CN110862201A - Gas field water treatment system - Google Patents
Gas field water treatment system Download PDFInfo
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- CN110862201A CN110862201A CN201911403077.2A CN201911403077A CN110862201A CN 110862201 A CN110862201 A CN 110862201A CN 201911403077 A CN201911403077 A CN 201911403077A CN 110862201 A CN110862201 A CN 110862201A
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- 239000003672 gas field water Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 145
- 238000006243 chemical reaction Methods 0.000 claims abstract description 63
- 230000000813 microbial effect Effects 0.000 claims abstract description 30
- 239000012528 membrane Substances 0.000 claims abstract description 29
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 238000005191 phase separation Methods 0.000 claims abstract description 18
- 244000005700 microbiome Species 0.000 claims description 34
- 239000002893 slag Substances 0.000 claims description 23
- 238000007664 blowing Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 7
- 238000005273 aeration Methods 0.000 claims description 6
- 238000005374 membrane filtration Methods 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 4
- 239000002920 hazardous waste Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 50
- 235000019198 oils Nutrition 0.000 description 49
- 239000011499 joint compound Substances 0.000 description 11
- 239000010865 sewage Substances 0.000 description 9
- 239000010802 sludge Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000588986 Alcaligenes Species 0.000 description 1
- 244000063299 Bacillus subtilis Species 0.000 description 1
- 235000014469 Bacillus subtilis Nutrition 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000187654 Nocardia Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
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- 230000000593 degrading effect Effects 0.000 description 1
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- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
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- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
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- 150000003568 thioethers Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/04—Oxidation reduction potential [ORP]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1278—Provisions for mixing or aeration of the mixed liquor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a gas field water treatment system, which comprises an oil, mud and water three-phase separation device, a microbial reaction tank, a tubular membrane filtering device and a water outlet tank, wherein a water outlet of the oil, mud and water three-phase separation device is communicated with a water inlet of the microbial reaction tank through an intermediate pipeline, and a water outlet of the microbial reaction tank is communicated with the tubular membrane filtering device through a water outlet pipeline; the concentrated water outlet of the tubular membrane filtering device is communicated with the microbial reaction tank through a concentrated water pipeline, a concentrated water branch pipe is arranged on the concentrated water pipeline, the concentrated water branch pipe and the water outlet pipeline are communicated to form a tubular membrane filtering device return pipeline, and the clear water outlet of the tubular membrane filtering device is communicated with the water outlet tank through a clear water pipeline. The system of the invention saves the traditional filter, does not need to replace filter materials and solves the problem of hazardous waste treatment, the device system does not need to add chemicals, the water quality is not modified, and the effluent quality is stable and is superior to the gas field water reinjection standard.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to a gas field water treatment system.
Background
In the basin containing oil and gas, the water-bearing rock system is subjected to geological development changes such as deposition, shallow burying, deep burying, deterioration, leaching and the like, so that active ion exchange action is generated among oil, water and gas, the chemical property of reservoir water is changed, and new water quality containing special chemical components is formed. It has high salt content, and its mineralization is several tens thousands to hundreds thousands mg/L, some as high as over million mg/L. The water contains potassium, sodium, calcium, magnesium and other ions, iodine, boron and other ions. Besides, the oil-water mixture also contains a large amount of suspended substances, oil, sulfides, oil field chemical additives and other organic matters. Such as drilling fluids, fracturing fluids, etc. that penetrate the formation during drilling, and may also include corrosive materials, such as those resulting from corrosion of pipes, equipment, etc. Therefore, before entering the reinjection well, impurities in the formation water need to be cleaned so as to keep the reinjection well unblocked and ensure reinjection performance.
Disclosure of Invention
The invention aims to provide a gas field water treatment system.
The system provided by the invention has the innovation points that the traditional filter is omitted, the filter material is not replaced, the problem of hazardous waste treatment is solved, the device system does not need to add chemicals, the water quality is not modified, and the effluent quality is stable and is superior to the gas field water reinjection standard.
In order to achieve the purpose, the technical scheme of the invention is as follows: a gas field water treatment system comprises an oil, mud and water three-phase separation device, a microbial reaction tank, a tubular membrane filtration device and a water outlet tank; the oil, mud and water three-phase separation device comprises a cylinder body, wherein three layers of inner cylinder bodies are arranged in the cylinder body, namely a first inner cylinder body, a second inner cylinder body and a third inner cylinder body from outside to inside; the bottom of the first inner cylinder, the bottom of the second inner cylinder and the bottom of the third inner cylinder are all conical and have openings at the bottoms; the outer wall of the upper part of the third inner cylinder body is wrapped with a fourth inner cylinder body, the first inner cylinder body and the second inner cylinder body share the top wall and the first inner cylinder body, the top of the second inner cylinder is higher than the top of the third inner cylinder and lower than the top of the fourth inner cylinder, the bottom of the fourth inner cylinder is higher than the bottom of the third inner cylinder and is fixedly connected to the outer wall of the third inner cylinder, a support rod is welded to the top of the fourth inner cylinder, a support shaft is connected to the support rod and is located in the center of the cylinder, two conical hoppers are arranged on the support shaft, a circle of annular guide plate which is bent inwards is arranged on the top edge of each conical hopper, the annular guide plate is arranged in an inclined mode, the joint of the annular guide plate and the conical hoppers is a low point, the two conical hoppers are divided into an upper conical hopper and a lower conical hopper, the bottom of the lower conical hopper is slightly higher than the bottom of the first inner cylinder, an insertion pipe inserted into the lower conical hopper is arranged at; the inner wall of the first inner cylinder body is provided with two circles of baffles which are divided into an upper baffle and a lower baffle, the upper baffle is slightly higher than the upper conical hopper, the lower baffle is slightly higher than the lower conical hopper, the inner diameter of the upper baffle is smaller than the maximum diameter of the upper conical hopper and slightly larger than the inner diameter of an annular guide plate of the upper conical hopper, and the inner diameter of the lower baffle is smaller than the maximum diameter of the lower conical hopper and slightly larger than the inner diameter of the annular guide plate of the upper conical hopper; the side wall of the barrel is provided with a water inlet, a water outlet and an oil outlet, the highest point of the water inlet is higher than the top height of the first inner barrel, the lowest point of the water inlet is lower than the top height of the first inner barrel, the water outlet and the oil outlet are slightly lower than the water inlet, the side wall of the bottom of the barrel is provided with a slag discharge port, the side wall of the fourth inner barrel is provided with an inner water outlet, the side wall of the second inner barrel is provided with an inner oil discharge port, the height of the inner oil discharge port is higher than that of the upper baffle, a water discharge pipe penetrates through the first inner barrel and the second inner barrel to communicate the water outlet with the inner water discharge port, an oil discharge pipe penetrates through the first inner barrel to communicate the oil discharge port with the inner oil discharge port, the water discharge pipe and the oil discharge pipe are both fixed on the; a partition plate is arranged in the second inner cylinder body to divide the interior of the second inner cylinder body into two cavities, namely a first cavity and a second cavity, the first cavity is communicated with the inner oil discharge port, a first through hole is formed in the side wall of the upper portion of the second inner cylinder body and communicated with the first cavity, a second through hole is formed in the top wall of the second inner cylinder body and communicated with the first cavity, and a third through hole is formed in the wall body of the partition plate and communicated with the first cavity and the second cavity; the water outlet of the microbial reaction tank is communicated with the tubular membrane filtering device through a water outlet pipeline; the concentrated water outlet of the tubular membrane filtering device is communicated with the microbial reaction tank through a concentrated water pipeline, a concentrated water branch pipe is arranged on the concentrated water pipeline, the concentrated water branch pipe and the water outlet pipeline are communicated to form a tubular membrane filtering device return pipeline, and the clear water outlet of the tubular membrane filtering device is communicated with the water outlet tank through a clear water pipeline.
Furthermore, the microbial reaction tank is internally provided with a partition plate which divides the microbial reaction tank into a facultative zone, a first-stage aerobic microbial reaction zone, a second-stage aerobic microbial reaction zone and a third-stage aerobic microbial reaction zone in sequence; the separator is provided with a water outlet which sequentially communicates the facultative zone, the first-stage aerobic microorganism reaction zone, the second-stage aerobic microorganism reaction zone and the third-stage aerobic microorganism reaction zone, the water inlet of the microorganism reaction tank is positioned at the facultative zone, the water outlet of the microorganism reaction tank is positioned at the third-stage aerobic microorganism reaction zone, and the concentrated water outlet of the tubular membrane filter device is communicated with the first-stage aerobic microorganism reaction zone of the microorganism reaction tank through a concentrated water pipeline.
Further, a stirring device in the facultative zone. The inlet water is fully mixed, and the over-high impact load is avoided.
And further, aeration devices are arranged in the first-stage aerobic microorganism reaction zone, the second-stage aerobic microorganism reaction zone and the third-stage aerobic microorganism reaction zone, and the aeration devices are anti-clogging membrane aerators.
Further, the tubular membrane filtration device is an external MBR membrane. The blockage is not easy to happen, and the cleaning frequency is low.
Furthermore, a supporting shaft in the oil, mud and water three-phase separation device is a threaded rod, nuts used for being screwed on the supporting shaft are arranged at the bottoms of the upper conical hopper and the lower conical hopper, and the supporting bars are screwed on the supporting shaft.
Furthermore, a slag blowing port is further arranged at the bottom of the cylinder body in the oil, mud and water three-phase separation device and is communicated with the bottom of the conical cylinder through a slag blowing pipe. The slag blowing opening is in a normally closed state and is mainly used for pressurizing and cleaning sludge when the slag discharging pipe is blocked.
Furthermore, the diameter of a slag blowing pipe in the oil, mud and water three-phase separation device is smaller than that of a slag discharging pipe.
Furthermore, a sealing cover is arranged at the top of the third inner cylinder body, and the sealing cover is screwed with the support shaft through threads. The sealing cover is rotated, and the water yield can be adjusted by adjusting the distance between the sealing cover and the top of the third inner cylinder body, so that the aim of controlling the water content in the oil discharged from the oil discharge pipe is fulfilled.
Furthermore, an oxidation-reduction potentiometer is arranged in the facultative area.
The invention has the beneficial effects that:
1. the invention saves the traditional filter, does not need to replace filter materials and solves the problem of hazardous waste treatment, the device system does not need to add chemicals, the water quality is not modified, and the effluent quality is stable and is superior to the gas field water reinjection standard.
2. The oil, mud and water three-phase separation device realizes multi-layer multi-stage separation in a limited space, greatly improves the effluent quality and reduces the difficulty of the subsequent water treatment process. The water content of the produced oil is low, so that favorable conditions are provided for the subsequent recovery and utilization of crude oil, and the resource waste is reduced; and the internal structure is compact, and the occupied area is small. The all-static oil-water separation process has no movable component, needs no power device, saves energy, and has low investment and operation cost.
3. The invention has low operation energy consumption and less sludge discharge.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of an oil, mud and water three-phase separation device;
fig. 3 is a schematic structural diagram of another angle of the oil, mud and water three-phase separation device.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1: as shown in fig. 1, 2 and 3, the gas field water treatment system comprises an oil, mud and water three-phase separation device a, a microbial reaction tank b, a tubular membrane filtration device c and a water outlet tank d; the tubular membrane filtration device c is an external MBR membrane. The oil, mud and water three-phase separation device a comprises a cylinder body 1, wherein three layers of inner cylinder bodies, namely a first inner cylinder body 2, a second inner cylinder body 3 and a third inner cylinder body 4, are arranged in the cylinder body 1 from outside to inside; the bottom of the first inner cylinder body 2, the bottom of the second inner cylinder body 3 and the bottom of the third inner cylinder body 4 are all conical and have openings at the bottoms; the outer wall of the upper part of the third inner cylinder body 4 is wrapped with a fourth inner cylinder body 5, the first inner cylinder body 2 and the second inner cylinder body 3 share the top wall, the top height of the first inner cylinder body 2 and the second inner cylinder body 3 is higher than the top height of the third inner cylinder body 4 and lower than the top height of the fourth inner cylinder body 5, the bottom of the fourth inner cylinder body 5 is higher than the bottom of the third inner cylinder body 4 and is fixedly connected with the outer wall of the third inner cylinder body 4, a support rod 6 is welded at the top of the fourth inner cylinder body 5, a support shaft 7 is connected on the support rod 6 and is positioned at the center of the cylinder body 1, two conical hoppers 8 are arranged on the support shaft 7, the top edge of each conical hopper 8 is provided with a circle of annular guide plate 9 which is bent inwards, the annular guide plate 9 is obliquely arranged, the joint of the annular guide plate 9 and the conical hoppers 8 is a low point, the two conical hoppers 8 are divided into an upper conical hopper and a lower conical hopper, the bottom of the, the bottom of the third inner cylinder body 4 is inserted into an upper conical hopper; the inner wall of the first inner cylinder body 2 is provided with two rings of baffles 11 which are divided into an upper baffle and a lower baffle, the height of the upper baffle is slightly higher than that of the upper conical hopper, the height of the lower baffle is slightly higher than that of the lower conical hopper, the inner diameter of the upper baffle is smaller than the maximum diameter of the upper conical hopper and slightly larger than the inner diameter of the annular guide plate 9 of the upper conical hopper, and the inner diameter of the lower baffle is smaller than the maximum diameter of the lower conical hopper and slightly larger than the inner diameter of the annular guide plate 9 of the; the side wall of the barrel body 1 is provided with a water inlet 12, a water outlet 13 and an oil discharge port 14, the highest point of the water inlet 12 is higher than the top height of the first inner barrel body 1, the lowest point of the water inlet 12 is lower than the top height of the first inner barrel body 1, the water outlet 12 and the oil discharge port 14 are slightly lower than the water inlet 12, the side wall of the bottom of the barrel body 1 is provided with a slag discharge port 15, the side wall of the fourth inner barrel body 5 is provided with an inner water discharge port 16, the side wall of the second inner barrel body 3 is provided with an inner oil discharge port 17, the height of the inner oil discharge port 17 is higher than the height of the upper baffle plate, the water discharge pipe 18 penetrates through the first inner barrel body 2 and the second inner barrel body 3 to communicate the water outlet 13 with the inner water discharge port 16, the oil discharge pipe 19 penetrates through the first inner barrel body 2 to communicate the oil discharge port 14 with the inner oil discharge port 17, the water, the supporting bar 20 is connected to the supporting shaft 7, the third inner cylinder 4 is connected with the supporting shaft 7 through the supporting bar 20, the top of the third inner cylinder 4 is provided with a sealing cover 32, and the sealing cover 32 is screwed with the supporting shaft 7; be equipped with division board 21 in barrel 3 in No. two and become two cavities with barrel 3 internal partitioning in No. two and be cavity 22 and No. two cavities 23 respectively, cavity 22 and interior oil discharge port 17 intercommunication, barrel 3 upper portion lateral wall is equipped with a through-hole 24 and cavity 22 intercommunication in No. two, barrel 3 roof is equipped with No. two through-holes 25 and cavity 22 intercommunication in No. two, is equipped with No. three through-holes 26 on the division board 21 wall body and communicates cavity 22 and No. two cavities 23. The supporting shaft 7 is a threaded rod, the bottoms of the upper conical hopper and the lower conical hopper are respectively provided with a nut 27 which is screwed on the supporting shaft, and the supporting bar 20 is screwed on the supporting shaft 7. The bottom of the barrel body 1 is provided with a conical barrel 28, the slag discharge port 15 is communicated with the bottom of the conical barrel 28 through a slag discharge pipe 29, the bottom of the barrel body 1 is also provided with a slag blowing port 30, the slag blowing port 30 is communicated with the bottom of the conical barrel 28 through a slag blowing pipe 31, and the diameter of the slag blowing pipe 31 is smaller than that of the slag discharge pipe 29. A water outlet of the oil, mud and water three-phase separation device a is communicated with a water inlet 34 of the microbial reaction tank b through an intermediate pipeline 33, and a water outlet 35 of the microbial reaction tank b is communicated with the tubular membrane filtration device c through a water outlet pipeline 36; the concentrated water outlet 37 of the tubular membrane filtering device c is communicated with the microorganism reaction tank b through a concentrated water pipeline 38, a concentrated water branch pipe 39 is arranged on the concentrated water pipeline 38, the concentrated water branch pipe 39 is communicated with the water outlet pipeline 36 to form a return pipeline of the tubular membrane filtering device, and the clear water outlet 40 of the tubular membrane filtering device c is communicated with the water outlet tank d through a clear water pipeline 41. The inside of the microbial reaction tank b is provided with a partition plate which divides the microbial reaction tank b into a facultative zone 42, a first-stage aerobic microbial reaction zone 43, a second-stage aerobic microbial reaction zone 44 and a third-stage aerobic microbial reaction zone 45 in sequence; the division plate is provided with a water passing opening for sequentially communicating the facultative zone 42, the first-stage aerobic microorganism reaction zone 43, the second-stage aerobic microorganism reaction zone 44 and the third-stage aerobic microorganism reaction zone 45 are respectively provided with an aeration device 46, the aeration device 46 is an anti-clogging membrane aerator, the water inlet 35 of the microorganism reaction tank b is positioned at the facultative zone 42, the water outlet 35 of the microorganism reaction tank b is positioned at the third-stage aerobic microorganism reaction zone 45, a stirring device is arranged in the facultative zone 42, and the facultative zone is internally provided with a redox potential instrument. The concentrated water outlet 37 of the tubular membrane filtering device c is communicated with the primary aerobic microorganism reaction zone 44 of the microorganism reaction tank b through a concentrated water pipeline 38.
The working principle is as follows: when the device works, sewage is pumped from the water inlet 12, enters the first inner cylinder 2 from the bottom through the annular area between the cylinder 1 and the first inner cylinder 2, after the sewage enters the first inner cylinder 2, media with different densities are gradually separated under the action of gravity, fine oil drops are separated at the lower part of the first inner cylinder 2 due to the difference of gravity and density and are gathered and attached to the outer wall surface of the lower conical hopper, the oil drops continuously rise due to the density of the oil drops being smaller than that of a mixture, and the rising direction of the oil drops is changed due to the action of the annular guide plate 9 on the lower conical hopper and slowly rises along the outer wall surface of the second inner cylinder 3; part of oil drops attached to the inner wall surface of the first inner cylinder 2 also slowly rise along the outer wall surface of the second inner cylinder 3 under the action of the lower baffle 11, enter the first cavity 22 from the first through hole 24 after rising, and are finally discharged from the oil discharge pipe 19. In the sewage rising process, the sewage is blocked by the lower baffle, most of the sludge falls back to the bottom of the cylinder 1 under the action of gravity because the density of the sludge is greater than that of water, and most of other fine sludge particles fall to the bottom of the cylinder 1 or the lower conical hopper under the combined action of the annular guide plate 9 of the lower conical hopper and the lower baffle. Part of extremely fine oil drops and particles can continuously flow into the insertion pipe 10 along with sewage flow, the oil drops and the particles pass through the long and narrow channel until meeting the influence of gravity on the annular guide plate 9 and the upper baffle plate of the upper conical hopper, and the oil drops continuously go upwards and enter the first cavity 22 through the third through hole 26 according to the difference of density, and finally are discharged from the oil discharge pipe 19. The particles are retained and fall into the upper conical hopper. In barrel 4 in continuing the entering No. three of sewage after the deoiling, deposiing, under hydraulic effect, from barrel 4 top overflow in No. three get into barrel 5 in No. four, discharge from the interior drain outlet 16 discharge drain pipe 18 of barrel 5 department in No. four again, the water yield can be adjusted through the distance of adjusting the top of barrel 4 in closing cap 32 and No. three to rotating closing cap 32, reaches the purpose of the water content in the control oil drain pipe oil extraction. Oil between the first inner cylinder 2 and the first inner cylinder 1 can also enter the first cavity 22 from the second through hole 25 and finally is discharged from the oil discharge pipe 19. The slag blowing opening 30 is in a normally closed state and is mainly used for pressurizing and cleaning sludge when the slag discharge pipe 29 is blocked.
The water discharged from the water discharge pipe 18 enters the microbial reaction tank b and firstly enters the facultative zone 42, and the facultative zone 42 mainly aims to further intercept and gradually convert non-dissolved substances into dissolved substances, convert nonbiodegradable substances into biodegradable substances and improve the biodegradability of the wastewater. Controlling the oxidation-reduction potential of the facultative zone 42 at 0mV, the retention time at 4-6 h, and the water ratio of the first-level aerobic microorganism reaction zone 43, the second-level aerobic microorganism reaction zone 44 and the third-level aerobic microorganism reaction zone 45 to be (15-20): 1; the added strains mainly comprise Nocardia, pseudomonas, bacillus subtilis and Alcaligenes. The flora takes organic pollutants in the sewage as a nutrient source, converts complex organic matters into simple inorganic matters through self oxidation, reduction and synthesis, thereby degrading the organic matters and oils in the sewage and achieving the aim of purifying the sewage, the purified water is pressurized by a lift pump and sent into a tubular membrane filtering device c, the permeation effluent of the tubular membrane filtering device c is collected to a water outlet tank d, part of concentrated water flows back to a primary aerobic microorganism reaction zone 43 through a concentrated water pipeline 38 to ensure the concentration of special microorganisms in the microorganism reaction tank, and part of concentrated water flows to the inlet of the lift pump through a concentrated water branch pipe 39 to ensure the cross flow velocity of 1-2m/s in the tubular membrane filtering device c.
The described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (10)
1. A gas field water treatment system is characterized by comprising an oil, mud and water three-phase separation device, a microbial reaction tank, a tubular membrane filtering device and a water outlet tank; the oil, mud and water three-phase separation device comprises a cylinder body, wherein three layers of inner cylinder bodies are arranged in the cylinder body, namely a first inner cylinder body, a second inner cylinder body and a third inner cylinder body from outside to inside; the bottom of the first inner cylinder, the bottom of the second inner cylinder and the bottom of the third inner cylinder are all conical and have openings at the bottoms; the outer wall of the upper part of the third inner cylinder body is wrapped with a fourth inner cylinder body, the first inner cylinder body and the second inner cylinder body share the top wall and the first inner cylinder body, the top of the second inner cylinder is higher than the top of the third inner cylinder and lower than the top of the fourth inner cylinder, the bottom of the fourth inner cylinder is higher than the bottom of the third inner cylinder and is fixedly connected to the outer wall of the third inner cylinder, a support rod is welded to the top of the fourth inner cylinder, a support shaft is connected to the support rod and is located in the center of the cylinder, two conical hoppers are arranged on the support shaft, a circle of annular guide plate which is bent inwards is arranged on the top edge of each conical hopper, the annular guide plate is arranged in an inclined mode, the joint of the annular guide plate and the conical hoppers is a low point, the two conical hoppers are divided into an upper conical hopper and a lower conical hopper, the bottom of the lower conical hopper is slightly higher than the bottom of the first inner cylinder, an insertion pipe inserted into the lower conical hopper is arranged at; the inner wall of the first inner cylinder body is provided with two circles of baffles which are divided into an upper baffle and a lower baffle, the upper baffle is slightly higher than the upper conical hopper, the lower baffle is slightly higher than the lower conical hopper, the inner diameter of the upper baffle is smaller than the maximum diameter of the upper conical hopper and slightly larger than the inner diameter of an annular guide plate of the upper conical hopper, and the inner diameter of the lower baffle is smaller than the maximum diameter of the lower conical hopper and slightly larger than the inner diameter of the annular guide plate of the upper conical hopper; the side wall of the barrel is provided with a water inlet, a water outlet and an oil outlet, the highest point of the water inlet is higher than the top height of the first inner barrel, the lowest point of the water inlet is lower than the top height of the first inner barrel, the water outlet and the oil outlet are slightly lower than the water inlet, the side wall of the bottom of the barrel is provided with a slag discharge port, the side wall of the fourth inner barrel is provided with an inner water outlet, the side wall of the second inner barrel is provided with an inner oil discharge port, the height of the inner oil discharge port is higher than that of the upper baffle, a water discharge pipe penetrates through the first inner barrel and the second inner barrel to communicate the water outlet with the inner water discharge port, an oil discharge pipe penetrates through the first inner barrel to communicate the oil discharge port with the inner oil discharge port, the water discharge pipe and the oil discharge pipe are both fixed on the; a partition plate is arranged in the second inner cylinder body to divide the interior of the second inner cylinder body into two cavities, namely a first cavity and a second cavity, the first cavity is communicated with the inner oil discharge port, a first through hole is formed in the side wall of the upper portion of the second inner cylinder body and communicated with the first cavity, a second through hole is formed in the top wall of the second inner cylinder body and communicated with the first cavity, and a third through hole is formed in the wall body of the partition plate and communicated with the first cavity and the second cavity; the water outlet of the microbial reaction tank is communicated with the tubular membrane filtering device through a water outlet pipeline; the concentrated water outlet of the tubular membrane filtering device is communicated with the microbial reaction tank through a concentrated water pipeline, a concentrated water branch pipe is arranged on the concentrated water pipeline, the concentrated water branch pipe and the water outlet pipeline are communicated to form a tubular membrane filtering device return pipeline, and the clear water outlet of the tubular membrane filtering device is communicated with the water outlet tank through a clear water pipeline.
2. The gas field water treatment system according to claim 1, wherein a partition plate is arranged in the microbial reaction tank to divide the microbial reaction tank into a facultative zone, a primary aerobic microbial reaction zone, a secondary aerobic microbial reaction zone and a tertiary aerobic microbial reaction zone in sequence; the separator is provided with a water outlet which sequentially communicates the facultative zone, the first-stage aerobic microorganism reaction zone, the second-stage aerobic microorganism reaction zone and the third-stage aerobic microorganism reaction zone, the water inlet of the microorganism reaction tank is positioned at the facultative zone, the water outlet of the microorganism reaction tank is positioned at the third-stage aerobic microorganism reaction zone, and the concentrated water outlet of the tubular membrane filter device is communicated with the first-stage aerobic microorganism reaction zone of the microorganism reaction tank through a concentrated water pipeline.
3. The gas field water treatment system of claim 1, wherein said facultative zone internal stirring device.
4. The gas field water treatment system of claim 1, wherein aeration devices are provided in the primary, secondary and tertiary aerobic microbial reaction zones, the aeration devices being anti-clogging membrane aerators.
5. The gas field water treatment system of claim 1, wherein the tubular membrane filtration device is an external MBR membrane.
6. The gas field water treatment system according to claim 1, wherein the supporting shaft in the oil, mud and water three-phase separation device is a threaded rod, the bottoms of the upper conical hopper and the lower conical hopper are respectively provided with a nut for screwing on the supporting shaft, and the supporting bar is screwed on the supporting shaft.
7. The gas field water treatment system according to claim 1, wherein a slag blowing port is further formed in the bottom of the cylinder body in the oil, mud and water three-phase separation device, and the slag blowing port is communicated with the bottom of the conical cylinder through a slag blowing pipe.
8. The gas field water treatment system according to claim 7, wherein the diameter of the slag blowing pipe in the oil, mud and water three-phase separation device is smaller than the diameter of the slag discharging pipe.
9. The gas field water treatment system according to claim 1, wherein a sealing cover is arranged at the top of the third inner cylinder body, and the sealing cover is screwed with the supporting shaft.
10. The gas field water treatment system of claim 2, wherein a redox potentiometer is provided in said facultative zone.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003000377A1 (en) * | 2001-03-21 | 2003-01-03 | Mantis Oil Separation Limited | Separation of oil and water |
| CN2597470Y (en) * | 2003-01-18 | 2004-01-07 | 王娅娜 | Equipment for treating water extracted from oil field |
| AU2002308442B2 (en) * | 2001-05-31 | 2004-04-08 | World Max Alliance Limited | Method for removing oil, fat and grease from water |
| CN103086574A (en) * | 2013-02-27 | 2013-05-08 | 青岛理工大学 | Waste water treatment equipment for processing aquatic product |
| CN103693803A (en) * | 2013-09-23 | 2014-04-02 | 江苏博大环保股份有限公司 | Treatment method of oil field re-injection produced water and system thereof |
| US20150034570A1 (en) * | 2012-04-04 | 2015-02-05 | Tea Sistemi S.P.A. | Separator apparatus for gas-water-oil mixtures, and separation process |
| CN105236657A (en) * | 2015-10-23 | 2016-01-13 | 格林奥斯环境技术(北京)有限公司 | Oil well acidification flowback liquid treating technology and device for offshore oil field |
| CA2917959A1 (en) * | 2015-10-30 | 2017-04-30 | Xinjiang Petroleum Engineering Co., Ltd. | Settling oil removal tank, system and method for produced water treatment |
| CN106746364A (en) * | 2017-02-15 | 2017-05-31 | 青岛蓝谷化学有限公司 | A kind of oil field extracted water resource utilization method and its device |
| CN108640334A (en) * | 2018-04-28 | 2018-10-12 | 延长油田股份有限公司 | Three sections of high efficiency composition processing systems of oily wastewater and treatment process |
| WO2018201304A1 (en) * | 2017-05-02 | 2018-11-08 | 东莞源控环保科技有限公司 | Wastewater treatment system and method for effective volume reduction of organic sludge |
| CN109279742A (en) * | 2018-11-29 | 2019-01-29 | 湖北忠和冶金机械制造股份有限公司 | A kind of energy-efficient integrated produced water treatment device |
| CN211921213U (en) * | 2019-12-31 | 2020-11-13 | 江苏博大环保股份有限公司 | Gas field water treatment system |
-
2019
- 2019-12-31 CN CN201911403077.2A patent/CN110862201B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003000377A1 (en) * | 2001-03-21 | 2003-01-03 | Mantis Oil Separation Limited | Separation of oil and water |
| AU2002308442B2 (en) * | 2001-05-31 | 2004-04-08 | World Max Alliance Limited | Method for removing oil, fat and grease from water |
| CN2597470Y (en) * | 2003-01-18 | 2004-01-07 | 王娅娜 | Equipment for treating water extracted from oil field |
| US20150034570A1 (en) * | 2012-04-04 | 2015-02-05 | Tea Sistemi S.P.A. | Separator apparatus for gas-water-oil mixtures, and separation process |
| CN103086574A (en) * | 2013-02-27 | 2013-05-08 | 青岛理工大学 | Waste water treatment equipment for processing aquatic product |
| CN103693803A (en) * | 2013-09-23 | 2014-04-02 | 江苏博大环保股份有限公司 | Treatment method of oil field re-injection produced water and system thereof |
| CN105236657A (en) * | 2015-10-23 | 2016-01-13 | 格林奥斯环境技术(北京)有限公司 | Oil well acidification flowback liquid treating technology and device for offshore oil field |
| CA2917959A1 (en) * | 2015-10-30 | 2017-04-30 | Xinjiang Petroleum Engineering Co., Ltd. | Settling oil removal tank, system and method for produced water treatment |
| CN106746364A (en) * | 2017-02-15 | 2017-05-31 | 青岛蓝谷化学有限公司 | A kind of oil field extracted water resource utilization method and its device |
| WO2018201304A1 (en) * | 2017-05-02 | 2018-11-08 | 东莞源控环保科技有限公司 | Wastewater treatment system and method for effective volume reduction of organic sludge |
| CN108640334A (en) * | 2018-04-28 | 2018-10-12 | 延长油田股份有限公司 | Three sections of high efficiency composition processing systems of oily wastewater and treatment process |
| CN109279742A (en) * | 2018-11-29 | 2019-01-29 | 湖北忠和冶金机械制造股份有限公司 | A kind of energy-efficient integrated produced water treatment device |
| CN211921213U (en) * | 2019-12-31 | 2020-11-13 | 江苏博大环保股份有限公司 | Gas field water treatment system |
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