CN109455887A - A kind of processing method and special processor of oil field binary water - Google Patents
A kind of processing method and special processor of oil field binary water Download PDFInfo
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- CN109455887A CN109455887A CN201811649565.7A CN201811649565A CN109455887A CN 109455887 A CN109455887 A CN 109455887A CN 201811649565 A CN201811649565 A CN 201811649565A CN 109455887 A CN109455887 A CN 109455887A
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- water
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- microorganism
- oil
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 244000005700 microbiome Species 0.000 claims abstract description 34
- 239000012528 membrane Substances 0.000 claims abstract description 6
- 239000010802 sludge Substances 0.000 claims abstract description 5
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 3
- 238000007781 pre-processing Methods 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 241000894006 Bacteria Species 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 239000002957 persistent organic pollutant Substances 0.000 claims description 5
- 241000589651 Zoogloea Species 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000005352 clarification Methods 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 241000588986 Alcaligenes Species 0.000 claims description 2
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 2
- 241000605716 Desulfovibrio Species 0.000 claims description 2
- 241000605909 Fusobacterium Species 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 239000004519 grease Substances 0.000 claims description 2
- 238000004900 laundering Methods 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 241000589516 Pseudomonas Species 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- -1 treated Substances 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000187654 Nocardia Species 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F3/344—Biological treatment of water, waste water, or sewage characterised by the microorganisms used for digestion of mineral oil
Abstract
The invention discloses a kind of oil field binary method for treating water, including removing the oil of the part in water removal and suspended matter with pre-processing device, it further degrades subsequently into microorganism reactor organic compound in water, treated, and water enters filter device, reduce the suspended matter in water, to reach injected purpose up to standard, filter device uses membrane technology.Meanwhile the invention also discloses the dedicated units of above-mentioned processing method.The present invention is cooperateed with jointly by each technique, by microorganism reactor and filter device use in conjunction, is reduced dosing technique and is also easy to produce secondary pollution problem caused by a large amount of sludge；The pollution level of film surface can be effectively relieved in the unique construction of dedicated unit of the present invention, extend the cleaning frequency.
Description
Technical field
The invention belongs to environment protection fields, are related to oil recovery treatment, and in particular to a kind of processing method of oil field binary water
And special processor.
Background technique
Oil field binary water technology China has developed for many years, and most area recovered water moisture content improves harvesting up to 90% or more
Rate has become the main problem of oil field concern.A large amount of surfactant, polymer, recovered water are added in oil recovery process in recent years
Apparent viscosity increases, and emulsion stability significantly improves, and causes three phase separator water-oil separating difficult.Meanwhile traditional sedimentation,
The water treatment technological process effect such as air bearing and flocculation deteriorates, and reuse aqueous suspension and oil content are exceeded, bring not to oil extraction
Benefit influences.Conventional processes are that level-one is aerated air bearing → second level aeration air bearing → by-pass filtration → secondary filtration at present.Technique
Complexity is not said, and does not have special equipment set to complete, and needs to lead to occupation area of equipment by covering equipment collaboration more
Greatly, working efficiency is low, does not meet environmentally protective requirement.
Summary of the invention
Goal of the invention: in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of processing of oil field binary water
Method.
Another object of the present invention is to provide the dedicated units of the processing method of above-mentioned oil field binary water.
Technical solution: in order to achieve the above object of the invention, what the present invention was specifically performed by: a kind of oil field binary water
Processing method, which comprises the following steps:
(1) oil field binary water is gone to the grease stain and suspended matter in water removal by pre-processing device；
(2) pretreated water body is entered into organic compound in microorganism reactor degradation water, in the microorganism reactor
Obligate bacterium, Facultative Halophiles and extreme microorganism including the obligate bacterium of oil removing, degradable organic pollutant, it is water that microorganism, which adds ratio,
The 0.03 ~ 0.05% of body volume, laundering period are 3 ~ 5 days, and hydraulic detention time is 10 hours or more in rear microorganism reactor, until
Microorganism reactor is discharged oil≤10 mg/L；
(3) by step (2), treated, and water body enters filter device, further decreases the suspended matter in water, until filtering water outlet oil
≤ 1 mg/L, SS≤1mg/L, when median particle size≤1 μm, are discharged re-injection.
Wherein, in the step (1) physical and chemical index of oil field binary water include: pH be 6 ~ 11, CODcr≤4000mg/L,
Oil≤250mg/L, SS≤500mg/L, polyacrylamide≤1000mg/L, surfactant≤1000 mg/L, salinity≤
150000 mg/L。
Wherein, the obligate bacterium of oil removing is made of Nocardia, Zoogloea or alcaligenes in the step (2).
Wherein, the obligate bacterium of degradable organic pollutant is made of Desulfovibrio, fusobacterium in the step (2).
Wherein, Facultative Halophiles and extreme microorganism are made of Alkaliphilic bacillus, Halophiles in the step (2).
Wherein, microorganism reactor is interior including aerobic zone, Wei Yangqu, anoxic zone and anaerobic zone in the step (2), described
Aerobic zone dissolved oxygen >=5mg/L, micro- aerobic zone dissolved oxygen≤3mg/L, the anoxic zone and anaerobic zone dissolved oxygen≤
0.3mg/L。
Wherein, the quantity of the effective microbe in the microorganism reactor is greater than 106cfu/mL。
The dedicated unit of the processing of above-mentioned oil field binary water, including pretreatment unit, pass through water pump and pretreatment unit phase
Water tank even, the microorganism reactor being connected by water pipe with water tank, with the filtering being connected at microorganism reactor water outlet
Device；The microorganism reactor includes the aerobic pond being connected by pipeline and anaerobic pond, and middle part is aerobic in the aerobic pond
Area, there is oxygen tank bottom to be anoxic zone, aerobic pond side wall is micro- aerobic zone, several layers microbe carrier is equipped in the aerobic zone,
The aerobic zone bottom connects the air compressor outside aerobic tank by tracheae, and defoaming pond is led in connection at the top of the aerobic zone
Pipeline, the aerobic zone side wall connects clarifying basin, and the anaerobism bottom of pond portion is equipped with mud discharging mouth；The clarifying basin by overflow into
Enter filter device, is equipped with hollow-fibre membrane inside the filter device.
Wherein, the defoaming pond is mainly used for removing a large amount of foams that microbial reaction pond generates.
Wherein, the intake chamber for being connected to aerobic tank is equipped with inside the clarifying basin, catch basin, the collection that intake chamber lower section is arranged
The sludge pipe that the inclined plate of setting, the overflow weir communicated with filter device, clarification bottom of pond portion are arranged below sink.
The utility model has the advantages that the present invention compared with traditional technology, has the advantage that
(1) present invention is cooperateed with jointly by each technique, by microorganism reactor and filter device use in conjunction, reduces dosing work
Skill is also easy to produce secondary pollution problem caused by a large amount of sludge；
(2) pollution level of film surface can be effectively relieved in the unique construction of dedicated unit of the present invention, extend the cleaning frequency；
(3) dedicated unit total residence time of the present invention is 16 ~ 20 hours, does not add any chemical agent, does not generate secondary dirt
Dye, it is ensured that " 5.1.1 " re-injection water quality standard, i.e. oil≤5mg/L, SS≤1mg/L, median particle size≤1 μm are arrived in processing water outlet；
(4) present invention process operating cost is low, occupied area is small, transformation and this hair especially suitable for existing materializing strategy technique
Bright technique creates.
Detailed description of the invention
Fig. 1 is dedicated unit structural schematic diagram of the present invention；
Fig. 2 is microorganism reactor structural schematic diagram of the present invention.
Specific embodiment
Embodiment 1:
Oil field binary water water water quality PH=8.38, CODcr=3586mg/L, oil=170mg/L, SS=451mg/L, surfactant=
609mg/L, polymer=596 mg/L, salinity=56987 mg/L, water temperature=35 DEG C；After the preprocessed device processing of water,
A part of oil slick is removed, oil content=89mg/L is directly entered microorganism reactor, which is 15-20 minutes；
The zoogloea of 0.03 ~ 0.05% volume of inoculation, aerobic by being separated into four regions-in reactor in microorganism reactor
Area, micro- aerobic zone, anoxic zone and anaerobic zone, aerobic zone by aeration, maintain Dissolved Oxygen in Water >=5mg/L, aerobic zoogloea into
The degradation of row high-performance bio, goes oil removing and persistent organic pollutants, and the hydraulic detention time in the region is 10 hours, bottom with
Anoxic zone is interconnected, and then entering by anoxic zone is micro- aerobic zone, controls anoxic zone dissolved oxygen in 0 ~ 0.3mg/L, micro- need
For oxygen area dissolved oxygen in ~ 3mg/L, microorganism water outlet enters clarification unit through micro- aerobic zone, so again overflow to filter device；It crosses
Hollow-fibre membrane is installed inside filter device, using PVDF material, membrane aperture is 10 ~ 100nm；Made by the filtering of filter device
With oil-containing is not measured in water outlet, and suspended matter is 0.8mg/ L, and median particle size is 0.95 μm, directly can be used for re-injection.
Embodiment 2:
As shown in Figure 1 and 2 includes pretreatment unit 1, and the water tank 3 being connected by water pump 2 with pretreatment unit 1 passes through water pipe
The microorganism reactor 4 being connected with water tank 3, with the filter device 5 being connected at 4 water outlet of microorganism reactor；The microorganism
Reactor 4 includes the aerobic pond 41 being connected by pipeline and anaerobic pond 42, and middle part is aerobic zone 411, has in the aerobic pond 41
41 bottom of oxygen pond is anoxic zone 412,41 side wall of aerobic pond is micro- aerobic zone 413, is equipped with the micro- life of several layers in the aerobic zone 411
Object carrier 414,411 bottom of aerobic zone connect the air compressor 6 outside aerobic tank 41, the aerobic zone by tracheae
The pipeline in defoaming pond 7 is led in 411 top connections, and 411 side wall of aerobic zone connects clarifying basin 8, and 42 bottom of anaerobic pond is set
There is mud discharging mouth 421；The clarifying basin 8 enters filter device 5 by overflow, is equipped with hollow-fibre membrane inside the filter device 5.
Embodiment 3:
Reference implementation example 2 is equipped with the intake chamber 81 for being connected to aerobic tank inside the clarifying basin 8, is arranged below intake chamber 81
The inclined plate 83 that is arranged below catch basin 82, catch basin 82, the overflow weir 84 communicated with filter device 5,8 bottom of clarifying basin setting
Sludge pipe 85.
Claims (9)
1. a kind of processing method of oil field binary water, which comprises the following steps:
(1) oil field binary water is gone to the grease stain and suspended matter in water removal by pre-processing device；
(2) pretreated water body is entered into organic compound in microorganism reactor degradation water, in the microorganism reactor
Obligate bacterium, Facultative Halophiles and extreme microorganism including the obligate bacterium of oil removing, degradable organic pollutant, it is water that microorganism, which adds ratio,
The 0.03 ~ 0.05% of body volume, laundering period are 3 ~ 5 days, and hydraulic detention time is 10 hours or more in rear microorganism reactor, until
Microorganism reactor is discharged oil≤10 mg/L；
(3) by step (2), treated, and water body enters filter device, further decreases the suspended matter in water, until filtering water outlet oil
≤ 1 mg/L, SS≤1mg/L, when median particle size≤1 μm, are discharged re-injection.
2. the processing method of oil field binary water according to claim 1, which is characterized in that the obligate bacterium of oil removing is by promise Cattell
Pseudomonas, Zoogloea or alcaligenes composition.
3. the processing method of oil field binary water according to claim 1, which is characterized in that the degradable organic pollutant it is special
Property bacterium is made of Desulfovibrio, fusobacterium.
4. the processing method of oil field binary water according to claim 1, which is characterized in that the Facultative Halophiles and extreme microorganism
It is made of Alkaliphilic bacillus, Halophiles.
5. the processing method of oil field binary water according to claim 1, which is characterized in that oil field binary in the step (1)
The physical and chemical index of water includes: that pH is 6 ~ 11, CODcr≤4000mg/L, oil≤250mg/L, SS≤500mg/L, polyacrylamide
Amine≤1000mg/L, surfactant≤1000 mg/L, salinity≤150000 mg/L.
6. the processing method of oil field binary water according to claim 1, which is characterized in that microorganism is anti-in the step (2)
Answering includes aerobic zone, Wei Yangqu, anoxic zone and anaerobic zone in device, the aerobic zone dissolved oxygen >=5mg/L, and micro- aerobic zone is molten
Solve oxygen≤3mg/L, the anoxic zone and anaerobic zone dissolved oxygen≤0.3mg/L.
7. the processing method of oil field binary water according to claim 1, which is characterized in that having in the microorganism reactor
The quantity for imitating microorganism is greater than 106cfu/mL。
8. the dedicated unit of the processing of any oil field binary water of claim 1 ~ 7, which is characterized in that filled including pretreatment
It sets, the water tank being connected by water pump with pretreatment unit, the microorganism reactor being connected by water pipe with water tank, with micro- life
The filter device being connected at object reactor water outlet；The microorganism reactor includes the aerobic pond being connected by pipeline and anaerobism
Pond, in the aerobic pond middle part be aerobic zone, there is oxygen tank bottom to be anoxic zone, aerobic pond side wall is micro- aerobic zone, described aerobic
Several layers microbe carrier is equipped in area, the aerobic zone bottom connects the air compressor outside aerobic tank, institute by tracheae
The pipeline that defoaming pond is led in connection at the top of aerobic zone is stated, the aerobic zone side wall connects clarifying basin, and the anaerobism bottom of pond portion is equipped with
Mud discharging mouth；The clarifying basin enters filter device by overflow, is equipped with hollow-fibre membrane inside the filter device.
9. the dedicated unit of the processing of oil field binary water according to claim 8, which is characterized in that set inside the clarifying basin
The inclined plate and filter device of the catch basin, the setting of catch basin lower section that there is the intake chamber for being connected to aerobic tank, intake chamber lower section to be arranged
The sludge pipe of the overflow weir, clarification bottom of pond portion setting that communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649565.7A CN109455887A (en) | 2018-12-30 | 2018-12-30 | A kind of processing method and special processor of oil field binary water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649565.7A CN109455887A (en) | 2018-12-30 | 2018-12-30 | A kind of processing method and special processor of oil field binary water |
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| Publication Number | Publication Date |
|---|---|
| CN109455887A true CN109455887A (en) | 2019-03-12 |
Family
ID=65616001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811649565.7A Pending CN109455887A (en) | 2018-12-30 | 2018-12-30 | A kind of processing method and special processor of oil field binary water |
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|---|---|---|---|---|
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-
2018
- 2018-12-30 CN CN201811649565.7A patent/CN109455887A/en active Pending
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