description of the drawings
Fig. 1 is the apparatus structure schematic diagram of the process oily waste water of the preferred embodiment of the present invention.
Specific embodiment
Below against accompanying drawing and with reference to preferred embodiment the invention will be further described.
As shown in figure 1, the preferred embodiment of the present invention disclose it is a kind of process oily waste water device, including wastewater disposal basin 1, plus
Teat pipette 2, contact chamber, Powdered Activated Carbon storage pool 5, suction pump 7 and clear water reserviors 8, wherein contact chamber include pond body 3, ceramic membrane group
Part 4 and aerator 6, wherein ceramic film component 4 are arranged in pond body 3, and pond body 3 is provided with water inlet, delivery port, the and of slag-drip opening 31
Powder inlet, the connection water inlet of wastewater disposal basin 1, the connection delivery port of suction pump 7, slag-drip opening 31 is arranged on the bottom of pond body 3, powder activity
Charcoal storage pool 5 connects powder inlet to add Powdered Activated Carbon into pond body 3；Ceramic film component 4 is by having that ceramic membrane is formed
The structure of container of one outlet, outlet delivery port is so that suction pump 7 can be extracted out after the filtration treatment of ceramic film component 4
Oily waste water；Ceramic membrane is that the one firing of the active layer of having by supporting layer and with pore channel is formed, wherein there is the hole of active layer
The aperture of gap passage is 60～100nm, and the material of ceramic membrane is Al2O3；Aerator 6 is arranged on the lower section of ceramic film component 4 with right
The surface of ceramic film component 4 carries out air aeration, and aerator 6 includes air compressor 61, and air compressor 61 is for by sky
Gas is transported in aerator 6.
In a further embodiment, the average grain diameter of the Powdered Activated Carbon in Powdered Activated Carbon storage pool 5 is 200 mesh,
Iodine sorption value >=900mg/g, methylenum careuleum adsorptive value >=150mg/g.
Using concretely comprising the following steps that the device of process oily waste water as shown in Figure 1 is processed oily waste water：
S1：Oily waste water is passed in wastewater disposal basin 1, while being added to predetermined conditioning medicament using dosing pump 2 useless
In pond 1, quickly mixed by agitator 11；
S2：Oily waste water overflow is entered in the pond body 3 of contact chamber, while Powdered Activated Carbon storage pool 5 adds into pond body 3
Plus Powdered Activated Carbon, and air compressor 61 delivered the air in aerator 6, aerator 6 is to the ceramic film component in pond body 3
4 carry out air aeration；Now Powdered Activated Carbon is quickly adsorbed to the organic matter in oily waste water, and Powdered Activated Carbon
Grain also plays scrubbing action in fluidization campaign to the surface of ceramic film component 4, and the one side of aerator 6 passes through air-flow
The greasy dirt on the surface of ceramic film component 4 can be cleaned, agitation Powdered Activated Carbon is on the other hand may also operate as and is promoted charcoal particle
Clean the surface of ceramic film component 4 also strengthens contact of the Powdered Activated Carbon with oily waste water simultaneously, further enhances ceramic membrane wiping
Effect is washed, the problem for alleviating ceramic membrane contamination and plugging is reached；
S3：Finally by the effect of suction pump 7, compel the inside for allowing water to flow into ceramic film component 4, and from ceramic film component
4 outlet is drawn into after suction pump 7, is entered back in clear water reserviors 8, obtains clear water；Wherein adsorb the breeze of oil from slag-drip opening
31 discharge, and are additionally carried out disposing.
The aeration rate of air aeration carried out using aerator 6 wherein in step S2 and oily waste water enters into entering for pond body 3
The ratio of the water yield is 9:1 (as in the unit interval aerator 6 carry out the volume of the air of air aeration and pond body enter water volume it
Than), scouring of the aerator 6 to ceramic film component 4 and the stirring action effect to Powdered Activated Carbon can be caused to reach most preferably.
Wherein before step S2 is passed into oily waste water in pond body 3, also need to be adjusted suction pump, to allow ceramics
The membrane flux of membrane module 4 is maintained at 60L/m2H, under this state, can cause process of the ceramic film component 4 to oily waste water to imitate
Fruit reaches optimal.
The method of the process oily waste water of the present invention is further described with reference to instantiation.
Example one：
In this example, oily waste water is processed using Powdered Activated Carbon/ultrafiltration ceramics film method, wherein the oily waste water being passed through
Water quality parameter be：Oil concentration：112.70mg/L, turbidity is 9.23NTU；SS (suspended particulates after addition Powdered Activated Carbon
Thing) content be 45mg/L.The operating condition of ceramic membrane is：Initial transmembrane pressure is 4.4kPa, and membrane flux is 60L/m2·h；Powder
The dosage of last activated carbon is：45mg/L.
Process time 1,5,10,20,30,40,50,60,70,80,90,100,110, the 120min moment, detect water outlet
Oil concentration is respectively 1.28,1.15,1.22,1.06,0.95,0.96,0.95,0.97,0.90,0.93,0.84,0.79,
0.84、0.89mg/L。
Detect that the oil concentration of the water that the suction pump for obtaining is drawn into is equal after can be seen that half an hour from above-mentioned testing result
Less than 1mg/L, turbidity is consistently less than 0.2NTU, is in extremely low level, fully meets wastewater discharge standard；Filter cross-film after 2h
Pressure reduction increment is 0.1kPa, illustrates that the ceramic film component pollution that ceramic membrane is subject to after 2h is filtered of the present invention is very little；Wherein
60L/m is up in membrane flux2Under conditions of h, ceramic membrane blockage is still minimum, illustrates the process oily waste water of the present invention
Device can run steadily in the long term.
Example two：
In this example, oily waste water is processed using Powdered Activated Carbon/ultrafiltration ceramics film method, wherein the oily waste water being passed through
Water quality parameter be：Oil concentration：112.50mg/L, turbidity is 9.17NTU；Adding the SS contents after Powdered Activated Carbon is
60mg/L.The operating condition of ceramic membrane is：Initial transmembrane pressure is 4.7kPa, and membrane flux is 60L/m2·h；Powdered Activated Carbon
Dosage is：60mg/L.
In process time 1,5,10,20,30,40,50,60,70,80,90,100,110,120min, detection water outlet oil is dense
Degree is respectively：0.34、0.36、0.42、0.37、0.37、0.34、0.33、0.41、0.35、0.34、0.40、0.42、0.40、
0.38mg/L, is below 1mg/L, turbidity<0.15NTU, it is 0.2kPa to filter 2h transmembrane pressures increment.
The clear water that can be seen that after being processed by the method for this example from above-mentioned testing result is similarly fully met
Wastewater discharge standard, and the pollution that ceramic membrane is subject to is also very little.
Membrane treatment process has the advantages that floor space is little, water outlet suspended solids content is low, stable water outlet, therefore membrane technology
It is relatively specific for oil field reinjection water process field.But, there is many shortcomings, including oil resistant pollution energy in existing conventional organic film
Power is poor, backwash is frequent, easy aging, short life etc., and this causes organic film to be restricted in oiliness sewage treatment field；And metal
Film in use, due to Membrane cleaning it is inconvenient, using also restrained.Applicant has found that ceramic membrane is compared by contrast
Organic film and metal film have numerous advantages, such as high temperature resistant, acid-alkali-corrosive-resisting, service life in oily waste water treatment field
It is long, regenerating easily, chemical agent addition is less or without addition；And with the continuous maturation of present ceramic membrane processing technology, its
Cost is also constantly reduced, in can apply to the handling process of oil field reinjection water.But, by ceramic film process oil-containing
In waster water process, there is a blockage problem that major problem is that ceramic membrane, thus cause the ceramic membrane filter cycle to contract significantly
Short, backwash is frequently, complex operation, efficiency are reduced, cost rises high, this seriously inhibits ceramic membrane at oil-containing wastewater
The popularization and application in reason field.
And Powdered Activated Carbon and ceramic membrane to be creatively combined the present invention technique applied oily waste water is processed
In, wherein Powdered Activated Carbon has loose structure and larger specific surface area, there is very strong adsorption capacity to organic matter, therefore logical
Cross addition Powdered Activated Carbon can quickly to adsorb the organic matter in oily waste water, play the pretreatment to ceramic membrane and make
With the filtration load of reduction ceramic membrane；Meanwhile, Powdered Activated Carbon particle is played ceramic membrane surface and cleaned in fluidization campaign
Effect, it is possible thereby to mitigate ceramic membrane surface contamination phenomenon significantly, reduces ceramic membrane transmembrane pressure, improves the flux of ceramic membrane,
Extend the filter cycle of ceramic membrane.Therefore, by the way of Powdered Activated Carbon and ceramic membrane are combined, it is particularly suited for oily waste water
In the handling process of water.
Further, also aerator is set in the lower section of ceramic film component, aerator can be to the table of ceramic film component
Face carries out air aeration, and the greasy dirt of ceramic membrane surface on the one hand can be cleaned by air-flow, on the other hand may also operate as agitation
Powdered Activated Carbon promotes charcoal particle also to strengthen contact of the Powdered Activated Carbon with oily waste water while also cleaning ceramic membrane surface, from
And strengthen ceramic membrane scrub effect, and further alleviate ceramic membrane contamination and plugging, extend the service life of ceramic film component.
And the device of the process oily waste water of the present invention can enter on the basis of existing process for treating oil-containing waste water
Row transformation, such that it is able to reduce processing unit and floor space, service life length, easy to operate, stable water outlet, is obtaining
Compared with the cost that process has been greatly reduced on the basis of the effluent quality of high-quality.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The present invention be embodied as be confined to these explanations.For those skilled in the art, do not taking off
On the premise of present inventive concept, some equivalent substitutes or obvious modification can also be made, and performance or purposes are identical, all should
When being considered as belonging to protection scope of the present invention.
Claims (10)
1. a kind of device for processing oily waste water, including wastewater disposal basin and suction pump, it is characterised in that also including contact chamber and powder
Activated carbon storage pool, wherein：
The contact chamber includes pond body and ceramic film component, and the ceramic film component is arranged in the pond body, in the pond body
Water inlet, delivery port, slag-drip opening and powder inlet are provided with, the wastewater disposal basin connects the water inlet, and the suction pump connection is described
Delivery port, the slag-drip opening is arranged on the bottom of the pond body, the Powdered Activated Carbon storage pool connect the powder inlet with to
Addition Powdered Activated Carbon in the pond body；
The ceramic film component is the structure of container with one outlet formed by ceramic membrane, water outlet described in the outlet
Mouthful, the ceramic membrane is that the one firing of the active layer of having by supporting layer and with pore channel is formed.
2. the device for processing oily waste water according to claim 1, it is characterised in that the pore channel for having an active layer
Aperture is 60～100nm.
3. the device for processing oily waste water according to claim 1, it is characterised in that the material of the ceramic membrane is
Al2O3。
4. it is according to claim 1 process oily waste water device, it is characterised in that the average grain of the Powdered Activated Carbon
Footpath is 200 mesh.
5. it is according to claim 1 process oily waste water device, it is characterised in that the Powdered Activated Carbon iodine absorption
Value >=900mg/g, methylenum careuleum adsorptive value >=150mg/g.
6. according to any one of claim 1 to 5 process oily waste water device, it is characterised in that the contact chamber is also
Including aerator, the aerator is arranged on the lower section of the ceramic film component to carry out sky to the surface of the ceramic film component
Gas aeration.
7. it is a kind of process oily waste water method, it is characterised in that using the device described in any one of claim 1 to 6 to containing
Oily waste water is processed, and is comprised the following steps：
S1：Oily waste water and predetermined medicament are mixed in the wastewater disposal basin；
S2：Mixed oily waste water is passed in the pond body by the water inlet, the Powdered Activated Carbon storage pool
Add Powdered Activated Carbon into the pond body；
S3：The suction pump from the exit of the ceramic film component extracts the oily waste water after process out.
8. it is according to claim 7 process oily waste water method, it is characterised in that before step S2 also include adjust
The suction pump is maintained at 60L/m to allow the membrane flux of the ceramic film component2·h。
9. it is according to claim 7 process oily waste water method, it is characterised in that in step S2 adopt the aerator
The ratio of the aeration rate and the inflow of the oily waste water that carry out air aeration is 9:1.
10. according to any one of claim 7 to 9 process oily waste water method, it is characterised in that step S2 is also wrapped
Include：Air aeration is carried out to the ceramic film component surface using aerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944997.5A CN106630003A (en) | 2016-11-02 | 2016-11-02 | Oily wastewater treatment device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944997.5A CN106630003A (en) | 2016-11-02 | 2016-11-02 | Oily wastewater treatment device and method |
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| CN106630003A true CN106630003A (en) | 2017-05-10 |
Family
ID=58821154
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| CN201610944997.5A Pending CN106630003A (en) | 2016-11-02 | 2016-11-02 | Oily wastewater treatment device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376653A (en) * | 2017-09-22 | 2017-11-24 | 南京中医药大学 | A kind of method for reducing fouling membrane in Chinese medicine extract or waste water membrane separating process |
| CN109502887A (en) * | 2018-11-21 | 2019-03-22 | 北京国电富通科技发展有限责任公司 | Activated coke absorption and tubular membrane filtration combination water treatment system |
| CN110407298A (en) * | 2019-07-22 | 2019-11-05 | 济南上华科技有限公司 | It is a kind of for the pretreated tubular type film processing system of refuse leachate and the pretreating process of the system |
| CN111153512A (en) * | 2018-11-08 | 2020-05-15 | 中国石油化工股份有限公司 | Method and device for treating wastewater containing benzene series and application thereof |
| CN111747550A (en) * | 2020-06-10 | 2020-10-09 | 苏州华烯环保科技有限公司 | Waste water membrane separation device |
| CN112387118A (en) * | 2019-08-19 | 2021-02-23 | 北京奥博水处理有限责任公司 | Online self-cleaning ceramic membrane filter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376653A (en) * | 2017-09-22 | 2017-11-24 | 南京中医药大学 | A kind of method for reducing fouling membrane in Chinese medicine extract or waste water membrane separating process |
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| CN112387118A (en) * | 2019-08-19 | 2021-02-23 | 北京奥博水处理有限责任公司 | Online self-cleaning ceramic membrane filter |
| CN111747550A (en) * | 2020-06-10 | 2020-10-09 | 苏州华烯环保科技有限公司 | Waste water membrane separation device |
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Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |