CN108821528A - A kind of micro-organism treatment process and processing system of Oilfield Oil-Contained Silt - Google Patents
A kind of micro-organism treatment process and processing system of Oilfield Oil-Contained Silt Download PDFInfo
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- CN108821528A CN108821528A CN201810752919.4A CN201810752919A CN108821528A CN 108821528 A CN108821528 A CN 108821528A CN 201810752919 A CN201810752919 A CN 201810752919A CN 108821528 A CN108821528 A CN 108821528A
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Activated Sludge Processes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention belongs to oil field environment-protection technical fields, are related to the micro-organism treatment process and processing system of a kind of Oilfield Oil-Contained Silt.Pass through equal quality detection, oil slick recycling, sewage discharge, microbial degradation, dehydration, seven steps of oil sludge and sand qualified discharge and sewage purification and purification water circulation use, and including feed device, microbial treatment device, dehydration device, sewage-treatment plant, filter device, water storage device, circulating pump, type petroleum crude recovery device, the microbe treatment system of the Oilfield Oil-Contained Silt of control device and circulating pump, it is simple to provide a kind of process flow, process cycle is short, the crude oil in oil sludge and sand can utmostly be recycled, it is able to achieve the innoxious processing method of oil sludge and sand and the relatively low oil field mud sand preparing system of expense again, sewage in system can recycle, reach recycling, innoxious purpose.
Description
Technical field
The invention belongs to oil field environment-protection technical field, it is related to micro-organism treatment process and the processing of a kind of Oilfield Oil-Contained Silt
System.
Background technique
During production is asked in open flow, drain after wellfracturing, fracturing outlet liquid, water flooding mixing proppant, bottom rock are broken
Bits and crude oil return out out of well, after separation of solid and liquid, generate oil-containing proppant and oil-containing fracturing outlet liquid enters lower step processing stream
Journey.During making a trip, in pumping process, although laying protective pad, the inevitable crude oil that generates is trickled down around well head, is formed
A small amount of ground sludge.After measured, oil content 0.2%~15.9%；It is estimated that only during reservoir reconstruction and production test, individual well
About 3 tons of oil sludge and sand are generated, due to the oil sludge and sand processing more than well number and distribution dispersion, generated during reservoir reconstruction and production test
Technical problem always urgently to be resolved.
Oily sludge is included in because of its toxicity and inflammability《National Hazard waste register》, code name HW08, " discharge in violation of regulations inclines
, hazardous waste >=3 ton are disposed, belong to serious dye environment event, charges will be investigated by touching red line ".It is related according to country and place
It is provided in standard, oil content≤1% when for being laid with well site of oil field, standard highway；Oil content when for industrial production raw material≤
2%。
Oily sludge often includes mechanical dehydration, burning disposal with processing method；Curing process, biological treatment；Extraction processing,
Pyrolysis processing, coking processing, chemico-heating wash processing, profile control technique etc..
Biological treatment is a kind of relatively effective contained Mud Treatment Technology, and the development of disposal of oily sludge from now on
One of direction.Its principle is that microorganism using petroleum hydrocarbon carries out assimilation degradation as carbon source, makes oily sludge finally complete mine
Change, is changed into harmless inorganic substances (CO2And H2O process).Since biological treatment has effect on environment small, not will form
Secondary pollution；Expense is relatively low, about the 1/4~1/3 of burning disposal expense；The advantages that high treating effect, is now subjected to
The common concern and attention of domestic and international environmental protection sector personage.
But biological treatment there is also long processing period, the shortcomings that crude oil can not be recycled, need to combine other processing techniques or
It is preferred that biological treatment mode carrys out speed up processing.
Summary of the invention
The present invention provides a kind of micro-organism treatment process of Oilfield Oil-Contained Silt and processing system, the first purpose is to utilize
Biological treatment oily sludge, the second purpose are that have the characteristics that the period is short, and the third purpose is that have quick, harmless treatment oil field
The characteristics of oil-containing mud sand.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of micro-organism treatment process of Oilfield Oil-Contained Silt, includes the following steps
Step 1：Equal quality detection
Oil sludge and sand to be processed is injected in microbial treatment device and is uniformly mixed, its oil content is detected；
Step 2：Oil slick recycling
If by greasy filth oil content < 5% in step 1 detection oil sludge and sand, after oil sludge and sand is uniformly mixed, injected clear water, and
60~80 DEG C are heated to, continues to stir, after standing, top oil slick is passed through into type petroleum crude recovery device recycling and reusing；
If being detected by step 1, greasy filth oil content >=5%, then after being uniformly mixed oil sludge and sand, injected clear water is added clear
Wash agent, and 60~80 DEG C are heated to, continue to stir, after standing, top oil slick is recycled into benefit again by type petroleum crude recovery device
With；
Step 3：Sewage discharge
The recycling of step 2 oil slick is placed on to the sewage on reactor tank upper layer, is discharged into sewage-treatment plant purification；
Step 4：Microbial degradation
Complex microbial inoculum and nutritional agents are put into mixture remaining after step 3 is handled, and is stirred, and are kept
Temperature stands progress microbial degradation in 5-9 days at 28-32 DEG C；By being repeatedly detected, stirring, throw bacterium, until making to mix in reactor tank
Object oil content < 1% is closed, processing standard is reached, degradation is completed；
Step 5：Dehydration
The oil sludge and sand for reaching the processing standard of oil content < 1% after being handled by step 4 is carried out dehydrating, and makes its moisture content <
40%；
Step 6：Oil sludge and sand qualified discharge and sewage purification
By oil sludge and sand discharge up to standard after step 5 is handled；The sewage that will be generated in step 5, is discharged into sewage-treatment plant
Purification, then stores purified purified water；
Step 7：Purify water circulation use
Reutilization system will be inputted by the purified purified water of step 6, and complete the microbiological treatment mistake of entire oil-containing mud sand
Journey.
Complex microbial inoculum in the step four is made of more plants of degradation bacterias and surfactant producing bacteria kind, described
More plants of degradation bacterias have bacillus, Bacillus foecalis alkaligenes, west figure Ze Shi pseudomonad, yellow class Nocard's bacillus and white group promise
Cattell bacterium is 1.5 by weight:1.5:1.5:3：2.5 mixing.
Nutritional agents in the step four includes any one in inorganic nitrogen, phosphorus, potassium, magnesium, calcium, iron or copper or several
Kind is composed.
Nutritional agents in the step four includes inorganic nitrogen, phosphorus, potassium and inorganic nitrogen, phosphorus, carbon content in potassium and sludge
Mass ratio is 5~10: 1: 1: 100.
It is de- using natural desiccation or vacuum filter or plate compression or belt filters pressing or centrifugation in the step five
The mode of water is carried out dehydrating.
Purifying water treating agent is also put into step six sewage purification process, and carries out micron filter；Described is micro-
Meter level is filtered using pocket type or cartridge type or filter-press type.
The purifying water treating agent includes demulsifier, flocculant, flocculation aid and additive polyacrylamide, mass percent
0.01~0.02%：0.13~0.16%：0.13~0.16%, the mass volume ratio of purifying water treating agent dosage and sewage is 0.01~
0.16%；Cleaning agent in the step two is the sodium carbonate liquor or 0.5% sodium hydroxide that mass volume ratio is 0.5%.
Including feed device, microbial treatment device, dehydration device, sewage-treatment plant, filter device, water storage device,
Type petroleum crude recovery device, control device, first circulation pump and second circulation pump, the microbial treatment device are provided with charging
Mouth, sand removing hole, water outlet and oil outlet, the delivery outlet of feed device correspond to the feed inlet of microbial treatment device, at microorganism
The sand removing hole of reason device is connected to the feeding inlet of dehydration device, and the water outlet of dehydration device is pumped by first circulation and sewage treatment
The water inlet of device is connected to, and the discharge port of dehydration device is used for dewatered material residue outlet, the water outlet of sewage-treatment plant
It is connected to filter device water inlet, filter device water outlet is connected to the water inlet of water storage device, and the water outlet of water storage device is logical
Second circulation pump is crossed to be connected to the feed inlet of microbial treatment device；The oil outlet and type petroleum crude recovery device of microbial treatment device
Oil inlet connection；The connection of the water outlet and sewage-treatment plant of microbial treatment device；The control device and feeding
It is electrically connected between device, microbial treatment device, dehydration device, filter device and circulating pump.
The microbial treatment device is microbiological treatment tank, the microbiological treatment tank include tank body, sewage valve,
Sand flash valve, blender, mixing arm, sump oil valve, feed inlet and cover；The cover is placed on the upper surface of tank body, described
Blender be fixedly connected on the center of cover upper surface, and the bottom of tank body, the bottom end of blender are extended to through cover
It is connected with mixing arm；Microbiological treatment pot bottom has sand removing hole, is connected with sand flash valve at sand removing hole；Microbiological treatment tank
The middle part of lateral wall has sewage draining exit, is connected with sewage valve at sewage draining exit；The top of microbiological treatment tank lateral wall has sump oil
Outlet is connected with sump oil valve at sump oil outlet, and feed inlet is located at cover upper surface；Along height on the side wall of the tank body
Direction is arranged at intervals with watch window.
The feed device is elevator, and elevator top is removably connected with safety guard net；The dehydration
Device is folded spiral shell dewaterer；The water storage device is water tank, and the filter device is filter；The sewage treatment
Device is sewage treatment pot, and the type petroleum crude recovery device is crude oil recovery tank；The crude oil recovery tank is also connected with third
Circulating pump, third circulating pump are connect with type petroleum crude recovery device oil outlet, and third circulating pump is sump (waste oil) pump；The control device is solid
Dingan County is in control cabinet.
Beneficial effects of the present invention：
The present invention by equal quality detection, oil slick recycling, sewage discharge, microbial degradation, dehydration, oil sludge and sand qualified discharge and
Seven steps of sewage purification and purification water circulation use, provide the oil field that a kind of process flow is simple, process cycle is short and contain
The micro-organism treatment process of oil sludge and sand；By the situation different to greasy filth oil content in oil sludge and sand, as greasy filth oil content < 5%, then
After oil sludge and sand is uniformly mixed, injected clear water, and 60~80 DEG C are heated to, continue to stir, after standing, by top oil slick
Pass through oil-collecting device recycling and reusing；If greasy filth oil content >=5%, after oil sludge and sand is uniformly mixed, injected clear water, then
Cleaning agent is added and is heated to 60~80 DEG C, continues to stir, after standing, by top oil slick by receiving, realizes oil sludge and sand
In crude oil recovery recycle.A kind of quick, harmless treatment oil field oil-containing is realized by microbial degradation and sewage purification
The micro-organism treatment process of silt particle, and by treated, sewage is recycled, is reused, and reaches recycling, innoxious mesh
's.The present invention utilizes microbial treatment device, dehydration device, sewage-treatment plant, filter device, water storage device, circulating pump, original
Oil recovery apparatus, control device and circulating pump do not need to increase special device, it is processed just to complete free of contamination oil sludge and sand
Journey provides the greasy filth sand preparing system that the period is short, expense is relatively low.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is process flow diagram of the invention；
Fig. 2 is apparatus of the present invention structure schematic diagram；
Fig. 3 is microbiological treatment jar structure schematic diagram of the present invention.
In figure：1- feed device；2- microbial treatment device；3- dehydration device；4- first circulation pump；5- second circulation
Pump；6- third circulating pump；7- water storage device；8- sewage-treatment plant；9- control device；10- filter device；11- crude oil recovery
Device；12- sewage valve；13- sand flash valve；14- blender；15- mixing arm；16- sump oil valve；17- cover；18- tank body；
19- feed inlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment one：
A kind of micro-organism treatment process of Oilfield Oil-Contained Silt as shown in Figure 1, includes the following steps
Step 1：Equal quality detection
Oil sludge and sand to be treated is injected in microbial treatment device and is uniformly mixed, its oil content is detected；
Step 2：Oil slick recycling
If by greasy filth oil content < 5% in step 1 detection oil sludge and sand, after oil sludge and sand is uniformly mixed, injected clear water, and
60~80 DEG C are heated to, continues to stir, after standing, top oil slick is passed through into type petroleum crude recovery device recycling and reusing；
If being detected by step 1, greasy filth oil content >=5%, then after being uniformly mixed oil sludge and sand, injected clear water is added clear
Wash agent, and 60~80 DEG C are heated to, continue to stir, after standing, top oil slick is recycled into benefit again by type petroleum crude recovery device
With；
Step 3：Sewage discharge
The recycling of step 2 oil slick is placed on to the sewage on reactor tank upper layer, is discharged into sewage-treatment plant purification；
Step 4：Microbial degradation
Complex microbial inoculum and nutritional agents are put into mixture remaining after step 3 is handled, and is stirred, and are kept
Temperature stands progress microbial degradation in 5-9 days at 28-32 DEG C；By being repeatedly detected, stirring, throw bacterium, until making to mix in reactor tank
Object oil content < 1% is closed, processing standard is reached, degradation is completed；
Step 5：Dehydration
The oil sludge and sand for reaching the processing standard of oil content < 1% after being handled by step 4 is carried out dehydrating, and makes its moisture content <
40%；
Step 6：Oil sludge and sand qualified discharge and sewage purification
By oil sludge and sand discharge up to standard after step 5 is handled；The sewage that will be generated in step 5, is discharged into sewage-treatment plant
Purification, then stores purified purified water；
Step 7：Purify water circulation use
Reutilization system will be inputted by the purified purified water of step 6, and complete the microbiological treatment mistake of entire oil-containing mud sand
Journey.
In actual use, oily sludge to be treated is subjected to equal quality detection first, the oily sludge that will test is pressed
Greasy filth oil content is divided into：Then the two kinds of situations of < 5% and >=5% are directed to the difference of oil content, using different processing modes, when
Greasy filth oil content < 5% in oil sludge and sand, then after oil sludge and sand being uniformly mixed, injected clear water, and 60~80 DEG C are heated to, after
Top oil slick is passed through type petroleum crude recovery device recycling and reusing after standing by continuous stirring；When greasy filth oil content >=5%, then will stir
It mixes after mixing, injected clear water, adds cleaning agent, the specific dosage of cleaning agent is：The additional amount of cleaning agent with
The mass volume ratio of oil sludge and sand is 0.1-0.5%, and is heated to 60~80 DEG C, continues to stir, after standing, top oil slick is led to
Cross type petroleum crude recovery device recycling and reusing；Then remaining mixture is stirred, maintains the temperature at 28-32 DEG C, stood micro-
Biodegrade, centre will carry out multiple detection, stirring, throw complex microbial inoculum and nutritional agents, wherein microbial composite bacteria
The additional amount of agent is：Complex microbial inoculum with to degradation product（Remaining mixture after step 3 processing）Mass volume ratio
For：The additional amount of 0.2-0.7%, nutritional agents is：Nutritional agents with to degradation product（Remaining mixture after step 3 processing）Quality
Volume ratio is：0.05-0.1%；Until mixture oil content < 1% in reactor tank, reach processing standard, degradation is completed；Then
The oil sludge and sand that degradation is completed is carried out dehydrating, and makes its moisture content < 40%；Oil sludge and sand discharge after dehydration, then de-
Generate during water and fly oily wastewater in the middle part of sewage and reactor tank and be discharged into sewage-treatment plant purification, finally by purified water into
Row recycles.In actual use, it by the purified purified water of step 7, can repeat to recycle, can be mixed with outer supply water
It closes and utilizes, also can be used alone；It can be also used for the homogeneous washing of the oil sludge and sand into reactor tank and for being dehydrated separator
Flushing, not only purified water is reused in this way, but also the microbiological treatment of oil-containing mud sand is made to facilitate progress.Actual use
When used sewage-treatment plant, dehydration device, control device, filter device, water storage device and type petroleum crude recovery device be
The prior art.
Microbial treatment device of the invention provides controllable environmental condition for the biochemical reaction of biosystem, to promote
Bioprocess efficiently carries out, for example, temperature, pH, dissolved oxygen, mixing, shearing, feed supplement etc..Microbial degradation petroleum in the present invention
It mainly include 3 processes：First, petroleum hydrocarbon is adsorbed in antimicrobial surface；Second, petroleum hydrocarbon is transported by microbial cell film；
Third, petroleum hydrocarbon are degraded in microbial cell.Petroleum hydrocarbon has hydrophobicity, solubility very little in water, part petroleum
It can be adsorbed on soil particle object surface, it is limited and be degraded by microorganisms.Petroleum mainly passes through transdermal delivery and enters microbial body
It is interior, but be not also very sufficiently about the Mechanism Study that petroleum passes through cell membrane.It is generally acknowledged that petroleum mainly pass through active absorption and
Two approach of Passive intake enter the intracellular of microorganism.The degradation of petroleum in the cell is mainly in the cell in relation to degrading enzyme
Catalytic action occur enzymatic reaction.The microbial degradation mechanism of petroleum is proposed first by some microbiologists in the U.S.
's.General petrochemistry substance is biodegradable in the following manner:Petroleum+microorganism+O2+ nutrient+CO2+H2O+ product
+ energy+microbial cell amount.Petroleum is made of the complex mixture of alkane, cycloalkane, aromatic hydrocarbon etc..Microorganism energy
It is unsaturated fatty acid by various hydrocarbon metabolisms and generates the displacement of certain double bonds or generate methylation, formation fatty acid, then into
Row degradation.Under the action of oxygen, occur oxidation, dehydrogenation forms water and carbon dioxide, nutrient for microorganism from
Body growth release energy.The present invention utilizes these characteristics of microbial degradation petroleum, and microbial degradation stone is realized in reactor tank
Oil, and realize that chemical washing combines with biological treatment, realizes crude oil recovery, cycling utilization of wastewater.The present invention passes through equal quality inspection
Survey, oil slick recycling, sewage discharge, microbial degradation, dehydration, oil sludge and sand qualified discharge and sewage purification and purified water circulation
Seven steps utilized combine method of chemical treatment and biodegrade processing, will be oily by method of chemical treatment
Sand surface washes down convenient for the greasy dirt of cleaning, and carries out appropriate recycling.Biodegrade processing, mainly by chemical washing method
Impossible work, at a certain temperature and under certain biotic environment, using complex microbial inoculum by the oil in sand
Dirt carries out a technique of degradation treatment, and the present invention provides a kind of process flow is simple, process cycle is short, can maximum journey
Crude oil in degree recycling oil sludge and sand, and it is able to achieve the innoxious processing method of oil sludge and sand.
Embodiment two：
A kind of micro-organism treatment process of Oilfield Oil-Contained Silt as shown in Figure 1, with embodiment one the difference is that：
Oil sludge and sand through greasy filth oil content 10% in detection oil sludge and sand is uniformly mixed；With 5% sodium hydroxide solution, heating 80
DEG C, revolving speed 40r/min washs 40min, crude oil removal 50.55%；By bacillus（Bacillus encimensis
strain encimensis）, Bacillus foecalis alkaligenes（Alcaligenesfaecalis strain）, west figure Ze Shi pseudomonad
（Pseudomonas stutzeri strain）, yellow class Nocard's bacillus（Nocardioidesluteus）, white group promise Cattell
Bacterium（Nocardioidesalbus）Deng five kinds of efficient degrading bacterias by weight 1.5:1.5:1.5:3：2.5 mixing；Add carbon source,
The nutriments such as nitrogen source, inorganic salts and microelement add stalk as leavening agent, solid composite microbe microbial inoculum are made.?
Above-mentioned solid composite microbe microbial inoculum is added in reactor tank, is stirred evenly, and is kept the temperature at 30 DEG C or so, is added within every 7 days primary multiple
Object bacteria agent is closed, additive amount is identical as first time；Until the mineral oil total amount in oil sludge and sand terminates less than 1%.By folding spiral shell machine
Dehydration separates silt particle up to standard, makes its water content≤40%, qualified discharge.Again by after sewage treatment, recycle.
Embodiment three：
A kind of micro-organism treatment process of Oilfield Oil-Contained Silt as shown in Figure 1, with embodiment one the difference is that：Described
Complex microbial inoculum in step 4 is made of more plants of degradation bacterias and surfactant producing bacteria kind, and the more plants of degradation bacterias have
Bacillus（Bacillus encimensis strain encimensis）, Bacillus foecalis alkaligenes
（Alcaligenesfaecalis strain）, west figure Ze Shi pseudomonad（Pseudomonas stutzeri strain）, it is yellow
Color class Nocard's bacillus（Nocardioidesluteus）With white group Nocard's bacillus（Nocardioidesalbus）It is by weight
1.5:1.5:1.5:3：2.5 mixing.
Nutritional agents preferably in step 4 include any one in inorganic nitrogen, phosphorus, potassium, magnesium, calcium, iron or copper or
It is several to be composed.
Nutritional agents in the preferably described step four includes inorganic nitrogen, phosphorus, potassium and inorganic nitrogen, phosphorus, in potassium and sludge
The mass ratio of carbon content is 5~10: 1: 1: 100.
Dehydration mode in the preferably described step five using natural desiccation or vacuum filter or
Plate compression or belt filters pressing or centrifugal dehydration.
In the specific implementation, the complex microbial inoculum of the investment in step 4 by more plants of degradation bacterias and produces surfactant
Strain composition and nutritional agents include that any one or a few in inorganic nitrogen, phosphorus, potassium, magnesium, calcium, iron or copper is composed, and are made
The degradation process for obtaining microorganism carries out more thoroughly；Dehydration mode in the step five using natural desiccation or
Vacuum filter or plate compression or belt filters pressing or centrifugal dehydration so that filter process is not only easy to implement, but also to filter
Effect it is preferable.Nutritional agents includes inorganic nitrogen, phosphorus, potassium and inorganic nitrogen, phosphorus, the mass ratio of carbon content is 5~10 in potassium and sludge:
1: 1: 100, preferably embody the effect of nutritional agents.
Example IV：
A kind of micro-organism treatment process of Oilfield Oil-Contained Silt as shown in Figure 1, with embodiment one the difference is that：Described
Purifying water treating agent is also put into step 6 sewage purification process, and carries out micron filter；What the micron filter used
It is pocket type or cartridge type or filter-press type.
Preferably the purifying water treating agent includes demulsifier, flocculant, flocculation aid and additive polyacrylamide, matter
Measure percentage 0.01~0.02%：0.13~0.16%：0.13~0.16%, the mass volume ratio of purifying water treating agent dosage and sewage
It is 0.01~0.16%；Cleaning agent in the step two is the sodium carbonate liquor or 0.5% hydrogen that mass volume ratio is 0.5%
Sodium oxide molybdena.
In actual use, purifying water treating agent is put into step 6 sewage purification process, and carries out micron filter, is made
It is more preferable to obtain clean-up effect.Micron filter can guarantee that the effect of filtering meets the requirements using pocket type or cartridge type or filter-press type,
During purified water, addition purifying water treating agent includes demulsifier, flocculant, flocculation aid and polyacrylamide, and dosage is quality
Volume ratio is 0.02~0.16%, so that the effect of purified water is more preferable.
Embodiment five：
A kind of oil sludge and sand microbe treatment system as shown in Figure 2, including feed device 1, microbial treatment device 2, dehydration dress
It sets 3, sewage-treatment plant 8, filter device 10, water storage device 7, type petroleum crude recovery device 11, control device 9, first circulation and pumps 4 and
Second circulation pump 5, the microbial treatment device 2 are provided with feed inlet 19, sand removing hole, water outlet and oil outlet, feeding dress
The delivery outlet for setting 1 corresponds to the feed inlet 19 of microbial treatment device 2, the sand removing hole of microbial treatment device 2 and dehydration device 3
The water outlet of feeding inlet connection, dehydration device 3 is connected to by first circulation pump 4 with the water inlet of sewage-treatment plant 8, dehydration dress
It sets 3 discharge port to be used for dewatered material residue outlet, the water outlet and 10 water inlet of filter device of sewage-treatment plant 8 connect
Logical, 10 water outlet of filter device be connected to the water inlet of water storage device 7, the water outlet of water storage device 7 by second circulation pump 5 and
The feed inlet 19 of microbial treatment device 2 is connected to；The oil outlet of microbial treatment device 2 and the oil inlet of type petroleum crude recovery device 11
Connection；The connection of the water outlet and sewage-treatment plant 8 of microbial treatment device 2；The control device 9 and feed device 1,
It is electrically connected between microbial treatment device 2, dehydration device 3, filter device 10 and circulating pump.
In actual use, start feed device 1 first, oil sludge and sand to be processed is input to microbiological treatment by feed device 1
Device 2, microbial treatment device 2 have the function of stirring, heating, heat preservation etc., and stirring uses hydraulic lifting agitating paddle, heating and thermal insulation
Using electric tracing.It after oil sludge and sand to be processed enters microbial treatment device 2, is stirred by homogeneous, is uniformly mixed oil sludge and sand；
Clear water is added, is heated to 60~80 DEG C, electrical heat tracing carries out hot water washing, then adds cleaning agent, microbiological treatment dress again
It sets and remains 60~80 DEG C in 2, carry out chemical washing；After hot water washing and chemical washing, about 30%-50% can remove
Crude oil.Hereafter, complex microbial inoculum, nutritional agents then in microbial treatment device 2 are added, and is stirred, keeps the temperature 30 DEG C
Left and right stands and carries out microbial degradation.By detecting, stirring for several times, throw bacterium, makes its oil content < 1%, reach processing standard, stop
Only antimicrobial treatment process.This process uses harmless treatment completely, has achieved the purpose that environmentally protective.Through microbiological treatment
The oil sludge and sand crossed is input to the lamination 3 in dehydration device, by dehydration device 3 by circulating pump and squeezes, and water is filtered out from gap, real
Existing oil sludge and sand filter cake solid content constantly increases, final realization greasy filth water-containing rate≤40%, silt particle outlet, and the sewage squeezed out is logical
It crosses circulating pump and is input to the progress purified treatment of sewage-treatment plant 8.Into the sewage of sewage-treatment plant 8, at past sewage
It manages and adds the additives such as demulsifier, flocculant, flocculation aid in device 8, dosage 0.02~0.16%, and after mixing evenly, then be pumped into
In filter device 10, by 0.5~10 micron of filtering, reach PH6.5-8.5, petroleum substance（mg/l）20-200 suspends
Object SS (mg/l) 10-150, salinity（g/l）≤ 1 qualified index, filtered water is stored in water storage device 7.It is needing
When wanting, the water in water storage device 7 can be pumped into microbial treatment device 2 by circulating pump by circulating pump, provide water source for it；?
It is pumped into dehydration device 3, is used for flushing device, realize that the repetition of processing water recycles.Greasy filth in type petroleum crude recovery device 11
Sand, by a series of processing, the crude oil of 30-50% can be separated from oil sludge and sand, by gravity, can be floated on and be contained
Greasy dirt water surface works as original by the floating oil collecting for floating on top in crude oil return device 11 by valve control, visualization pipeline
After oil mass in oily return device 11 reaches a certain level, well site recyclable device or carried of crude oil vehicle can be pumped by crude oil pump
In, realize the recycling and reusing of crude oil.In actual use, at different positions, different functions, circulating pump is using different
Pump kind, can not only guarantee entire treatment process goes on smoothly but also can save equipment cost, saves unnecessary equipment investment.
In the specific implementation, the micron filter is using pocket type or cartridge type or pressure during the filtration process by the present invention
The filter type of filter formula can guarantee that the effect of filtering meets the requirements in this way.During purified water, purifying water treating agent is added
Comprising additives such as demulsifier, flocculant, flocculation aids, dosage is 0.02~0.16, so that the effect of purified water is more preferable.
Control device 9 and feed device 1, microbial treatment device 2, dehydration device 3, sewage-treatment plant 8, filter device
10, it is electrically connected between water storage device 7, circulating pump, type petroleum crude recovery device 11 and circulating pump, realizes entire treatment process and concentrate control
System, ensure that treatment process is not only controllable, but also safe, orderly.
The present invention provides a kind of environmentally protective greasy filth sand preparation plant, is able to achieve chemical washing and mutually ties with biological treatment
It closes, realize crude oil recovery, cycling utilization of wastewater, this system process cycle is short, expense is relatively low, can recycle crude oil and system
Interior sewage can recycle, and achieve the purpose that recycling, innoxious.
Embodiment six：
The microbe treatment system of a kind of Oilfield Oil-Contained Silt as shown in Figure 3, on the basis of embodiment six：Micro- life
Object processing unit 2 is microbiological treatment tank, and the microbiological treatment tank includes tank body 18, sewage valve 12, sand flash valve 13, stirring
Device 14, mixing arm 15, sump oil valve 16, feed inlet 19 and cover 17；The cover 17 is placed on the upper surface of tank body 18, institute
The blender 14 stated is fixedly connected on the center of 17 upper surface of cover, and the bottom of tank body 18 is extended to through cover 17, stirs
The bottom end for mixing device 14 is connected with mixing arm 15；2 bottom of microbiological treatment tank has sand removing hole, is connected with sediment outflow at sand removing hole
Valve 13；The middle part of 2 lateral wall of microbiological treatment tank has sewage draining exit, is connected with sewage valve 12 at sewage draining exit；Microbiological treatment tank 2
The top of lateral wall has sump oil outlet, is connected with sump oil valve 16 at sump oil outlet, feed inlet 19 is located at table on cover 17
Face；Along short transverse on the side wall of the tank body 18, it is arranged at intervals with watch window.
In actual use, oil sludge and sand to be processed is placed in microbiological treatment tank, if detecting oil sludge and sand by step 1
Middle greasy filth oil content < 5%, then after oil sludge and sand being uniformly mixed, injected clear water, and 60~80 DEG C are heated to, continue to stir,
After standing, top oil slick is passed through into oil-collecting device recycling and reusing；
If being detected by step 1, if greasy filth oil content >=5%, after oil sludge and sand is uniformly mixed, injected clear water is added
Cleaning agent, and 60~80 DEG C are heated to, continue to stir, after standing, top oil slick is passed through into oil-collecting device recycling and reusing；
Step 3：Sewage discharge
The recycling of step 2 oil slick is placed on to the sewage on reactor tank upper layer, is discharged into sewage-treatment plant purification；
Step 4：Microbial degradation
Complex microbial inoculum and nutritional agents are put into mixture remaining after step 3 is handled, and is stirred, and are kept
Temperature stands progress microbial degradation in 5-9 days at 28-32 DEG C；By being repeatedly detected, stirring, throw bacterium, until making to mix in reactor tank
Object oil content < 1% is closed, processing standard is reached, degradation is completed；
Preferably the feed device 1 is using elevator.Using this scheme, not only facilitated the conveying of oil-containing mud sand, but also
Save equipment cost.
Preferably the feed device 1 is removably connected with safety guard net.Add safety guard net, Neng Goubao
Demonstrate,prove the safety of feeding process.The dehydration device 3 is using folded spiral shell dewaterer；The water storage device 7 using
Water tank, the filter device 10 is using filter.The sewage-treatment plant 8 using sewage treatment pot,
The type petroleum crude recovery device 11 is using crude oil recovery tank.
In actual use, using the above scheme, it had not only been able to satisfy the requirement of processing, transmission and storage, but also equipment investment can be saved
Cost reduces the expense of oil-containing mud sand processing.
Embodiment seven：
The microbe treatment system of a kind of Oilfield Oil-Contained Silt as shown in Figure 2, on the basis of embodiment six：The feeding
Device 1 is elevator, and elevator top is removably connected with safety guard net；The dehydration device 3 is folded spiral shell dewaterer；
The water storage device 7 is water tank, and the filter device 10 is filter；The sewage-treatment plant 8 is at sewage
Tank is managed, the type petroleum crude recovery device is crude oil recovery tank 11；The crude oil recovery tank 11 is also connected with third circulating pump 6,
Third circulating pump 6 is connect with type petroleum crude recovery device oil outlet, and third circulating pump 6 is sump (waste oil) pump；The fixed peace of the control device 9
In control cabinet.
In actual use, using the above scheme, it had not only been able to satisfy the requirement of processing, transmission and storage, but also equipment can be saved
Cost of investment reduces the expense of oil-containing mud sand processing.It can guarantee the normal oil transportation work of circulating pump in this way, it will not be because of pump
Go wrong and influence the treatment progress of oil-containing mud sand.
Preferably the control device 9 is fixedly mounted in control cabinet, and control device 9 can be guaranteed not by environment
Normal control program is implemented in interference.
In conclusion being discharged by equal quality detection, oil slick recycling, sewage by means of above-mentioned technical proposal of the invention, being micro-
Biodegrade, dehydration, oil sludge and sand qualified discharge and sewage purification and seven steps and additive for purifying water circulation use
Reasonable employment, provide that a kind of process flow is simple, and process cycle is short, can utmostly recycle the crude oil in oil sludge and sand,
It is able to achieve the innoxious processing method of oil sludge and sand again.Pass through feed device, microbial treatment device, dehydration device, sewage treatment
The setting of device, filter device, water storage device, circulating pump, type petroleum crude recovery device, control device and circulating pump, microbiological treatment
The feed inlet of device is used to receive the oil sludge and sand to be processed of feed device conveying, and the discharge port of microbial treatment device and dehydration fill
The feeding inlet connection set, the water outlet of dehydration device are connected to the water inlet of sewage-treatment plant, and the discharge port of dehydration device is used
It is connected to, is filtered with filter device water inlet by circulating pump in by the water outlet of dewatered material residue outlet, sewage-treatment plant
Device water outlet is connected to the water inlet of water storage device, and the water outlet of water storage device passes through circulating pump and microbial treatment device
Water inlet connection；The oil outlet of microbial treatment device is connected to the oil inlet of type petroleum crude recovery device, and type petroleum crude recovery device goes out
Hydraulic fluid port is connect with circulating pump；The control device is filled with feed device, microbial treatment device, dehydration device, sewage treatment
It sets, be electrically connected between filter device, water storage device, circulating pump, type petroleum crude recovery device, control device and circulating pump, provide one
Kind is environmentally protective, process cycle is short, expense is relatively low and can recycle the greasy filth sand preparing system of crude oil, and in system
Sewage can recycle, and achieve the purpose that recycling, innoxious.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
It it is to be appreciated that the technical solution between each embodiment of the present invention can be combined with each other, but must be with ability
Based on domain those of ordinary skill can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of this technical solution is not present, also not the present invention claims protection scope within.The present embodiment does not describe in detail
Component and the device category industry well-known components and common structure or conventional means, do not describe one by one here.
Claims (10)
1. a kind of micro-organism treatment process of Oilfield Oil-Contained Silt, it is characterised in that：Include the following steps
Step 1：Equal quality detection
Oil sludge and sand to be processed is injected in microbial treatment device and is uniformly mixed, its oil content is detected；
Step 2：Oil slick recycling
If by greasy filth oil content < 5% in step 1 detection oil sludge and sand, after oil sludge and sand is uniformly mixed, injected clear water, and
60~80 DEG C are heated to, continues to stir, after standing, top oil slick is passed through into type petroleum crude recovery device recycling and reusing；
If being detected by step 1, greasy filth oil content >=5%, then after being uniformly mixed oil sludge and sand, injected clear water is added clear
Wash agent, and 60~80 DEG C are heated to, continue to stir, after standing, top oil slick is recycled into benefit again by type petroleum crude recovery device
With；
Step 3：Sewage discharge
The recycling of step 2 oil slick is placed on to the sewage on reactor tank upper layer, is discharged into sewage-treatment plant purification；
Step 4：Microbial degradation
Complex microbial inoculum and nutritional agents are put into mixture remaining after step 3 is handled, and is stirred, and are kept
Temperature stands progress microbial degradation in 5-9 days at 28-32 DEG C；By being repeatedly detected, stirring, throw bacterium, until making to mix in reactor tank
Object oil content < 1% is closed, processing standard is reached, degradation is completed；
Step 5：Dehydration
The oil sludge and sand for reaching the processing standard of oil content < 1% after being handled by step 4 is carried out dehydrating, and makes its moisture content <
40%；
Step 6：Oil sludge and sand qualified discharge and sewage purification
By oil sludge and sand discharge up to standard after step 5 is handled；The sewage that will be generated in step 5, is discharged into sewage-treatment plant
Purification, then stores purified purified water；
Step 7：Purify water circulation use
Reutilization system will be inputted by the purified purified water of step 6, and complete the microbiological treatment mistake of entire oil-containing mud sand
Journey.
2. a kind of micro-organism treatment process of Oilfield Oil-Contained Silt as described in claim 1, it is characterised in that：The step
Complex microbial inoculum in four is made of more plants of degradation bacterias and surfactant producing bacteria kind, and the more plants of degradation bacterias have gemma
Bacillus（Bacillus encimensis strain encimensis）, Bacillus foecalis alkaligenes（Alcaligenesfaecalis
strain）, west figure Ze Shi pseudomonad（Pseudomonas stutzeri strain）, yellow class Nocard's bacillus
（Nocardioidesluteus）With white group Nocard's bacillus（Nocardioidesalbus）It is by weight 1.5:1.5:1.5:
3：2.5 mixing.
3. a kind of micro-organism treatment process of Oilfield Oil-Contained Silt as described in claim 1, it is characterised in that：The step
Nutritional agents in four includes that any one or a few in inorganic nitrogen, phosphorus, potassium, magnesium, calcium, iron or copper is composed.
4. a kind of micro-organism treatment process of Oilfield Oil-Contained Silt as claimed in claim 1 or 3, it is characterised in that：Described
Nutritional agents in step 4 includes inorganic nitrogen, phosphorus, potassium and inorganic nitrogen, phosphorus, the mass ratio of carbon content is 5~10 in potassium and sludge
∶1∶1∶100。
5. a kind of micro-organism treatment process of Oilfield Oil-Contained Silt as described in claim 1, it is characterised in that：The step
It is carried out at dehydration in five using the mode of natural desiccation or vacuum filter or plate compression or belt filters pressing or centrifugal dehydration
Reason.
6. a kind of micro-organism treatment process of Oilfield Oil-Contained Silt as described in claim 1, it is characterised in that：The step
Purifying water treating agent is also put into six sewage purification process, and carries out micron filter；The micron filter is using bag
Formula or cartridge type or filter-press type.
7. a kind of micro-organism treatment process of Oilfield Oil-Contained Silt as claimed in claim 5, it is characterised in that：The water purification
Inorganic agent includes demulsifier, flocculant, flocculation aid and additive polyacrylamide, mass percent 0.01~0.02%：0.13~
0.16%：0.13~0.16%, the mass volume ratio of purifying water treating agent dosage and sewage is 0.01~0.16%；The step two
In cleaning agent be mass volume ratio be 0.5% sodium carbonate liquor or 0.5% sodium hydroxide.
8. a kind of microbe treatment system of Oilfield Oil-Contained Silt as described in claim 1, it is characterised in that：It is filled including feeding
It sets（1）, microbial treatment device（2）, dehydration device（3）, sewage-treatment plant（8）, filter device（10）, water storage device（7）,
Type petroleum crude recovery device（11）, control device（9）, first circulation pump（4）It is pumped with second circulation（5）, the described microbiological treatment dress
It sets（2）It is provided with feed inlet（19）, sand removing hole, water outlet and oil outlet, feed device（1）Delivery outlet correspond to microbiological treatment
Device（2）Feed inlet（19）, microbial treatment device（2）Sand removing hole and dehydration device（3）Feeding inlet connection, dehydration dress
It sets（3）Water outlet pass through first circulation pump（4）With sewage-treatment plant（8）Water inlet connection, dehydration device（3）Discharging
Mouth is used for dewatered material residue outlet, sewage-treatment plant（8）Water outlet and filter device（10）Water inlet connection, filtering
Device（10）Water outlet and water storage device（7）Water inlet connection, water storage device（7）Water outlet pass through second circulation pump（5）
With microbial treatment device（2）Feed inlet（19）Connection；Microbial treatment device（2）Oil outlet and type petroleum crude recovery device
（11）Oil inlet connection；Microbial treatment device（2）Water outlet and sewage-treatment plant（8）Connection；The control
Device（9）With feed device（1）, microbial treatment device（2）, dehydration device（3）, filter device（10）It is electric between circulating pump
Property connection.
9. a kind of microbe treatment system of Oilfield Oil-Contained Silt as claimed in claim 8, it is characterised in that：Micro- life
Object processing unit（2）It is microbiological treatment tank, the microbiological treatment tank includes tank body（18）, sewage valve（12）, sand flash valve
（13）, blender（14）, mixing arm（15）, sump oil valve（16）, feed inlet（19）And cover（17）；The cover（17）
It is placed on tank body（18）Upper surface, the blender（14）It is fixedly connected on cover（17）The center of upper surface, and run through
Cover（17）Extend to tank body（18）Bottom, blender（14）Bottom end be connected with mixing arm（15）；Microbiological treatment
Tank（2）Bottom has sand removing hole, is connected with sand flash valve at sand removing hole（13）；Microbiological treatment tank（2）The middle part of lateral wall has
Sewage draining exit is connected with sewage valve at sewage draining exit（12）；Microbiological treatment tank（2）The top of lateral wall has sump oil outlet, dirty
Sump oil valve is connected at oily outlet（16）, feed inlet（19）Positioned at cover（17）Upper surface；The tank body（18）Side wall
On along short transverse, be arranged at intervals with watch window.
10. a kind of microbe treatment system of Oilfield Oil-Contained Silt as claimed in claim 8, it is characterised in that：Described send
Expect device（1）It is elevator, elevator top is removably connected with safety guard net；The dehydration device（3）It is folded spiral shell
Dewaterer；The water storage device（7）It is water tank, the filter device（10）It is filter；The sewage treatment dress
It sets（8）It is sewage treatment pot, the type petroleum crude recovery device is crude oil recovery tank（11）；The crude oil recovery tank（11）Also connect
It is connected to third circulating pump（6）, third circulating pump（6）It is connect with type petroleum crude recovery device oil outlet, third circulating pump（6）It is sump oil
Pump；The control device（9）It is fixedly mounted in control cabinet.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109482638A (en) * | 2018-12-14 | 2019-03-19 | 中国石油集团川庆钻探工程有限公司 | A kind of pseudomonas drop oil bacterium L-1 and its microorganism mix bacterium agent and oil-polluted soils in-situ remediation method |
| CN111115992A (en) * | 2019-12-27 | 2020-05-08 | 东北石油大学 | Oily sludge treatment process and integrated treatment device |
| CN111778057A (en) * | 2020-07-09 | 2020-10-16 | 中国石油大学(华东) | Oil gas field drilling waste mud pre-separation-desorption-oil recovery coupling process system |
| CN112520964A (en) * | 2020-12-18 | 2021-03-19 | 滨州市华滨聚成环保科技有限责任公司 | Comprehensive treatment method for oily sludge |
| CN112679057A (en) * | 2020-11-18 | 2021-04-20 | 山东高科联合环保科学研究院有限公司 | Marine microorganism reduction harmless treatment process for oil-containing sludge of refinery plant |
| CN113651509A (en) * | 2021-03-30 | 2021-11-16 | 重庆华国环保科技有限公司 | Oil sludge biological agent treatment process |
| CN114426384A (en) * | 2022-02-08 | 2022-05-03 | 河南省高新技术实业有限公司 | Method for treating oil sludge |
| CN115724563A (en) * | 2021-08-31 | 2023-03-03 | 中国石油天然气股份有限公司 | Mobile aerobic microorganism oil sludge treatment system and treatment method |
| CN116813167A (en) * | 2023-08-09 | 2023-09-29 | 大庆永铸石油技术开发有限公司 | Harmless sludge treatment method based on microbial treatment |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482638A (en) * | 2018-12-14 | 2019-03-19 | 中国石油集团川庆钻探工程有限公司 | A kind of pseudomonas drop oil bacterium L-1 and its microorganism mix bacterium agent and oil-polluted soils in-situ remediation method |
| CN109368961A (en) * | 2018-12-17 | 2019-02-22 | 海宁卡森皮革有限公司 | A kind of leather method for sludge treatment and its device |
| CN111115992A (en) * | 2019-12-27 | 2020-05-08 | 东北石油大学 | Oily sludge treatment process and integrated treatment device |
| CN111778057A (en) * | 2020-07-09 | 2020-10-16 | 中国石油大学(华东) | Oil gas field drilling waste mud pre-separation-desorption-oil recovery coupling process system |
| CN111778057B (en) * | 2020-07-09 | 2022-04-29 | 中国石油大学(华东) | Oil gas field drilling waste mud pre-separation-desorption-oil recovery coupling process system |
| CN112679057A (en) * | 2020-11-18 | 2021-04-20 | 山东高科联合环保科学研究院有限公司 | Marine microorganism reduction harmless treatment process for oil-containing sludge of refinery plant |
| CN112679057B (en) * | 2020-11-18 | 2022-07-19 | 山东高科联合环保科学研究院有限公司 | Marine microorganism reduction harmless treatment process for oil-containing sludge of refinery |
| CN112520964A (en) * | 2020-12-18 | 2021-03-19 | 滨州市华滨聚成环保科技有限责任公司 | Comprehensive treatment method for oily sludge |
| CN113651509A (en) * | 2021-03-30 | 2021-11-16 | 重庆华国环保科技有限公司 | Oil sludge biological agent treatment process |
| CN115724563A (en) * | 2021-08-31 | 2023-03-03 | 中国石油天然气股份有限公司 | Mobile aerobic microorganism oil sludge treatment system and treatment method |
| CN114426384A (en) * | 2022-02-08 | 2022-05-03 | 河南省高新技术实业有限公司 | Method for treating oil sludge |
| CN116813167A (en) * | 2023-08-09 | 2023-09-29 | 大庆永铸石油技术开发有限公司 | Harmless sludge treatment method based on microbial treatment |
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