CN103359861A - Treating technology and treating system for oil sand oil exploitation sewage - Google Patents
Treating technology and treating system for oil sand oil exploitation sewage Download PDFInfo
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- CN103359861A CN103359861A CN2013103299398A CN201310329939A CN103359861A CN 103359861 A CN103359861 A CN 103359861A CN 2013103299398 A CN2013103299398 A CN 2013103299398A CN 201310329939 A CN201310329939 A CN 201310329939A CN 103359861 A CN103359861 A CN 103359861A
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Abstract
The invention provides a treating technology for oil sand oil exploitation sewage. The treating technology comprises the following steps: (a) oil sand oil exploitation sewage is subjected to homogenization in a homogeneity tank, the sewage after homogenization is then subjected to air floatation and oil removal in an air floatation and oil removal device, the removal rate of suspension oil is 85%-95%, and the removal rate of emulsified oil is 5 wt%-10 wt%; (b) the sewage obtained from the step (a) is subjected to flocculation and air floatation in a flocculation and air floatation device, and flocculates and flocculation and air floatation sewage are separated; (c) the flocculation and air floatation sewage is subjected to centrifugal separation to obtain oil sand layer reinjection water. The invention further provides a treating system for oil sand oil exploitation sewage. The treating system treats the oil sand oil exploitation sewage to obtain oil sand layer reinjection water which meets water quality requirements.
Description
Technical field
The present invention relates to technical field of sewage, relate in particular to treatment process and the treatment system of tar sand oil exploitation sewage.
Background technology
China is the country of a poor-water, and national annual lack of water total amount reaches 1,200,000,000 tons, and process water accounts for about 80% of urban water supply.Along with the fast development of China's economy, the increase of population, water pollution increases the weight of day by day, and the shortage of water resources problem seriously restricts the development of industrial or agricultural.Therefore, at present the sewage disposal meeting is used as the preferred option that solves water shortage problem.
Oil-sand is a kind of settling sand that is rich in rock asphalt, its essence is the mixture of pitch, sand, rich ore clay and water, and wherein, asphalt content is 10wt%～12wt%, and the mineral such as sand and clay are 80wt%～85wt%, and all the other are water.The tar sand oil that oil-sand produces after processing through excavation industry just can be employed through further processing, if sewage discharges without rationally processing, will cause environmental pollution.
After oil-sand drops into exploitation, the energy of pay sand own will constantly be consumed, and cause pay sand pressure constantly to descend, and underground tar sand oil is degassed in a large number, and viscosity increases, and oil well output also can greatly reduce.In order to keep or to improve sand pressure, obtain higher recovery ratio, must carry out water filling to the oil-sand stratum.The pay sand water filling namely utilizes water injection well that water is injected oil reservoir, to replenish and the maintenance sand pressure.
For oily(waste)water can be fully used, the pay sand that can reinject after tar sand oil exploitation sewage is processed reuses, its oleaginousness≤20mg/L of water quality requirement of oil reservoir re-injection water, and suspended substance≤20mg/L, pH are 6.5～7.5.If tar sand oil exploitation sewage namely carries out re-injection without rationally processing, surface facility can not normally be moved, but also can bring harm because of reservoir choke, also can cause environmental pollution simultaneously, affect the tar sand oil safety in production.Therefore the invention provides a kind for the treatment of process of tar sand oil exploitation sewage, make the water after the processing can be as oil reservoir re-injection water.
Summary of the invention
The technical problem that the present invention solves is to provide a kind for the treatment of process and treatment system of tar sand oil exploitation sewage, and the water that obtains through treatment process of the present invention can be used in oil reservoir re-injection water.
In view of this, the invention provides a kind for the treatment of process of tar sand oil exploitation sewage, may further comprise the steps:
A) tar sand oil is exploited sewage and carried out homogenization treatment in the homogeneous groove, the sewage after the homogenization treatment is entered air-float degreasing device carry out the oil removal by air bubbling processing, making the suspension the oil removal efficiency is 85wt%～95wt%, and the emulsification the oil removal efficiency is 5wt%～10wt%;
B) sewage that step a) is obtained enters the flocculation-air floating device and carries out the flocculation-air floating processing, separates throw out and flocculation-air floating sewage;
C) described flocculation-air floating sewage is carried out centrifugation, obtain oil reservoir re-injection water.
Preferably, homogenization treatment is specially described in the step a):
Described tar sand oil exploitation sewage is entered the homogeneous groove, add emulsion splitter, and regulate described tar sand oil and exploit the pH to 6.5 of sewage～7.5.
Preferably, the treatment time of described oil removal by air bubbling is 40～60min, and temperature is 5～60 ℃.
Preferably, add flocculation agent in the process that described flocculation-air floating is processed, described flocculation agent is organic polymer coargulator and inorganic polymer flocculant.
Preferably, described organic polymer coargulator is cationic polyacrylamide; Described inorganic polymer flocculant is polymerize aluminum chloride or polymeric silicicacid iron.
Preferably, in the step b), take described sewage as base, the input amount of described organic polymer coargulator is 3～20mg/L, and the input amount of described inorganic polymer flocculant is 30～80mg/L.
The present invention also provides a kind for the treatment of system of tar sand oil exploitation sewage, comprises homogeneous groove, air-float degreasing device, flocculation-air floating device and whizzer; The outlet of described homogeneous groove is connected with the entrance of described air-float degreasing device, and the outlet of described air-float degreasing device is connected with the entrance of described flocculation-air floating device, and the outlet of described flocculation-air floating device is connected with the entrance of described whizzer.
Preferably, described whizzer is horizontal screw centrifuge.
The invention provides a kind for the treatment of process and treatment system of tar sand oil exploitation sewage.In the process of processing tar sand oil exploitation sewage, tar sand oil to be exploited sewage carried out successively homogenization treatment, oil removal by air bubbling is processed, flocculated suspension is processed and centrifugal treating; The present invention carries out homogenization treatment to tar sand oil exploitation sewage in the homogeneous groove, oil in water emulsion is converted into suspension oil, again the sewage after the homogenization treatment is entered air-float degreasing device and carry out the oil removal by air bubbling processing, with the suspension oil in the sewage, oil in water emulsion is floating to the water surface, making the suspension the oil removal efficiency is 85wt%～95wt%, the emulsification the oil removal efficiency is 5wt%～10wt%, then the sewage behind the oil removal by air bubbling is entered the flocculation-air floating device and carry out the flocculation-air floating processing, make the suspended substance in the sewage surperficial floating to sewage, throw out is separated with flocculation-air floating sewage, then flocculation-air floating sewage is separated in whizzer, thereby obtain oil reservoir re-injection water.Experimental result shows, oleaginousness is less than 20mg/L in the water after the tar sand oil exploitation sewage disposal of the present invention, and suspended solid is less than 20mg/L, and the pH value is 6.5～7.5, satisfies oil reservoir re-injection water quality standard.
Description of drawings
Fig. 1 is the treatment system schematic diagram of tar sand oil exploitation sewage of the present invention.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just as further specifying the features and advantages of the present invention, rather than to the restriction of claim of the present invention.
For tar sand oil exploitation sewage is fully used, can be used in oil reservoir re-injection water, the embodiment of the invention discloses a kind for the treatment of process of tar sand oil exploitation sewage, may further comprise the steps:
A) tar sand oil is exploited sewage and carried out homogenization treatment, the sewage after the described homogenization treatment is carried out oil removal by air bubbling, making the suspension the oil removal efficiency is 85wt%～95wt%, and the emulsification the oil removal efficiency is 5wt%～10wt%;
B) sewage that step a) is obtained carries out flocculation-air floating to be processed, and separates throw out and flocculation-air floating sewage;
C) described flocculation-air floating sewage is carried out centrifugation, obtain oil reservoir re-injection water.
For tar sand oil exploitation sewage is fully used, the present invention tar sand oil is exploited that sewage is processed so that the sewage after processing for oil-sand stratum re-injection water.Fig. 1 is the treatment system schematic diagram of tar sand oil exploitation sewage of the present invention.In the process of processing tar sand oil exploitation sewage, at first tar sand oil is exploited sewage and in homogeneous groove 1, carried out homogenization treatment, wherein the part oil in water emulsion is converted into suspension oil.Described homogenization treatment process is specially:
Tar sand oil is exploited sewage enter in the homogeneous groove 1, add acid or alkali and regulate the pH to 6.5 of described sewage～7.5, and add the quaternary ammonium salt emulsion splitter, the described tar sand oil exploitation treatment time of sewage in homogeneous groove 1 is 40～90min, and temperature is 5～60 ℃.
Described tar sand oil exploitation sewage then enters air-float degreasing device 2 with the exploitation of the tar sand oil after homogenization treatment sewage and carries out the oil removal by air bubbling processing through after the homogenization treatment, and making the suspension the oil removal efficiency is 85wt%～90wt%, and the oil in water emulsion clearance is 5wt%～10wt%.In the process of described oil removal by air bubbling, a large amount of microbubbles that the air-flotation system by air-float degreasing device 2 bottoms produces, floating to the sewage surface, the upper strata oil slick reclaims by overflow port with the suspension oil in the sewage, oil in water emulsion.The time that described oil removal by air bubbling is processed is preferably 40～60min, and temperature is preferably 5～60 ℃.
The tar sand oil exploitation sewage of processing through oil removal by air bubbling enters flocculation-air floating device 3, carries out flocculation-air floating and processes.The preferred flocculation agent that adds in the process that flocculation-air floating is processed; Described flocculation agent is preferably inorganic polymer flocculant and organic polymer coargulator; It is inorganic polymer flocculant or polymeric silicicacid Ferrite inorganic polymer flocculant that described inorganic polymer flocculant is preferably polymerize aluminum chloride; Described organic polymer coargulator is organic polymer coargulator well known to those skilled in the art, is preferably cationic polyacrylamide.Flocculating agent molecule amount of the present invention is preferably 8,000,000～2,500 ten thousand, regulates the molecular weight of flocculation agent by synthesis technique, and the molecular weight of flocculation agent and pending polymer, organic macromolecule is complementary, and has the wide spectrum suitability.By adjusting the composite use of flocculating agent molecule amount and organic floculant and inorganic flocculating agent, can effectively remove the suspended substance in the waste water, various petroleum assistant and metal ion etc., successful is better than conventional water conditioner.
In the process that flocculation-air floating is processed, the sewage behind the oil removal by air bubbling enters in the mixing reactor of flocculation-air floating device, adds simultaneously flocculation agent, forms separable throw out; Entering air-floating apparatus through pretreated sewage mixes with the dissolved air water that air dissolved pump provides, make the bubble adhesion of dissolved air water release on throw out, bubble fully mixes flocculation agent, sewage and forms a large amount of throw outs, throw out at the effect float downward of microbubble to the water surface, form scum silica frost, by the slag scraper of flocculation-air floating device described scum silica frost is received to storing up slag chute again.
At last flocculation-air floating effluent adopting whizzer 4 is separated, described whizzer 4 is preferably horizontal screw centrifuge.Solid waste centralized recovery after the centrifugation is used for slurries additive agent, and the water outlet after the centrifugation is used for oil reservoir re-injection water.
The invention provides a kind for the treatment of process and treatment system of tar sand oil exploitation sewage.In the process of processing tar sand oil exploitation sewage, tar sand oil to be exploited sewage carried out successively homogenization treatment, oil removal by air bubbling is processed, flocculated suspension is processed and centrifugal treating; The present invention carries out homogenization treatment to tar sand oil exploitation sewage in the homogeneous groove, oil in water emulsion is converted into suspension oil, again the sewage after the homogenization treatment is entered air-float degreasing device and carry out the oil removal by air bubbling processing, with the suspension oil in the sewage, oil in water emulsion is floating to the water surface, making the suspension the oil removal efficiency is 85wt%～95wt%, the emulsification the oil removal efficiency is 5wt%～10wt%, then the sewage behind the oil removal by air bubbling is entered the flocculation-air floating device and carry out the flocculation-air floating processing, make the suspended substance in the sewage surperficial floating to sewage, throw out is separated with flocculation-air floating sewage, then flocculation-air floating sewage is separated, thereby obtain oil reservoir re-injection water.Experimental result shows, oleaginousness is less than 20mg/L in the water after the tar sand oil exploitation sewage disposal of the present invention, and suspended solid is less than 20mg/L, and the pH value is 6.5～7.5, satisfies oil reservoir re-injection water quality standard.
The present invention also provides a kind for the treatment of system of tar sand oil exploitation sewage, and described treatment system comprises homogeneous groove 1, air-float degreasing device 2, flocculation-air floating device 3 and whizzer 4; The outlet of described homogeneous groove 1 is connected with the entrance of described air-float degreasing device 2, and the outlet of described air-float degreasing device 2 is connected with the entrance of described flocculation-air floating device 3, and the outlet of described flocculation-air floating device 3 is connected with the entrance of described whizzer 4.
The present invention adopts above-mentioned treatment system that tar sand oil exploitation sewage is processed.Tar sand oil exploitation sewage at first enters homogeneous groove 1 and carries out homogenization treatment, is suspension oil with the oil in water emulsion Partial Conversion in the described tar sand oil exploitation sewage; Then the sewage after the homogenization treatment is entered air-float degreasing device 2, described air-float degreasing device 2 is air-float degreasing device well known to those skilled in the art, and the present invention has no particular limits.In air-float degreasing device 2, the sewage behind the homogeneous after treatment, the suspension the oil removal efficiency is 85wt%～90wt%, the emulsification the oil removal efficiency is 5wt%～10wt%.
Tar sand oil exploitation sewage enters flocculation-air floating device 3 through behind the oil removal by air bubbling, and described flocculation-air floating device 3 preferably includes mixing reactor, air-floating apparatus, slag scraper and storage slag chute.Described flocculation-air floating device 3 is preferably the two-stage air flotation oil remover that pressure air-dissolving air-float system that the Beijing Botong Haina Petroleum Technology Co., Ltd provides or Liaoning Huafu Environment Engineering Co., Ltd. provide.
The water outlet that to hang at last solidifying air supporting processing enters whizzer 4 and carries out centrifugation, and the solid waste after the centrifugation reclaims and is used for making slurries additive agent, and the water outlet after the centrifugation is used for oil reservoir re-injection water.
In order further to understand the present invention, below in conjunction with embodiment treatment process and the treatment system of tar sand oil exploitation sewage provided by the invention are elaborated, protection scope of the present invention is not limited by the following examples.
Composition with weakly alkaline tar sand oil exploitation waste water is as shown in table 1, and table 1 is the composition of tar sand oil exploitation waste water.Tar sand oil is exploited waste water at first enter homogeneous groove 1, the hydrochloric acid that adds 50～500ppm in homogeneous groove 1 is adjusted wastewater pH to 6.5～7.5, and the quaternary ammonium salt emulsion splitter that adds 20～100ppm is converted into suspension oil with oil in water emulsion, and working temperature is 60 ℃.Waste water behind the homogeneous was air-float degreasing device 2 interior hydraulic retentions 40 minutes, and working temperature is 40 ℃.Flocculation-air floating device 3 is advanced in water outlet after oil removal by air bubbling is processed, and adding respectively 30～80mg/L polymerize aluminum chloride is inorganic polymer flocculant and 3～20mg/L organic polymer coargulator, and hydraulic detention time is 10 minutes.
The flocculation-air floating water outlet enters whizzer 4 and carries out centrifugation, and the solid waste centralized recovery that centrifugation produces is used for making slurries additive agent, and the water after the centrifugation is used for oil reservoir re-injection water.The oleaginousness of described oil reservoir re-injection water is less than 20mg/L, and suspended solid is less than 20mg/L, and pH value 6.5～7.5 satisfies oil reservoir re-injection water quality standard.
The main component of table 1 tar sand oil exploitation sewage
| Sewage/index | Oleaginousness (mg/L) | Suspended substance (mg/L) | pH |
| Tar sand oil exploitation sewage | 300～5000 | 0～1000 | 3～10 |
Embodiment 2
Have highly acid acidified waste water and at first enter homogeneous groove 1, the common alkali that adds 200～1000ppm is adjusted wastewater pH to 6.5～7.5, adds the quaternary ammonium salt emulsion splitter of 20～100ppm so that oil in water emulsion is converted into suspension oil, and working temperature is 30 ℃.Waste water behind the homogeneous was air-float degreasing device 2 interior hydraulic retentions 50 minutes, and working temperature is 30 ℃.Flocculation-air floating device 3 is advanced in the oil removal by air bubbling water outlet, adds respectively 30～80mg/L polymeric silicicacid Ferrite inorganic polymer flocculant and 3～20mg/L organic polymer coargulator, and hydraulic detention time is 10 minutes.
The flocculation-air floating water outlet enters horizontal screw centrifuge 4 and carries out centrifugation, and the solid waste centralized recovery that centrifugation produces is used for making slurries additive agent, and the water outlet after the processing is used for oil reservoir re-injection water.The oleaginousness of described oil reservoir re-injection water is less than 20mg/L, and suspended solid is less than 20mg/L, and pH value 6.5～7.5 satisfies oil reservoir re-injection water quality standard.
Have weakly alkaline waste liquid and at first enter homogeneous groove 1, the common acid that adds 50～500ppm is adjusted wastewater pH to 6.5～7.5, adds the quaternary ammonium salt emulsion splitter of 20～100ppm so that oil in water emulsion is converted into suspension oil, and working temperature is 10 ℃.Waste water behind the homogeneous was air-float degreasing device 2 interior hydraulic retentions 50 minutes, and working temperature is 20 ℃.Flocculation-air floating device 3 is advanced in the oil removal by air bubbling water outlet, adds respectively 30～80mg/L polymeric silicicacid Ferrite inorganic polymer flocculant and 3～20mg/L organic polymer coargulator, and hydraulic detention time is 5 minutes.The flocculation-air floating water outlet enters whizzer 4 centrifugations, and the solid waste centralized recovery that centrifugation produces is used for making slurries additive agent, and the water outlet after the centrifugation is as oil reservoir re-injection water.The oleaginousness of oil reservoir re-injection water is less than 20mg/L, and suspended solid is less than 20mg/L, and pH value 6.5～7.5 satisfies oil reservoir re-injection water quality standard.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. the treatment process of tar sand oil exploitation sewage may further comprise the steps:
A) tar sand oil is exploited sewage and carried out homogenization treatment in the homogeneous groove, the sewage after the homogenization treatment is entered air-float degreasing device carry out the oil removal by air bubbling processing, making the suspension the oil removal efficiency is 85wt%～95wt%, and the emulsification the oil removal efficiency is 5wt%～10wt%;
B) sewage that step a) is obtained enters the flocculation-air floating device and carries out the flocculation-air floating processing, separates throw out and flocculation-air floating sewage;
C) described flocculation-air floating sewage is carried out centrifugation, obtain oil reservoir re-injection water.
2. treatment process according to claim 1 is characterized in that, homogenization treatment is specially described in the step a):
Described tar sand oil exploitation sewage is entered the homogeneous groove, add emulsion splitter, and regulate described tar sand oil and exploit the pH to 6.5 of sewage～7.5.
3. treatment process according to claim 1 is characterized in that, the treatment time of described oil removal by air bubbling is 40～60min, and temperature is 5～60 ℃.
4. treatment process according to claim 1 is characterized in that, adds flocculation agent in the process that described flocculation-air floating is processed, and described flocculation agent is organic polymer coargulator and inorganic polymer flocculant.
5. treatment process according to claim 4 is characterized in that, described organic polymer coargulator is cationic polyacrylamide; Described inorganic polymer flocculant is polymerize aluminum chloride or polymeric silicicacid iron.
6. treatment process according to claim 4 is characterized in that, in the step b), take described sewage as base, the input amount of described organic polymer coargulator is 3～20mg/L, and the input amount of described inorganic polymer flocculant is 30～80mg/L.
7. the treatment system of a tar sand oil exploitation sewage comprises homogeneous groove, air-float degreasing device, flocculation-air floating device and whizzer; The outlet of described homogeneous groove is connected with the entrance of described air-float degreasing device, and the outlet of described air-float degreasing device is connected with the entrance of described flocculation-air floating device, and the outlet of described flocculation-air floating device is connected with the entrance of described whizzer.
8. treatment system according to claim 7 is characterized in that, described whizzer is horizontal screw centrifuge.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115611451A (en) * | 2022-10-10 | 2023-01-17 | 广东通朗环保科技股份有限公司 | Garbage wastewater treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2556357A1 (en) * | 2005-08-19 | 2007-02-19 | David C. Burt | Portable oil field waste water treatment and recycling system |
| US7517448B2 (en) * | 2005-07-28 | 2009-04-14 | Chen Tony C T | Recycling cool water filter |
| CN101591110A (en) * | 2008-05-29 | 2009-12-02 | 中国石油化工股份有限公司 | A kind of oil refining sewage treatment technology |
| CN102491553A (en) * | 2011-11-29 | 2012-06-13 | 成都晶宝科技有限公司 | Oilfield produced water treatment system and oilfield produced water treatment method |
-
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- 2013-07-31 CN CN201310329939.8A patent/CN103359861B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7517448B2 (en) * | 2005-07-28 | 2009-04-14 | Chen Tony C T | Recycling cool water filter |
| CA2556357A1 (en) * | 2005-08-19 | 2007-02-19 | David C. Burt | Portable oil field waste water treatment and recycling system |
| CN101591110A (en) * | 2008-05-29 | 2009-12-02 | 中国石油化工股份有限公司 | A kind of oil refining sewage treatment technology |
| CN102491553A (en) * | 2011-11-29 | 2012-06-13 | 成都晶宝科技有限公司 | Oilfield produced water treatment system and oilfield produced water treatment method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115611451A (en) * | 2022-10-10 | 2023-01-17 | 广东通朗环保科技股份有限公司 | Garbage wastewater treatment method |
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