CN106277614B - A kind of processing method of reuse condensed oil sewage - Google Patents
A kind of processing method of reuse condensed oil sewage Download PDFInfo
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- CN106277614B CN106277614B CN201610764570.7A CN201610764570A CN106277614B CN 106277614 B CN106277614 B CN 106277614B CN 201610764570 A CN201610764570 A CN 201610764570A CN 106277614 B CN106277614 B CN 106277614B
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- 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
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
- C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
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- C02F2101/30—Organic compounds
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- 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
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- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C02F2303/14—Maintenance of water treatment installations
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- 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
Abstract
A kind of processing method of reuse condensed oil sewage, processing step are as follows: thick-oil waste water is passed sequentially through into sedimentation device, air bearing or Bi-stage air floater, biofilm reactor, oxidation enhanced biological reactor, ultrafiltration apparatus, second level reverse osmosis apparatus, continuous electric desalination device.
Description
Technical field
The present invention relates to field of oilfield sewage treatment, in particular to a kind of processing method of reuse condensed oil sewage.
Background technique
In oil extraction process, water is produced with petroleum, and dehydration device can deviate from water from oil, through dehydration device
The water separated is oilfield produced water (Produced Water), or " oil field extracted water ".The position according to locating for oil field
It sets, recovered water can be subdivided into land (Offshore) oil extraction-generated waste water and marine (Onshore) oil extraction-generated waste water.According to oil property
Difference, oil extraction-generated waste water can be divided into condensed oil sewage, light oil sewage and high solidifying oily water etc. again.
Condensed oil sewage refers to the sewage generated during heavy crude heat extraction, the main sewage and steam generated including heat extraction by steam injection
It handles up the sewage of generation.The ratio between heavy crude heat extraction output oil mass and steam injection amount are usually 0.3~0.6, i.e., every one ton of oil of extraction needs
3.3~7.7 tons of steam of injection, by 1,000,000 tons of AOF calculations, 330~7,700,000 tons of annual boiler feed water water requirement, this part water
All outputs in the form of oily wastewater, and carry a large amount of thermal energy.Condensed oil sewage has dissolved stratum in the oil reservoir of high temperature and pressure
In various salts and gas, many suspended solids are carried in oil recovery process and in oil reservoir, during oil-gas gathering and transportation
All kinds of chemical agents have been doped into, and can also contain a large amount of dissolved organic matter in condensed oil sewage.Therefore, existing reuse is thick
Oily sewage disposal method usually has the following problems:
1. the grease density contrast of condensed oil sewage is small.Under normal conditions, viscous crude density is in 900kg/m3More than, grease density contrast
Less than 100kg/m3.Therefore, gravity oil-removing is difficult.
2. condensed oil sewage has biggish viscosity.Since the colloid in viscous crude, asphalt content are high, so that viscosity of thickened oil
It is very high.Due to the presence of resin and asphalt in condensed oil sewage, biggish viscosity is shown.
3. condensed oil sewage easily forms the oil-in-water emulsion centered on small elaioleucite.Due to the colloid and drip in viscous crude
Green matter has natural emulsification, so that condensed oil sewage emulsification is more serious.The presence of emulsion, so that oil droplet coalescence is tired
Difficulty, " coarse " difficulty is big, to further increase the difficulty of oil removing.
4. condensed oil sewage biodegradability is low, need to add various chemical agents, and chemistry in exploitation and oil water separation process
Medicament adds type, the variation of property sum number amount very greatly, and most of is bio-refractory, these organic substance residues are useless
In water, difficulty is brought to wastewater treatment.
5. condensed oil sewage temperature with higher.By the mined viscous crude of steam heating power, the temperature one of earth's surface is reached
As at 70 DEG C or more, the sewage temperature thus deviate from is also very high.
Chinese patent CN103936185A discloses a kind of super-viscous oil high temperature waste water treating and reutilizing in the method for thermal recovery boiler；
Chinese patent CN203845890U discloses a kind of condensed oil sewage reuse injection boiler processing system.
Since viscous crude density is high, viscosity is big, resin and asphalt content is high, cause the density variation of crude oil and water small；Glue
Matter and asphalitine have natural emulsified property, and oil droplet cohesion is more difficult in water supply；The viscosity of crude being separated from the water out is high, flows
Dynamic property is poor, also results in difficulty to crude oil recovery.Therefore the processing of condensed oil sewage is relatively difficult.
Summary of the invention
In order to solve problems in the prior art, the present invention provides a kind of processing method of reuse condensed oil sewage, and feature exists
In processing step are as follows: thick-oil waste water is passed sequentially through sedimentation device, air bearing or Bi-stage air floater, biofilm reactor, oxidation
Enhanced biological reactor, ultrafiltration apparatus, second level reverse osmosis apparatus, continuous electric desalination device, the Bi-stage air floater are twin-stage
Dissolved air flotation device.
In some embodiments, the sedimentation device is coagulant precipitation device.
In some embodiments, filler used in the biofilm reactor is MCM micropore composite gap biological ball.
In some embodiments, the MCM micropore composite gap biological ball by a netted shell of rigid plastics and fills
Fill out microporous medium block composition therein.
In some embodiments, the biofilm reactor uses second level coupling technique.
In some embodiments, 4 partitions are provided in the biofilm reactor, from water inlet to water outlet
On direction, the 1st, 2,3 partition bottom is provided with the gap that can be passed water through, and the bottom of the 4th partition cannot pass water through.
In some embodiments, the biofilm reactor is separated into five spaces by 4 partitions, from water inlet to
On the direction of water outlet, the bottom in second space and the 4th space is provided with aerator.
In some embodiments, the oxidation enhanced biological reactor shares 1-3 set, every set oxidation enhanced biological reaction
Device includes 1 set of ozone reactor and 1 set of charcoal reactor.
In some embodiments, the ultrafiltration apparatus is external-compression type ultrafiltration apparatus.
In some embodiments, the film wire internal diameter of ultrafiltration membrane material is 0.5-1.0mm in the ultrafiltration apparatus, and outer diameter is
1.0-2.0mm。
The processing method of reuse condensed oil sewage provided by the invention is greatly improved sewage treating efficiency, and enhancing degradation is organic
The microbial activity of sludge effectively lowers sludge yield.Removal of this method especially suitable for hardly degraded organic substance.
Detailed description of the invention
Fig. 1 is the processing method schematic diagram of reuse condensed oil sewage of the present invention；
Fig. 2 is that the second level of biofilm reactor in the processing method of reuse condensed oil sewage of the present invention couples schematic diagram；
In figure: 1- sedimentation device, 2- air-floating apparatus, 3- biofilm reactor, 31- composite gap biological ball, 321- partition,
322- partition, 323- partition, 324- partition, the space 331-, the space 332-, the space 333-, the space 334-, the space 335-, 341-
Aerator, 342- aerator, 35- water inlet, 36- water outlet, 4- aoxidize enhanced biological reactor, the first ozone of 411- hair
Raw device, the first ozone reactor of 412-, 413- the first charcoal reactor, the second ozone generator of 414-, the second ozone of 415-
Reactor, 416- the second charcoal reactor, 5- ultrafiltration apparatus, 6- second level reverse osmosis apparatus, the first reverse osmosis unit of 61-, 62-
Second reverse osmosis unit, 7- continuous electric desalination device.
Specific embodiment
Unless otherwise defined, all technologies used herein and scientific term have and the common skill of fields of the present invention
The normally understood identical meaning of art personnel.When there is a conflict, the definition in this specification shall prevail.
Quality, concentration, temperature, time or other values or parameter are preferred with range, preferred scope or a series of upper limits
When the Range Representation that value and lower preferable values limit, this should be understood as specifically disclosing by any range limit or preferred value
Any pairing with any range lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.
For example, the range of 1-50 is understood to include selected from 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,
19、20、21、22、23、24、25、26、27、28、29、30、31、32、33、34、35、36、37、38、39、40、41、42、43、
44,45,46,47,48,49 or 50 any number, number combinatorics on words or subrange and all between above-mentioned integer
Fractional value, for example, 1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8 and 1.9.It is specific to consider from range about subrange
Interior any endpoint starts " the nested subrange " extended.For example, the nested subrange of exemplary range 1-50 may include
1-10,1-20,1-30 and 1-40 on one direction, or 50-40,50-30,50-20 and 50-10 in another direction.
As shown in Figure 1, a kind of processing method of reuse condensed oil sewage, processing step are as follows: it is heavy to pass sequentially through thick-oil waste water
Falling unit 1, air bearing or Bi-stage air floater 2, biofilm reactor 3, oxidation enhanced biological reactor 4, ultrafiltration apparatus 5, second level
Reverse osmosis unit 6, continuous electric desalination device 7.
Sedimentation device
The first step of the processing method of reuse condensed oil sewage provided by the invention is that condensed oil sewage is passed through sedimentation device.It is existing
There is technology to generally use settling methods, gravitational settling mechanism be according to oil, there are density contrasts for water two-phase, under the effect of gravity,
By certain time, oil water mixture can be automatically separated.The residence time of reasonable the Hydraulic Design and sewage is to influence oil removing effect
Two key factors of rate, to a certain extent, the residence time is longer, and treatment effect is better.Gravitational settling oil removing includes nature
The methods of oil removing, inclined plate oil removing, oil and water separation bygranulation are settled, the leading portion for oil extraction-generated waste water is handled.Its representative processes process is i.e.:
Natural subsidence → coagulant precipitation → filtering.The present invention is not only to be separated from water impurity using the effect of sedimentation device, also prevents
Pollutant disrupting biofilm reactor in sewage.Sedimentation device used in the present invention is preferably coagulant precipitation device.Viscous crude
Not only containing a large amount of cation such as Na in sewage+、K+、Ca2+、Mg2+、Ba2+、Sr2+、Fe2+Deng and anion such as Cl-、SO4 2-、
CO3 2-、HCO3 -Deng, they will affect the buffer capacity, salt content and fouling tendency of condensed oil sewage, but also containing it is a small amount of not
Same heavy metal compound, such as Cr, Cu, Pb, Hg, Ni, Ag and Zn etc..In addition also contain micro radiation in some condensed oil sewages
Property chemical substance such as K40, U238, Th232, Ra226.Radium can be with calcium, barium, the coprecipitated formation carbonate of strontium plasma and sulfate scale.
Inventors have found that magnesium chloride and alkali are added in sedimentation device, the silicon that can be effectively removed in sewage, and it is heavy in the coagulation
Mucoitin sulfate is added in falling unit operational process, can not only can also protect subsequent biomembrane except the impurity in decontaminated water
Reactor and ultrafiltration apparatus make ultrafiltration apparatus that can play its superior function of removing oil removal, while can guarantee subsequent membrane system
System operation.
Air bearing or Bi-stage air floater
Air flotation technology be by it is being passed through in water to be processed or try generate a large amount of micro air bubbles be carrier, when in sewage
Oil droplet and impurity wadding grain and bubble when adhering to each other, just form the grain group that global density is less than water, the buoyancy of grain group is greater than weight
Power and resistance make it float up to the water surface, to complete the water purification that solid is separated with liquid, liquid with liquid with solid, solid in water
Technology.
According to microbubble generate mode, common air floating water purification technology mainly include dissolved air flotation, air-dispersing gas floatation process,
Electrolytic gas float glass process, chemical floatation treatment and other air flotation technologies.
Dissolved air flotation is air to be passed through in water to be allowed to dissolve and reach saturation state under a certain pressure, is then made again
Wastewater pressure reduces suddenly, and the air being at this moment dissolved in the water just is released from water in the form of microbubble, to carry out gas
Floating wastewater treatment.It mainly include pressure air-dissolving method and vacuum air soluble method.Wherein, the former bubble is uniform, easy to operate, oil removal rate compared with
Height, but required equipment is huge, process is complicated.The latter bubble floating is stable, floccule body is not easy to disperse, but the method it is molten it is narrow-minded,
It is not easy to operate, device structure is complicated.
Air-dispersing gas floatation process is compressed air to be passed directly into micropore, diffuser plate, microporous pipe to generate microbubble, or use water pump
Suction hose, hydraulic ejector, quick runner etc. generate microbubble to Aeration in the water.Main includes mechanical air-blowing air bearing, impeller gas
Floating, jet air float.Wherein, jet air float method is to handle the new method of oilfield sewage, and simple process, bubble be small and uniform, oil removing
Rate is higher than turbine air flotation method, but too high to equipment requirement.The bubble that turbine air flotation generates is uneven, in addition to this, molten gas
Amount is big, the residence time is short, at low cost, is more widely applied.
Electrolytic gas float glass process is that certain electric current is passed through into waste water, and Wastewater by Electric solves H2、O2And CO2Equal micro-bubbles absorption
Small suspended matter floats in waste water, to achieve the purpose that water purification.Although the bubble of electrolysis method is small, oil removal rate is high, its power consumption is very
Greatly, higher cost is not suitable for large-scale application.
Pneumatically supported overall process includes adherency, bubble and the oil droplet point of the generation of microbubble, bubble and oil droplet (floccules)
From 3 stages.High performance gas dissolver and release can guarantee to generate required uniform and enough microbubble, bubble with
Oil droplet can good adhesion be the key that air bearing process, it decides air flotation effect, and the Oil-gas Separation stage then needs Slag Scraping Device
Operation.Therefore, the method for good generation bubble is a condition of air-flotation process, if above-mentioned each stage running has very much
Effect, then final air flotation effect and oil removal rate can be very high.
It can be level-one air-floating apparatus for air-floating apparatus of the invention, be also possible to Bi-stage air floater.The level-one
Air-floating apparatus is preferably dissolved air flotation device.The Bi-stage air floater is preferably twin-stage dissolved air flotation device.
Biofilm reactor
Condensed oil sewage is after precipitation reactor, by air bearing or Bi-stage air floater, into biofilm reactor.Biology
Membrane reactor is to add various fillers in the reactor so as to attached growth of microorganisms, belongs to a kind of fixed embrane method, is mainly used for
Remove deliquescent in waste water and colloidal organic pollutant.Biomembrane is by the aerobic bacteria of highly dense, anaerobic bacteria, facultative
The solid dielectric of the ecosystem of the compositions such as bacterium, fungi, protozoan and algae, attachment is known as filtrate or carrier.Biology
Film can be divided into anaerobic layer, aerobic layer, attachment water layer, movement water layer from filtrate outward.The principle of biofilm is that biomembrane is first
Absorption attachment water layer organic matter, is decomposed by the aerobic bacteria of aerobic layer, is entered back into lonely layer and is carried out anaerobic digestion, flows water layer
Then the biomembrane of aging is washed out to grow new biomembrane, and so on to achieve the purpose that purify sewage.Biomembrane reaction
Device, which handles the step of condensed oil sewage, can be divided into the formation of biomembrane, maturation, update and these steps that fall off.Biofilm formation
Precondition be to have the carrier to play a supportive role, also referred to as filler or filtrate.Also need organic matter, N, P and other
Nutriment.Sewage containing nutriment and microbe inoculation is in the surface flow of filler, and after a certain period of time, microbes are attached
Filler surface be proliferated and grow, formed one layer of thin biomembrane.
In the stage of ripeness of biomembrane, on biomembrane by bacterium and various other microorganism groups at the ecosystem and life
Object film has all reached balance to the degradation function of organic matter and has stablized；In this stage, microorganism highly dense, these microorganisms are risen
Removal waste water in organic pollutant effect, form the protozoic food chain of organic pollutant-bacterium-.
The appearance for updating and falling off including anaerobic membrane of biomembrane, the thickening of anaerobic membrane, the update of biomembrane.Anaerobic membrane
Biofilm thickness is continuously increased during appearance, and the Proof deep inside of oxygen translates into anaerobic state.Mature life
Object film is generally all made of anaerobic membrane and aerobic film, and aerobic film is the main place of organic matter degradation, general thickness 2mm.
The metabolite of anaerobism increases during the thickening of anaerobic membrane, and the balance between anaerobic membrane and aerobic film is caused to be destroyed.Gaseous state
The continuous evolution of product reduces adhesive ability of the biomembrane on filler.Eventually become aging biomembrane, purification function compared with
Difference, and it is easy to fall off.Aging film falls off in the renewal process of biomembrane, and newborn biomembrane can be grown again, newborn biomembrane
Purification function it is stronger.
Organic pollutant in oil production waste water in oil field some be to belong to be difficult to biodegradable multiring aromatic hydrocarbon high score
Sub- substance makes some complicated organic matters in waste water be hydrolyzed and ferment under anaerobic bacteria effect, converts using Anaerobic Treatment
Condition is provided for subsequent processing, and remove one so that biodegradability be made to be improved for the simple organic being readily biodegradable
Partial S2-.In the processing of oil field extracted water, preprocessing means of the Anaerobic Treatment often as Aerobic Process for Treatment.
Biofilm reactor of the present invention is MCM fixed bed carrier biofilm reactor.
Filler used in biofilm reactor is MCM micropore composite gap biological ball in the present invention.
MCM technology is in running water by disposal of depth (except COD and ammonia nitrogen), regeneration effluent, high concentration organic sewage processing, hardly possible drop
Excellent effect can be played in the processing of solution organic sewage and sewage water denitrification technique.Composite gap biological filler (MCM) originates from
Japan has developed into a whole set of mature biochemical water treatment technology by technological progress in more than 20 years.In MCM composite gap
There are the big gap between filling ball, the small gap between filling ball medium block and micro- skies inside filling ball medium block in filler
Gap, fluid flow rate is fast in big gap, and air water exchange sufficiently, is suitble to growth of aerobic microorganisms；Gas in micropore in medium block
Water mass transfer can only be realized by diffusion process, be suitble to anaerobe growth.Pollutant and activated sludge under water flow drive
It is exchanged repeatedly in macropore aerobic zone, aperture anoxic zone and micropore anaerobic zone, makes it possible " nitrification, denitrification on the spot ", also make
The biochemical degradation on the spot for obtaining sludge is achieved.
The biofilm reactor that the present invention uses has the advantage that effective microbe can be fixed on medium block by MCM
Surface greatly prolongs the residence time of microorganism, therefore can more effectively screen and acclimated microorganism；There are a variety of in MCM
Dissolution oxygen environment and the surface that can adhere to of multiple-microorganism, make it possible synchronous nitration and denitrification；Microbial species in MCM
Group's specific activity sludge is relatively rich, thus the organic matter of bio-degradable but may not be used in MCM reactor in activated sludge
By biochemical degradation；Since there are microorganism growing environments abundant for MCM reactor, as long as certain microorganism has " food " this
Microorganism may breed in MCM.Therefore, remaining biological sludge will be in the case where gas water flowing drives in MCM system
Those are the microorganism haptoreaction of " food " with sludge, and final remaining biological sludge is degraded.
MCM material can be MCM-41.It is a kind of nano structural material, and having duct is in six side's ordered arrangements, size
Uniformly, aperture can be continuously adjusted within the scope of 2-10nm, large specific surface area the features such as.
The maximum feature that MCM-41 synthesis is different from conventional molecular sieve synthesis is template used dose of difference, traditional zeolite or point
The synthesis of son sieve is using single small organic molecule or metal ion as template, and by taking ZSM-5 as an example, typical template agent used is four
Propyl amine ion, crystal are that the polycondensation by hydrochlorate around template is formed.And the synthesis of MCM-41 is then different, it be with
Molecules surfactant is template, and the alkyl chain of template is typically greater than 10 carbon atoms.Compared with other zeolitic materials,
The skeleton aluminium species thermal stability of MCM-41 is relatively poor, and in roasting process, skeleton aluminium species are fallen off by skeleton as non-bone
Frame aluminium species.It is generally necessary to be modified to it, to increase its catalytic activity.Modified method mainly has:
1. mixing heteroatomic MCM-41 in synthesis skeleton structure, the ion of non-four-coordination is such as in skeleton: Al3+、Cu2+、Fe3 +、Zn2+、Ga3+The anionic surface center of equal generations by proton or other transition metal ions can contend with being formed
Catalytic active center.
2. a series of heterogeneous catalysts suitable for differential responses can be made using the methods of heteropoly acid is supported, such as: B acid
Hydrogen MCM-41；Adulterate L acid type MCM-41；The alkalinity or both sexes MCM-41 of blended metal oxide；Support PW12, SIW12,
The MCM-41 of the heteropoly acids such as PMo12；And support TiO2/SO4 2-、ZrO2/SO4 2-The MCM-41 of equal solid ultra strong acid types.
3.MCM-41 assembling immobilized macromolecular transition metal complex in hole.
MCM material can be MCM-48.MCM-48 molecular sieve belongs to M41S series mesopore molecular sieve, has about 2.6nm left
Right uniform aperture and two sets of mutually independent three-dimensional spiral pore network structures.MCM-48 have good long-range order and
Higher thermal stability.Selective catalysis, macromolecules adsorption separation, nanocluster in terms of all have it is very tempting
Application prospect, can be used as adsorbent, catalysis material and material of main part and come the electron transfer photosensitizer of synthesizing new, semiconductor material
Material, carbon fiber, nonlinear optical material and quantum cluster etc..Because its aperture is big, can be adsorbed well from waste water Hg,
Pb, Ag, Cd plasma radius are big, are not easy by the adsorbed heavy metal ion of micro porous molecular sieve.It is higher in sulfate ion content
In the case where, the chromate and arsenate of low concentration can be removed, can also handle biodegradation of benzene in waste water, toluene and
Volatile organic compound.
MCM micropore composite gap biological ball used in the present invention is by a netted shell of rigid plastics and is filled to wherein
Microporous medium block composition.It can make to exist simultaneously aerobic, anoxic and anaerobism multiple-microorganism system in bioreactor, can be big
Big to improve sewage treating efficiency, the microbial activity of enhancing degradation organic sludge effectively lowers sludge yield.The technology is special
Not Shi Yongyu hardly degraded organic substance removal.
Biofilm reactor of the present invention forms the microcosmic combination of multiple technologies for hardly degraded organic substance dirt
The sewage disposal technology of water treatment technology and multistage coupling technique.
The biofilm reactor uses second level coupling technique.It is two different micro- that two-stage couples biochemical system domestication culture
Biological flora, strengthen the system denitrifying capacity simultaneously, remove bio-degradable organic matter as much as possible.
The schematic diagram of the second level coupling technique of biofilm reactor 3 as shown in Figure 2, the biofilm reactor 3 wrap
Include 35, four partitions of water inlet and water outlet 36.On from water inlet 35 to the direction of water outlet 36, four partitions are denoted as respectively
321,322,323 and 324, wherein 321,322,323 bottom is equipped with the gap that can be passed water through, and the bottom of partition 324 cannot
It passes water through.The height of water inlet 35 is lower than the height of partition 321, and the height of water outlet 36 is lower than the height of partition 324.Four
Biofilm reactor 3 is separated into five spaces by partition, on 36 direction of water outlet from water inlet 35, five spaces point
It Wei 331,332,333,334 and 335, wherein it is all filled with composite gap biological ball 31 in space 331,332,333 and 334,
The bottom in space 332 and space 334 is respectively arranged with aerator 341 and 342, when the biofilm reactor 3 work, institute
It states aerator 341 and 342 and generates gas, so that the bottom in space 332 and space 334 is generated negative pressure, promote space 331 and space
Liquid in 333 passes through the gap inflow space 332 of 322 bottom of partition 321 and partition respectively, similarly, the liquid in space 333
By the gap inflow space 334 of 323 bottom of partition, the liquid level in turn resulting in space 332 is higher than space 331 and space 333
Liquid level, space 334 liquid level be higher than space 333 liquid level.When the liquid level in space 332 is higher than partition 321 and partition
When 322, the water in space 332 is then flowed into space 331 and space 333 from top, and similarly, the water in space 334 is then from upper
Portion is flowed into space 332 and space 335, is thus completed the circulation of water in space 331,332,333 and 334, is flowed into space
335 water flows out biofilm reactor via water outlet 36.
Aoxidize enhanced biological reactor
Through biofilm reactor treated condensed oil sewage enters oxidation enhanced biological reactor.Oxygen used in the present invention
Change enhanced biological reactor and share 1-3 set, every set oxidation enhanced biological reactor includes 1 set of ozone reactor and 1 set of charcoal
Reactor.
The number of the oxidation enhanced biological reactor can specifically be enumerated are as follows: 1,2,3.Aoxidize enhanced biological reactor
In, ozone reactor and the series connection of charcoal reactor.
Contain temporary noxious material in oil extraction waste water, toxic action played to microorganism, while its high temperature and high salt
Water quality characteristics are suppressed the growth of microorganism.At this point, being handled with general biological method, degradation rate is slower, microorganism
One section of longer time is needed to adapt to.Efficient dominant microflora is tamed in culture, is to realize that height contains using oxidation enhanced biological technology
Salt, oil extraction waste water biological treatment difficult to degrade effective way.
As shown in Figure 1, oxidation enhanced biological reactor includes ozone reactor and charcoal reactor.First ozone occurs
The ozone that device 411 generates enters pipeline and the mixture of water enters the first ozone reactor 412, through the first ozone reactor
412 treated water enter the first charcoal reactor 413, and the water after the first charcoal reactor 413 is processed enters the
Two ozone reactors 415.Water after the second ozone reactor 415 is processed enters the second charcoal reactor 416, wherein
First ozone reactor 412, the first charcoal reactor 413, the second ozone reactor 415, the second charcoal reactor 416 according to
Secondary series connection.Operative practice proves, in the case where ozone amount adds constant total quantity, because of the first ozone reactor 412, first
Charcoal reactor 413, the second ozone reactor 415, the second charcoal reactor 416 are sequentially connected in series, and utilize ozone
Rate improves 15%-20%.
Ozone decomposes in water generates nascent oxygen atom with strong electrophilic or protophilia, forms tool in water
There is the hydroxyl radical free radical of strong oxidation, hydroxyl radical free radical current potential is high, is 2.8V, respond is strong, and speed is fast, and it is anti-can to cause chain
It answers, many organic matters is made thoroughly to degrade.
Ozonisation increases hydrogen ion in water, is formed in more hydrogen bonds in activated carbon surface and electronegativity, anion are logical
The resistance for crossing active carbon hole substantially reduces, and reduces diffusional resistance when polluter is adsorbed, and improves the suction of active carbon
Attached ability.
Deliquescent organic matter can be resolved into the organic matter of carbon dioxide and water or non-dissolution by biodegradation process,
The benign cycle for forming adsorption-desorption, in a disguised form improves adsorption capacity.Improvement and stabilization using biological oxidation characteristic to water quality
Effect, improves the service life of active carbon, reduces processing cost.
Ultrafiltration apparatus
Condensed oil sewage after aoxidizing enhanced biological reactor for treatment enters ultrafiltration apparatus.Ultrafiltration dress used in the present invention
It sets and is mainly used for further going larger molecular organics and bacterium etc. in water removal, guarantee delivery turbidity, while providing for follow-up equipment
It ensures.
Ultra-filtration and separation is the membrane separating process using pressure difference as motive force, and ultrafiltration membrane allows solvent particles and small molecule saturating
It crosses, and macromolecular and particle cannot penetrate.Typical Ultrafiltration Membrane can retain particle between 0.002-0.1 μm and miscellaneous
Matter allows small-molecule substance and inorganic salts etc. to pass through, and stops colloid, protein, microorganism and larger molecular organics.
Existing hyperfiltration technique disposing polluted water in oil research primarily directed to low permeability oil field reinjected water processing.Ultrafiltration
Technology is industrially difficult to the reason of large-scale application and is, first is that the pretreatment oil removing process of film cannot be guaranteed deoiling effect,
Oil content of intaking is high, and fouling membrane is serious, and flux decline is fast, and how most of research now concentrates on in the cleaning of film, and
It is less to the pretreating process research of film；Second is that the cleaning and regeneration of film is difficult, since each oil field water quality difference is big, thus cleaning side
Method is different.
Ultrafiltration reactor used in the present invention is external-compression type ultrafiltration reactor.
Ultrafiltration membrane material is Kynoar in ultrafiltration reactor used in the present invention, and film wire internal diameter is 0.5-1.0mm,
Outer diameter is 1.0-2.0mm, and pore size filter is 0.01-1.00 μm.
Ultrafiltration membrane after specially treated has excellent hydrophilic, and oil resistant pollution capacity is strong；Its biggish internal diameter and outer
Pressure type design also improves its resistance tocrocking；It retains molecule rate height and makes its producing water water quality preferable, makees to reverse osmosis protection
With more excellent.
Second level reverse osmosis apparatus
Through ultrafiltration apparatus, treated that condensed oil sewage enters second level reverse osmosis apparatus.Two-pass reverse osmosis of the present invention
Membrane material in device has the characteristics such as selection low pressure, resistance tocrocking, salt tolerance.
The medicine feeding hole that antisludging agent is added is equipped on the pipeline of connection ultrafiltration apparatus and second level reverse osmosis apparatus.
The membrane material of existing reverse osmosis unit develops to poly- with surface from initial stage single cellulose acetate anisotropic membrane
Crosslinked aromatic polyamide composite membrane made of conjunction technology.Operating pressure also extends to high-pressure membrane, middle press mold, low-pressure membrane and ultralow
Press mold.Form this year of membrane module also shows diversified trend.In addition to traditional hollow fiber form, rolling, tubular type and
Other than plate and frame, and develop revolution flat membrane, dipping flat membrane etc..
As shown in Figure 1, second level reverse osmosis apparatus 6 includes the first reverse osmosis unit 61 and the second reverse osmosis unit 62, wherein
First reverse osmosis unit 61 and the second reverse osmosis unit 62 are to be connected in series, and water flows into after the processing of the first reverse osmosis unit 61
Second reverse osmosis unit 62 is further processed, and mainly removes various ions in water removal.
Reverse osmosis is the water treatment technology using membrane separating, and principle is under pressure, through reverse osmosis membrane
Water becomes pure water；Impurity in water is retained and is carried over by reverse osmosis membrane.Reverse osmosis technology can be effectively removed molten in water
Solve the impurity such as salt, colloid, bacterium, virus, bacterial endotoxin and most of organic matter.
Two-pass reverse osmosis, which is exactly that the first order is reverse osmosis, to be pumped by through after the adjusted pH value of water, then by the second level into the
Two-stage reverse osmosis system processing, to obtain the process through water.Reverse osmosis technology is just to grow up in recent years in China
A modern high technology.Reverse osmosis is exactly to apply the pressure for being greater than osmotic pressure to solution, makes water through special half
Permeable membrane is separated from solution.Because this process and phenomenon of osmosis are on the contrary, referred to as reverse osmosis.By various materials
Different osmotic, so that it may the reverse osmosis greater than osmotic pressure be used to certain solution, reach and solution is separated, is mentioned
The purpose for taking, purifying and being concentrated.
Reverse osmosis unit, the ion range in primarily discrete solution, it is without heating, more without phase transition process, therefore
Than traditional method, low energy consumption.With reverse osmosis unit, industrial water is handled, does not consume a large amount of soda acids, without secondary pollution, its fortune
Row expense is also relatively low.
Continuous electric desalination device
Specifically, EDI technology by anion-cation exchange resin be filled between anion and cation exchange membrane formed EDI it is mono-
Member, anion-exchange membrane are alternately arranged with cation-exchange membrane, along the anion-exchange membrane and adjacent cation of direction of an electric field
The space that anion-cation exchange resin is filled between exchange membrane forms freshwater room, forms concentrated water room between adjacent freshwater room.
When sewage flows through freshwater room, ion exchange occurs for ion and ion exchange resin in raw water.In direct current
Under the action of electric field, the ion transfer channels that the zwitterion on resin is formed by ion exchange resin are moved to the two poles of the earth respectively
It moves, cation and anion enter concentrated water room by cation-exchange membrane and anion-exchange membrane respectively and removed.When
EDI running current overstep the extreme limit electric current when, the boundary layer near film and resin polarizes, hydrolytic dissociation, and generates OH-And H+.This
A little ions, it is most of to hand over the zwitterion made in freshwater room in addition to being migrated to concentrated water room except some participates in load current
Agent regeneration is changed, its exchange capacity is kept.As it can be seen that the selective migration of ion and resin under ion exchange, DC electric field
Under the collective effect of electrically regenerative three processes, EDI realizes the company to low concentration solution under conditions of not needing chemical regeneration
Continuous advanced desalination process.
In addition to inorganic pollution in condensed oil sewage, there are also a large amount of organic pollutants.Naturally occurring has in condensed oil sewage
Machine compound is broadly divided into four classes, i.e. aliphatic hydrocarbon and aphthenic acids, aromatic hydrocarbon, polar compound and fatty acid.In different oil fields,
Relative amount and the molecular weight distribution variation of these compounds are very greatly.
The content range of aliphatic hydrocarbon and cycloalkane is wider in condensed oil sewage, carbon atom lower than 5 aliphatic hydrocarbon very soluble in
It is main volatile organic carbon in water.Arene compound and aliphatic hydrocarbon compound constitute so-called carbon in condensed oil sewage
Hydrogen content, and polar compound and fatty acid cpds are commonly referred to as other organic matters.Arene compound especially benzene, first
Benzene, ethylbenzene and naphthalene, they are dissolved in the water, and constitute the soluble compounds in condensed oil sewage.
Polar compound such as phenols is generally soluble in water, but usual content is not high in crude oil or condensate liquid, therefore viscous crude is dirty
Polar compound concentration in water will be generally below aromatic hydrocarbon content.Fatty acid especially acetic acid is highly soluble in water, therefore viscous crude
Fatty acid (about 1000mg/L) in sewage containing higher concentration.
A large amount of chemical agent is added in oil recovery process, these chemical agents play an important role, such as: viscosity reduction,
Inhibition, scale inhibition, anti-foam, wax control, sterilization, demulsification, coagulation, dehydration.Some chemical agents are neat compounds such as methanol, in addition one
A little is to be dissolved in solvent or molten altogether surfactant.According to Comparative dissolution of these chemical agents in oil, gas and water three-phase
Degree, different chemical agents will all enter oil, gas and water three-phase, and only its concentration is different.Surfactant can enter
Any liquid phase, but some surfactants will be consumed in oil recovery process.Therefore these chemical agents of accurate evaluation are wanted
Number amount and type are extremely difficult.
Corrosion inhibiter in condensed oil sewage is mainly amide compound and imidazolinium compounds, and antisludging agent is mainly Phosphation
It closes object and phosphate cpd, demulsifier is mainly that alkoxy resin, poly- hexylene glycol rouge and alkylbenzene sulfonate, polyelectrolyte are main
For polyamide compound.These pollutants are very difficult to remove upon mixing.
Condensed oil sewage large viscosity, grease density contrast be small, emulsification is serious, water temperature is high, water quality and quantity variation greatly, processing difficulty
Greatly, the development and exploitation of high efficiency sewage clarifier are basis and the key of condensed oil sewage advanced treating.Strengthen leading portion deoiling effect, subtracts
The pressure of light back segment filtration system, keeps entire technology reasonable, compact and efficient；The homogeneous of sewage must be fully considered simultaneously
It measures, water is avoided to cause to impact to entire process flow.
Condensed oil sewage processing technological flow be exactly for its essence oil removing, oil removal, except hardness, except silica and
Except the optimum organization of the techniques such as COD.Oil removing process mainly includes coagulating sedimentation, air bearing etc., removes the suspended oil of the overwhelming majority, is
Filtration system, melded system and the biological treatment system of back segment create favorable conditions.If leading portion deoiling effect is bad, even if after
Section filtration system is very long, and viscous crude also can be gradually adsorbed on the filtrate in each filter, cause filtrate is hardened, filtering velocity reduces,
Phenomena such as effluent quality degenerates accelerates the failure of filtrate, keeps entire processing system in paralyzed state.Although taking increasing
Back washing strength extends backwashing time, increases surface washing and adds the technical measures such as chemical, but cannot be from
Fundamentally solve the problems, such as that backwash is halfway.In actual production process, it has to often replace filtrate, be brought to production management
Trouble., whereas if leading portion deoiling effect is good, into the mainly suspended matter of back segment filtration system, then filtration system is just
Its superior function of removing oil removal can be played, while last part technology process can be simplified, it is ensured that water outlet reach injection boiler and
The water standard of outlet.
Common chemical agent has in terms of condensed oil sewage processing: organic and inorganic two class.Organically mainly there is polypropylene
Amides, rp demulsification class etc.；Inorganic mainly has aluminium polychloride, Polyferric Sulfate class etc..
Thickened oil recovery mostly uses greatly steam drive or steam soak mode, this just necessarily has a large amount of oily wastewaters to generate.Simultaneously
Thermal recovery mode needs a large amount of clear water resource, and in China freshwater resources water-deficient area, water resource is nervous for oil field many places.Using fresh water
It carries out thermal recovery and deposits problem both ways, first is that freshwater source and fresh water cost issues, second is that thermal recovery block output water is due to that cannot return
With the problem of how processing.
Viscous crude steam injection development, Produced Liquid after dehydration, sewage outlet there are several types of: 1. are adjusted to thin oil block
As effective water filling water source re-injection oil reservoir.But this mode can only spend a part, because thin oil block also produces oily wastewater, especially
It is latter period of oilfield development, self-produced sewage is more.2. injecting useless stratum, i.e., invalid re-injection, to prevent to ground pollution.It is this go out
Though road can be with respite sewage problem of outlet, there is very big problem: the useless stratum of one is limited, secondly return water consumption is big
Measure electric energy.3. qualified discharge after processing.Country has stringent limitation to wastewater disposition total amount, and collects outlet to wastewater disposition
Expense.Even if after sewage treatment it is up to standard can not whole outlets, and handle and need considerable handling.4. being back to after processing
Gas injection development thermal recovery boiler, reuse on the spot after handling its condensed oil sewage.This is the effective way for making waste water reclaiming, neither
Ambient enviroment is polluted, and the thermal energy of condensed oil sewage can be made full use of.Not only fresh-water-saving resource, but also save thermal energy.
Currently, condensed oil sewage is after advanced treating, the standard of Ying Fuhe table 1.
Table 1
Standard through method provided by the invention treated water can meet condensed oil sewage reuse.
The present invention provides a kind of processing method of reuse condensed oil sewage, which is characterized in that processing step are as follows: by thick-oil waste water
Pass sequentially through sedimentation device, air bearing or Bi-stage air floater, biofilm reactor, oxidation enhanced biological reactor, ultrafiltration apparatus,
Second level reverse osmosis apparatus, continuous electric desalination device, the Bi-stage air floater are twin-stage dissolved air flotation device.
In some embodiments, the sedimentation device is coagulant precipitation device.
In some embodiments, filler used in the biofilm reactor is MCM micropore composite gap biological ball.
In some embodiments, the MCM micropore composite gap biological ball by a netted shell of rigid plastics and fills
Fill out microporous medium block composition therein.
In some embodiments, the biofilm reactor uses second level coupling technique.
In some embodiments, 4 partitions are provided in the biofilm reactor, from water inlet to water outlet
On direction, the 1st, 2,3 partition bottom is provided with the gap that can be passed water through, and the bottom of the 4th partition cannot pass water through.
In some embodiments, the biofilm reactor is separated into five spaces by 4 partitions, from water inlet to
On the direction of water outlet, the bottom in second space and the 4th space is provided with aerator.
In some embodiments, the oxidation enhanced biological reactor shares 1-3 set, every set oxidation enhanced biological reaction
Device includes 1 set of ozone reactor and 1 set of charcoal reactor.
In some embodiments, the ultrafiltration apparatus is external-compression type ultrafiltration apparatus.
In some embodiments, the film wire internal diameter of ultrafiltration membrane material is 0.5-1.0mm in the ultrafiltration apparatus, and outer diameter is
1.0-2.0mm。
Embodiment 1
Such as Fig. 1, a kind of processing method of reuse condensed oil sewage, processing step are as follows: thick-oil waste water is passed sequentially through sedimentation dress
It sets, is Bi-stage air floater, biofilm reactor, oxidation enhanced biological reactor, ultrafiltration apparatus, second level reverse osmosis apparatus, continuous
Electric demineralizer, the Bi-stage air floater are twin-stage dissolved air flotation device.The sedimentation device is coagulant precipitation device.It is described
Biofilm reactor is MCM fixed bed carrier biofilm reactor.Filler used in the biofilm reactor is that MCM micropore is compound
Gap biological ball, MCM-48.The MCM micropore composite gap biological ball is by a netted shell of rigid plastics and is filled to wherein
Microporous medium block composition.Aperture is 2.6nm.The biofilm reactor uses second level coupling technique.The biomembrane reaction
4 partitions are provided in device, on the direction from water inlet to water outlet, the 1st, 2,3 partition bottom, which is provided with, can make water logical
It crosses to gap, the bottom of the 4th partition cannot pass water through.The biofilm reactor is separated into five spaces by 4 partitions,
On the direction from water inlet to water outlet, the bottom in second space and the 4th space is provided with aerator.The oxidation is strong
Change bioreactor and share 2 sets, every set oxidation enhanced biological reactor includes 1 set of ozone reactor and 1 set of charcoal reactor.
The ultrafiltration apparatus is external-compression type ultrafiltration apparatus.Ultrafiltration membrane material is Kynoar, and film wire internal diameter is 0.5mm, and outer diameter is
1.0mm.The medicine feeding hole that antisludging agent is added is equipped on the pipeline of connection ultrafiltration apparatus and second level reverse osmosis apparatus.
Embodiment 2
Such as Fig. 1, a kind of processing method of reuse condensed oil sewage, processing step are as follows: thick-oil waste water is passed sequentially through sedimentation dress
It sets, is Bi-stage air floater, biofilm reactor, oxidation enhanced biological reactor, ultrafiltration apparatus, second level reverse osmosis apparatus, continuous
Electric demineralizer, the Bi-stage air floater are twin-stage dissolved air flotation device.The sedimentation device is coagulant precipitation device.It is described
Biofilm reactor is MCM fixed bed carrier biofilm reactor.Filler used in the biofilm reactor is that MCM micropore is compound
Gap biological ball, MCM-48.The MCM micropore composite gap biological ball is by a netted shell of rigid plastics and is filled to wherein
Microporous medium block composition.Aperture is 2.6nm.The biofilm reactor uses second level coupling technique.The biomembrane reaction
4 partitions are provided in device, on the direction from water inlet to water outlet, the 1st, 2,3 partition bottom, which is provided with, can make water logical
It crosses to gap, the bottom of the 4th partition cannot pass water through.The biofilm reactor is separated into five spaces by 4 partitions,
On the direction from water inlet to water outlet, the bottom in second space and the 4th space is provided with aerator.The oxidation is strong
Change bioreactor and share 2 sets, every set oxidation enhanced biological reactor includes 1 set of ozone reactor and 1 set of charcoal reactor.
The ultrafiltration apparatus is external-compression type ultrafiltration apparatus.Ultrafiltration membrane material is Kynoar, and film wire internal diameter is 0.5mm, and outer diameter is
1.0mm.The medicine feeding hole that antisludging agent is added is equipped on the pipeline of connection ultrafiltration apparatus and second level reverse osmosis apparatus.
Embodiment 3
Such as Fig. 1, a kind of processing method of reuse condensed oil sewage, processing step are as follows: thick-oil waste water is passed sequentially through sedimentation dress
It sets, is Bi-stage air floater, biofilm reactor, oxidation enhanced biological reactor, ultrafiltration apparatus, second level reverse osmosis apparatus, continuous
Electric demineralizer, the Bi-stage air floater are twin-stage dissolved air flotation device.The sedimentation device is coagulant precipitation device.It is described
Biofilm reactor is MCM fixed bed carrier biofilm reactor.Filler used in the biofilm reactor is that MCM micropore is compound
Gap biological ball, MCM-50.The MCM micropore composite gap biological ball is by a netted shell of rigid plastics and is filled to wherein
Microporous medium block composition.Aperture is 2.6nm.The biofilm reactor uses second level coupling technique.The biomembrane reaction
4 partitions are provided in device, on the direction from water inlet to water outlet, the 1st, 2,3 partition bottom, which is provided with, can make water logical
It crosses to gap, the bottom of the 4th partition cannot pass water through.The biofilm reactor is separated into five spaces by 4 partitions,
On the direction from water inlet to water outlet, the bottom in second space and the 4th space is provided with aerator.The oxidation is strong
Change bioreactor and share 2 sets, every set oxidation enhanced biological reactor includes 1 set of ozone reactor and 1 set of charcoal reactor.
The ultrafiltration apparatus is external-compression type ultrafiltration apparatus.Ultrafiltration membrane material is Kynoar, and film wire internal diameter is 0.5mm, and outer diameter is
1.0mm.The medicine feeding hole that antisludging agent is added is equipped on the pipeline of connection ultrafiltration apparatus and second level reverse osmosis apparatus.
Embodiment 4
Such as Fig. 1, a kind of processing method of reuse condensed oil sewage, processing step are as follows: thick-oil waste water is passed sequentially through sedimentation dress
It sets, is Bi-stage air floater, biofilm reactor, oxidation enhanced biological reactor, ultrafiltration apparatus, second level reverse osmosis apparatus, continuous
Electric demineralizer, the Bi-stage air floater are twin-stage dissolved air flotation device.The sedimentation device is coagulant precipitation device.Institute
It states in coagulating sedimentation reactor operational process and mucoitin sulfate is added.The biofilm reactor is MCM fixed bed filler biological
Membrane reactor.Filler used in the biofilm reactor is MCM micropore composite gap biological ball, MCM-48.The MCM micropore is multiple
Gap biological ball is closed by a netted shell of rigid plastics and is filled to microporous medium block therein and forms.Aperture is 2.6nm.Institute
Biofilm reactor is stated using second level coupling technique.4 partitions are provided in the biofilm reactor, from water inlet to out
On the direction at the mouth of a river, the 1st, 2,3 partition bottom is provided with and can pass water through to gap, and the bottom of the 4th partition cannot make water
Pass through.The biofilm reactor is separated into five spaces, on the direction from water inlet to water outlet, second by 4 partitions
The bottom in space and the 4th space is provided with aerator.The oxidation enhanced biological reactor shares 2 sets, and every set oxidation is strengthened
Bioreactor includes 1 set of ozone reactor and 1 set of charcoal reactor.The ultrafiltration apparatus is external-compression type ultrafiltration apparatus.It is super
Filter membrane material is Kynoar, and film wire internal diameter is 0.5mm, outer diameter 1.0mm.In connection ultrafiltration apparatus and two-pass reverse osmosis dress
The pipeline set is equipped with the medicine feeding hole that antisludging agent is added.
Embodiment 5
A kind of processing method of reuse condensed oil sewage, processing step are as follows: thick-oil waste water is passed sequentially through into sedimentation device, air bearing
Device, biofilm reactor, oxidation enhanced biological reactor, ultrafiltration apparatus, second level reverse osmosis apparatus, continuous electric desalination device.
The sedimentation device is coagulant precipitation device, and the air-floating apparatus is dissolved air flotation device.The biofilm reactor is solid for MCM
Fixed bed carrier biofilm reactor.Filler used in the biofilm reactor is MCM micropore composite gap biological ball, MCM-48.
The MCM micropore composite gap biological ball is by a netted shell of rigid plastics and is filled to microporous medium block therein and forms.
Aperture is 2.6nm.The biofilm reactor uses second level coupling technique.4 partitions are provided in the biofilm reactor,
On the direction from water inlet to water outlet, the 1st, 2,3 partition bottom is provided with and can pass water through to gap, the 4th partition
Bottom cannot pass water through.The biofilm reactor is separated into five spaces by 4 partitions, from water inlet to water outlet
Direction on, the bottom in second space and the 4th space is provided with aerator.The oxidation enhanced biological reactor shares 1
Set, every set oxidation enhanced biological reactor includes 1 set of ozone reactor and 1 set of charcoal reactor.The ultrafiltration apparatus is outer
Pressure type ultrafiltration apparatus.Ultrafiltration membrane material is Kynoar, and film wire internal diameter is 0.5mm, outer diameter 2.0mm.In connection ultrafiltration dress
Set the medicine feeding hole for being equipped with the pipeline of second level reverse osmosis apparatus and antisludging agent being added.
Embodiment 6
A kind of processing method of reuse condensed oil sewage, processing step are as follows: thick-oil waste water is passed sequentially through into sedimentation device, twin-stage
Air-floating apparatus, biofilm reactor, oxidation enhanced biological reactor, ultrafiltration apparatus, second level reverse osmosis apparatus, continuous electric desalination dress
It sets, the Bi-stage air floater is twin-stage dissolved air flotation device.The sedimentation device is coagulant precipitation device.The biomembrane is anti-
Answering device is MCM fixed bed carrier biofilm reactor.Filler used in the biofilm reactor is MCM micropore composite gap biological
Ball, MCM-48.The MCM micropore composite gap biological ball is by a netted shell of rigid plastics and is filled to micropore Jie therein
Mass composition.Aperture is 2.6nm.The biofilm reactor uses second level coupling technique.It is arranged in the biofilm reactor
There are 4 partitions, on the direction from water inlet to water outlet, the 1st, 2,3 partition bottom is provided with and can pass water through to gap,
The bottom of 4th partition cannot pass water through.The biofilm reactor is separated into five spaces by 4 partitions, from entering water
On mouth to the direction of water outlet, the bottom in second space and the 4th space is provided with aerator.The oxidation enhanced biological is anti-
Device is answered to share 3 sets, every set oxidation enhanced biological reactor includes 1 set of ozone reactor and 1 set of charcoal reactor.The ultrafiltration
Device is external-compression type ultrafiltration apparatus.Ultrafiltration membrane material is Kynoar, and film wire internal diameter is 1.0mm, outer diameter 1.0mm.Even
The pipeline for connecing ultrafiltration apparatus and second level reverse osmosis apparatus is equipped with the medicine feeding hole that antisludging agent is added.
Evaluation method
1. hardness
Using the measurement of SP510 online hardness analysis instrument through embodiment 1-4 treated sewage.
2. iron
According to the measurement of HG/T 4327 through embodiment 1-4 treated sewage.
3. silica
Using the measurement of CM-04-32 silica water quality analyzer through embodiment 1-4 treated sewage.
4.pH value
Using the measurement of pH6000 desk-top PH measuring instrument through embodiment 1-4 treated sewage.
5. oil
According to GB/T1576 measurement through embodiment 1-4 treated sewage.
6. suspended matter
According to the measurement of GB/T 11901 through embodiment 1-4 treated sewage.
Testing result is shown in Table 2.
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Hardness (μm ol/L) | 0.05 | 0.05 | 0.04 | 0 |
| Iron (μ g/L) | 2 | 4 | 2 | 0 |
| Silica (μ g/L) | 10 | 25 | 20 | 2 |
| PH value (25 DEG C) | 10.5 | 9.5 | 8.2 | 9.1 |
| Oily (mg/L) | 0.2 | 0.1 | 0.2 | 0 |
| Suspended matter (mg/L) | 0.5 | 1 | 0.8 | 0 |
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
The equivalent changes and modifications that content is done according to the present invention are encompassed by the scope of the patents of the invention.
Claims (6)
1. a kind of processing method of reuse condensed oil sewage, which is characterized in that processing step are as follows: thick-oil waste water is passed sequentially through sedimentation
Device, air bearing or Bi-stage air floater, biofilm reactor, oxidation enhanced biological reactor, ultrafiltration apparatus, two-pass reverse osmosis dress
It sets, continuous electric desalination device, the Bi-stage air floater is twin-stage dissolved air flotation device；
Wherein, the sedimentation device is coagulant precipitation device；Mucoitin sulfate is added in the coagulant precipitation device operational process；
Filler used in the biofilm reactor is MCM micropore composite gap biological ball；
The ultrafiltration apparatus is external-compression type ultrafiltration apparatus；The film wire internal diameter of ultrafiltration membrane material is 0.5- in the ultrafiltration apparatus
1.0mm, outer diameter 1.0-2.0mm.
2. a kind of processing method of reuse condensed oil sewage as described in claim 1, which is characterized in that the MCM micropore is compound
Gap biological ball is by a netted shell of rigid plastics and is filled to microporous medium block therein and forms.
3. a kind of processing method of reuse condensed oil sewage as described in claim 1, which is characterized in that the biofilm reactor
Using second level coupling technique.
4. a kind of processing method of reuse condensed oil sewage as claimed in claim 3, which is characterized in that the biofilm reactor
In be provided with 4 partitions, on the direction from water inlet to water outlet, the 1st, 2,3 partition bottom is provided with and can pass water through
Gap, the bottom of the 4th partition cannot pass water through.
5. a kind of processing method of reuse condensed oil sewage as claimed in claim 4, which is characterized in that the biofilm reactor
Five spaces are separated by 4 partitions, on the direction from water inlet to water outlet, the bottom in second space and the 4th space is set
It is equipped with aerator.
6. a kind of processing method of reuse condensed oil sewage as described in claim 1, which is characterized in that the oxidation enhanced biological
Reactor shares 1-3 set, and every set oxidation enhanced biological reactor includes 1 set of ozone reactor and 1 set of charcoal reactor.
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| CN109081531A (en) * | 2018-10-23 | 2018-12-25 | 广东欧沃环境科技有限公司 | A kind of oiliness sewage treatment device |
| CN111170559B (en) * | 2020-01-07 | 2022-02-18 | 无锡市远洲环保科技有限公司 | Integrated sewage treatment equipment |
| CN115432890B (en) * | 2022-09-21 | 2024-01-23 | 无锡市道格环保科技有限公司 | Treatment device and method for reducing pollutant emission in chromium-containing metal ion wastewater |
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