CN109502933A - A kind of processing method and system containing polyacrylamide waste water - Google Patents
A kind of processing method and system containing polyacrylamide waste water Download PDFInfo
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- CN109502933A CN109502933A CN201910038075.1A CN201910038075A CN109502933A CN 109502933 A CN109502933 A CN 109502933A CN 201910038075 A CN201910038075 A CN 201910038075A CN 109502933 A CN109502933 A CN 109502933A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
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- Water Treatment By Sorption (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention provides a kind of processing method and processing system containing polyacrylamide waste water, wherein processing method mainly comprises the steps that 1) biological load particle is put into waste water and impregnates, and adsorbs polyacrylamide and indigenous microorganism in waste water；2) trace element solution is added into the biological load particle that step 1) obtains, the indigenous microorganism is promoted to carry out anaerobic degradation to polyacrylamide；3) to active carbon obtained in step 2) and biological sewage ozone oxidation, processing is completed.System includes the reduction apparatus of sequentially connected anaerobic degradation device, ozone-oxidizing device and discharging device and biological load particle.The present invention realizes the combination of bioanalysis and physical absorption and chemical reaction, it reduces polyacrylamide waste water and is passed directly into the probability that reactor blocks, destruction of the polyacrylamide to ecology can fundamentally be reduced, the present invention reuses active carbon, reach green economy, energy-saving and environment-friendly treatment effect.
Description
Technical field
The present invention relates to oil field wastewater treatment field more particularly to it is a kind of utilize bioanalysis, and combine physics and chemistry at
Science and engineering skill, to the method and system handled containing polyacrylamide waste water.
Background technique
In oil recovery industry, usually call primary oil recovery petroleum is exploited using oil layer energy；Water, gas are injected to oil reservoir,
It is known as secondary oil recovery to oil reservoir supplement energy exploitation petroleum；And it is mutual to improve oil, gas and water and rock with the substance of chemistry
Performance, produce more petroleum, referred to as tertiary oil recovery.In the tertiary oil recovery method in oil field, polymer displacement of reservoir oil tech is accounted for
There is consequence.In all polymer, polyacrylamide is due to high relative molecular mass and good aqueous solubility
Advantage and make with the most use.Polyacrylamide dissolves in the viscosity that water latter aspect increases displacing fluid, reduces oil and water mobility ratio, finally
Improve sweep efficiency；On the other hand, displacing fluid is also added in the flow resistance at oil reservoir Thief zone position, makes plane flowing more
Uniformly, and then recovery ratio is improved.
But in above-mentioned oil recovery process, the polymer output water largely containing a certain concentration and the certain viscosity of reservation is also corresponding
It generates, the toxicity containing residual monomer acrylamide (AM) in polyacrylamide waste water is very big, will in the environment such as direct emission
It builds up, endangers environment, the re-injection simultaneously containing polyacrylamide waste water causes near wellbore zone oil layer pollution, on water injection pressure
The problem of liter, difficult water injection, oil production decline, polymer displacement of reservoir oil causes, gets worse.How to handle, is using these output waters
The problem of people's growing interest.
Currently, mainly having bioanalysis, chemical method, physical method and two for the processing method containing polyacrylamide waste water
Kind or a variety of methods are used in mixed way.(1) though bioanalysis economic serviceability is strong, environmental protection and energy saving without secondary toxic action, low efficiency,
Time-consuming.(2) chemical method advantage is high-efficient, but because energy consumption is high, be also easy to produce environmentally harmful intermediate or product due to do not have
It is widely used.(3) the effects of physical method only carries out simple sedimentation, not substantive degrades to pollutant.
Relative maturity, the core technology of bioanalysis are activated sludge process and biomembrane to present sewage treatment process
Method, i.e., using in bioreactor activated sludge or biomembrane decompose the organic matter in sewage.Therefore, do not giving up biology
While method is economic and environment-friendly, in conjunction with the fast chemical method of degradation speed and physical method, develop a kind of new containing poly- wastewater treatment
Technology is current and research in the future main contents and the main direction of development.
Existing containing most of polyacrylamide wastewater treatment patent is that waste water is directly passed directly to biological respinse
In device, and the concentration of Polyacrylamide in Wastewater is high, and viscosity is big, poor fluidity, obstruction bioreactor is very easy to, daily
Many technologies are brought to perplex in operation.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of deep treatment method containing polyacrylamide waste water, and this method is logical
Cross the physical absorption in conjunction with active carbon；Anaerobic degradation with degradation function microorganism and to residual contamination in waste water after degradation
The ozone oxidation of object realizes the combination of bioanalysis and physical absorption and chemical reaction, effectively reduces polyacrylamide
Waste water is passed directly into the probability that reactor blocks, and destruction of the polyacrylamide to ecology can be fundamentally reduced, through locating
95% or more pollutant is effectively degraded in waste water after reason.This method can also be to the hole knot of active carbon after degradation
Structure carries out recovery reduction, reuses to active carbon, greatly reduces the processing cost of waste water, reaches green economy, section
The treatment effect of energy environmental protection.
The second object of the present invention is to provide a kind of system for carrying out wastewater treatment using the above method, passes through this system
It can make to be adsorbed in the hole of active carbon containing polyacrylamide waste water, and then waste water is made by biodegrade, chemical oxidation
It is effectively addressed, realizes a kind of continuous, complete, efficient treatment process, finally go back recoverable after reduction treatment
Active carbon, environmentally protective while greatly reducing cost for wastewater treatment, economic benefit is obvious, useless containing polyacrylamide
The significance that there is water treatment field technique to open up.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
A kind of processing method containing polyacrylamide waste water, mainly comprises the steps that
1) biological load particle is put into waste water and is impregnated, adsorb the polyacrylamide and indigenous microorganism in waste water；
2) trace element solution is added into the biological load particle that step 1) obtains, promotes the indigenous microorganism to poly-
Acrylamide carries out anaerobic degradation；
3) to active carbon obtained in step 2) and biological sewage ozone oxidation, processing is completed.
Further, as a kind of enforceable scheme, aperture on biological load particle described in step 1) be nanometer extremely
Micron level, dipping adsorption time control is in 24-48h.
Further, as a kind of enforceable scheme, the hydraulic detention time of anaerobic degradation is controlled in 6- in step 2)
48h, time control are controlled in 10-20d, temperature at 25-65 DEG C.
Further, as a kind of enforceable scheme, the hydraulic detention time of ozone oxidation is controlled in 0- in step 3)
10h, ozone dosage are controlled in 2-10g O3/g TOC。
Further, further include as a kind of enforceable scheme, in step 3) to after ozone oxidation active carbon reduction plus
Heat, at 400-600 DEG C, the time controls in 0.5-3h heating and temperature control.
A kind of processing system containing polyacrylamide waste water using the above method, including sequentially connected anaerobic degradation
The reduction apparatus of device, ozone-oxidizing device and discharging device and biological load particle；The anaerobic degradation device includes detesting
Oxygen degradation reaction device is equipped with trace element solution peristaltic pump in the bottom of anaerobic degradation reactor, is close to anaerobic degradation reaction
Coiling is provided with temperature-adjusting device on the outer wall of device；The ozone-oxidizing device includes ozone oxidation reaction device and in ozone oxygen
Change the ozonation aerated disk of reactor bottom setting；The discharging device is the discharging peristaltic pump connecting with ozone oxidation reaction device；
The reduction apparatus includes tube furnace and the vacuum system that connect with tube furnace, to guarantee biological load particle in vacuum environment
Anoxybiotic heating.
It further, include by biological load particle structure in the anaerobic degradation reactor as a kind of enforceable scheme
At packing layer, the bottom centre of anaerobic degradation reactor is provided with trace element solution import, makes trace element solution from filling out
The bottom of the bed of material passes through from bottom to top, and packing layer is totally submerged, and is additionally provided with biogas at the top of anaerobic degradation reactor
Outlet.
Further, as a kind of enforceable scheme, the ozonation aerated disk is connect by pipeline with ozone generator,
The micropore that aperture is 5-100 μm, the micropore size phase in the same center of circle circumferential direction of ozonation aerated disk are evenly equipped on ozonation aerated disk
Together, and micropore size radially ecto-entad is gradually reduced.
Further, as a kind of enforceable scheme, the temperature-adjusting device is in the anaerobic degradation reactor
The heating tape of solution constant temperature or heating.
Further, as a kind of enforceable scheme, the biological load particle is coconut husk microporous activated carbon or porous
Zeolite molecular sieve.
The present invention utilizes the porous structure of catalyst carriers and the relatively large specific surface areas such as active carbon or molecular sieve
And porosity, by physisorption by waste water polyacrylamide and indigenous functional microorganism concentration be adsorbed onto one
It rises；During next biological anaerobic degradation, the microorganism with degradation function of biological load granular absorption is with poly- third
Acrylamide is carbon source and nitrogen source mass propagation to which polymer be degraded, and biological load particle provides well for microorganism
Habitat and good biofilm structure is formd in hole；Polyacrylamide is enhanced in the anaerobic fermentation step
Biodegradability energy, leave behind the pollutant that part biological method not can be removed, for it is next degradation laid lay a good foundation；?
In last ozone oxidation step, using the extensive chemical oxidisability of ozone to the remaining further oxidative degradation of pollutant, lead to
Checking on for the step is crossed, in waste water 95% or more contaminant degradation can finally be fallen, waste water is made to reach the life of direct emission
Change index request.
Compared with prior art, beneficial effects of the present invention are as follows:
1) physical absorption, biodegrade and the combination of chemical oxidation three are used, guarantee contains polyacrylamide
The treatment effect of waste water；
2) after adsorbing by biological load particle to polyacrylamide, then anaerobic degradation reactor is put into, it can be effective
Reduce the probability that polyacrylamide solution directly blocks anaerobic degradation reactor；
3) reduction recycling is carried out to the biological load particle after the completion of processing, greatly reduces the cost of wastewater treatment, it is green
Color is economic and environment-friendly.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the process flow diagram of the invention containing polyacrylamide waste water；
Fig. 2 is the active carbon hole scanning electron microscope (SEM) photograph before adsorbing in embodiment；
Fig. 3 is the scanning electron microscope (SEM) photograph of active carbon Internal biological film in embodiment；
Fig. 4 is the active carbon scanning electron microscope (SEM) photograph in embodiment after tube furnace high-temperature heating reduction；
Fig. 5 is the micropore arrangement schematic diagram of the ozonation aerated disk in embodiment.
Appended drawing reference:
1 anaerobic degradation reactor；1-1 methane outlet；
2 trace element solution peristaltic pumps；
3 heating tapes；
4 ozone oxidation reaction devices；
The ozonation aerated disk of 4-1；4-2 ozone generator；
5 discharging peristaltic pumps；
6 tube furnaces；
7 vacuum systems.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the present invention, the processing method containing polyacrylamide waste water is mainly comprised the steps that
1) biological load particle is put into waste water and is impregnated, adsorb the polyacrylamide and indigenous microorganism in waste water；
2) trace element solution is added into the biological load particle that step 1) obtains, promotes the indigenous microorganism to poly-
Acrylamide carries out anaerobic degradation；
3) to active carbon obtained in step 2) and biological sewage ozone oxidation, processing is completed.
Indigenous microorganism is one of five kinds of basic materials of natural agriculture, is the habitat with soil for oneself, is 1,100
Come the micropopulation being grown in local soil, the microorganism of oneself sphere of life is stood fast at.Indigenous microorganism is by fixing
The photosynthetic bacteria of carbon, the actinomyces for inhibiting disease, the saccharomycete for decomposing carbohydrate, the lactic acid bacteria effectively decomposed in the case where disliking gaseity
Deng tens kinds of microorganism groups at group.Emphasis, which uses, in the present invention is containing the indigenous microorganism in polyacrylamide waste water
Population, have using polymer as carbon source and nitrogen source, mass propagation to by polymer degradation unique function can make to gather
Acrylamide is effectively degraded in processes.The apolegamy of trace element solution is also for needed for indigenous microorganism population
Microelement advanced optimizes population in the microorganism of load, is enriched with indigenous microorganism in the gap of active carbon
And good biofilm structure is formed, it is beneficial to provide stable habitat for microorganism.
Treatment process principle containing polyacrylamide waste water is as follows, and biological load particle is said by taking active carbon as an example
It is bright:
(1) it prepares active carbon: preparing loose porous active carbon using the coconut husk after drying, hole is in nanometer to micron order
Not；
(2) activated carbon adsorption is handled: being utilized the physisorption of the active carbon prepared in (1), is placed it in oil
Contain 24-48h in polyacrylamide waste water and make up to adsorption saturation in field.Active carbon has biggish specific surface area, generally about
For 500m2/ g, for active carbon after adsorbing, the indigenous function through polyacrylamide and degradable polypropylene amide in waste water is micro-
Biology is concentrated and is adsorbed in the hole of active carbon.
(3) anaerobic fermentation of biological is handled: anaerobic degradation reactor hydraulic detention time for 24 hours, is externally wrapped with heating tape maintenance
Temperature is 53 DEG C, and the active carbon of adsorption saturation in (2) is launched into anaerobic biological reactor, and configuration is raw containing maintenance microorganism
Trace element solution necessary to long, regulating microelement pH value of solution are 7, are added from bottom to top by trace element solution peristaltic pump
Into anaerobic degradation reactor, trace element solution can be such that the microorganism in active carbon hole is enriched with, by detesting for 14d
Oxygen environment is cultivated, and active carbon is characterized, referring to Fig. 3, forms good biomembrane knot in the bright active carbon hole of SEM chart
Structure is beneficial to provide stable habitat for microorganism, and matrix caused by microbial life activity can protect micro- life
Object structure of community is not destroyed by external environment, will can be degraded in time in the methane outlet that the top of anaerobic degradation reactor is arranged
The biogas discharge that process generates, ensures the safety in treatment process.
(4) ozone oxidation reaction device is handled: according to the degree of the water outlet assessment anaerobic degradation of anaerobic degradation reactor, when detesting
After concentration of polyacrylamide is constantly reduced and tended towards stability in the water outlet of oxygen degradation reaction device, it is anti-that active carbon is put into ozone oxidation
Device is answered, and the liquid microelement containing polyacrylamide that previous step anaerobic degradation process is passed through rear outflow again is added.By active carbon
And biological sewage carries out ozonation aerated oxidation together.The hydraulic detention time of ozone oxidation reaction device is 2h, ozone dosage 5g
O3/ g TOC, ozone are generated by ozone generator.Ozone oxidation reaction device bottom is disposed with diameter 10cm, and 5-100 μ is distributed with
The ozonation aerated disk progress of the micropore of m pore size is ozonation aerated, and the water outlet of ozone oxidation reaction device can direct emission or recycling.
(5) tube furnace is handled: after ozone Oxidation Treatment, active carbon being put into tube furnace, in the effect of vacuum system
Lower starvation heats 1h at 550 DEG C, and temperature programming is set as heating up 10 DEG C per minute, which carries out high temperature to active carbon
Mineralising processing.Mineralization is under edaphon effect, and organic compound is converted into inorganic states compound mistake in soil
The general name of journey, the high temperature mineralising occurred in active carbon in the present invention can by the trace element solution of indigenous microorganism and remaining and
Biomembrane etc. is converted into the inorganic matters such as the required carbon source and nitrogen source of biology, has supplied Institute of Micro-biology's need for recycling for active carbon
Inorganic nutrients ingredient.
(6) active carbon recycling is handled: high temperature mineralising is carried out in tube furnace, and treated that active carbon further removes
Its internal microorganism and polyacrylamide, the porosity of activity recovery charcoal, can repeatedly be used to adsorb, realize the repetition of active carbon
It utilizes.
Technical effect brought by the present invention mainly has following several respects, and the one kind proposed in the comprehensive present invention contains poly- third
The processing system of acrylamide waste water is illustrated.
Referring to Fig. 1, the waste water treatment system in the present invention includes sequentially connected anaerobic degradation device, ozone-oxidizing device
And the reduction apparatus of discharging device and biological load particle；Anaerobic degradation device includes anaerobic degradation reactor 1, in anaerobism
The bottom of degradation reaction device 1 is equipped with trace element solution peristaltic pump 2, is close to coil setting on the outer wall of anaerobic degradation reactor
There is the heating tape 3 to solution in anaerobic degradation reactor and active carbon constant temperature or heating, at the top of anaerobic degradation reactor
It is additionally provided with methane outlet 1-1.Ozone-oxidizing device includes ozone oxidation reaction device 4 and is arranged in ozone oxidation reaction device bottom
Ozonation aerated disk 4-1, ozonation aerated disk 4-1 connect by pipeline with ozone generator 4-2；Discharging device is and ozone oxidation
The discharging peristaltic pump 5 that reactor 4 connects；Reduction apparatus includes tube furnace 6 and the vacuum system connecting with tube furnace 67, to guarantee
Biological load particle anoxybiotic in vacuum environment heats.Vacuum system in the present invention forms vacuum environment using vacuum pump,
By tube furnace both ends it is closed after be connected to form starvation/air condition with vacuum system, be using existing conventional techniques
Aforesaid operations can be achieved, be not described further.
Referring to fig. 2, active carbon has hole abundant and biggish specific surface area, can form indigenous microorganism and polymer
Efficient physical suction-operated.After being adsorbed to oil field waste water containing polyacrylamide with active carbon and reach saturation, active carbon
Internal indigenous functional microorganism rich in and polyacrylamide, are placed into anaerobic degradation reactor 1 and serve as packing layer,
Trace element solution is configured simultaneously, is flowed through from bottom to top by the trace element solution import of 1 bottom centre of anaerobic degradation reactor
Anaerobic degradation reactor 1 containing active carbon filler layer, and packing layer is totally submerged.Element liquid stream is through anaerobic degradation reactor
It while 1, is contacted with the microorganism in active carbon filler layer, provides required nutrient for the growth of microorganism, it is beneficial
In the formation of biomembrane, thus promote the polyacrylamide adsorbed in microbial degradation active carbon, the work after anaerobic degradation
The biofilm structure formed in property charcoal is detailed in Fig. 3.
According to the degree of the water outlet assessment anaerobic degradation of anaerobic degradation reactor 1, when in the water outlet of anaerobic degradation reactor 1
After concentration of polyacrylamide is constantly reduced and tended towards stability, active carbon is put into ozone oxidation reaction device 4, and previous step is added and detests
The sewage that oxygen degradation generates carries out ozonation aerated.4 bottom of ozone oxidation reaction device is disposed with the ozonation aerated disk 4- of micron level
1, the ozone generator 4-2 ozone molecule generated is dispersed into more small bubble, is increased dirty in ozone molecule and sewage
The contact area for contaminating object, to improve degradation efficiency, by the waste water that ozone oxidation reaction device 4 is handled can carry out discharge or
Recycling.The micropore that aperture is 5-100 μm is evenly equipped on ozonation aerated disk 4-1 in the present invention, it is same in ozonation aerated disk 4-1
Micropore size in one center of circle circumferential direction is identical, and radially ecto-entad is gradually reduced micropore size, is detailed in Fig. 5.This kind setting
Mode can make ozone bubbles more fully with active carbon and waste water, increase the processing that contact area guarantees ozone oxidation
Effect.
It is to be herein pointed out by physical absorption-anaerobic degradation reactor-ozone oxidation reaction device, that treated is living
Property charcoal in concentration of polyacrylamide have been reduced to it is very low, in tube furnace 6 carry out the reduction treatment of high temperature mineralising, further removal live
Microorganism and polyacrylamide, the porosity of activity recovery charcoal inside property charcoal, repeatedly can be used to adsorb, realize the weight of active carbon
Multiple to utilize, the active carbon internal structure after high-temperature heating reduction is detailed in Fig. 4.
Specific process flow in the present invention includes: by the active carbon of the adsorption saturation in the waste water containing polyacrylamide of oil field
It launches in anaerobic degradation reactor 1,53 DEG C of anaerobic reactor temperature, carries out the anaerobic degradation of the waste water containing polyacrylamide, it is living
Property charcoal inside biocoene better than 30 DEG C is formd at 53 DEG C, the active carbon hole scanning in Fig. 3 anaerobic degradation reactor
Electron microscope shows the enrichment by trace element solution, inside active carbon under conditions of anaerobic fermentation, forms stable life
The microbial degradation polyacrylamide that is produced as of object membrane structure, biomembrane provides stable place.Through anaerobic degradation reactor 1
Treated waste water and the active carbon in anaerobic degradation reactor 1 by 14d processing are put into ozone oxidation reaction device 4 together
Chemical oxidation treatment is carried out, polyacrylamide and pollutant difficult to degrade in waste water is further removed in a short time, goes
Except in active carbon microorganism and impurity, improve timeliness simultaneously improve effluent quality.The setting of ozone oxidation reaction device bottom
The ozone generator 4-2 ozone molecule generated is dispersed into small bubble by ozonation aerated disk 4-1, increases ozone and waste water
Contact area improves the utilization rate of ozone.Active carbon after ozone Oxidation Treatment carries out 550 DEG C of high temperature in tube furnace 6
Anoxybiotic mineralising reaction heats 1h at 10 DEG C per minute of temperature programming, 550 DEG C.Thoroughly remove the pollutant in active carbon hole with
And impurity, attached drawing 4 shows that high temperature mineralising has effectively restored the porosity of active carbon, realizes recycling, reduces economic loss.
Water outlet after ozone treatment reaches discharge standard.It is needing to illustrate in addition, in the present invention in addition to use active carbon, biological load
Grain can also be equally applicable to for porous zeolite molecular sieve, regular cellular structure and higher specific surface area and porosity
Absorption and formation to Polyacrylamide in Wastewater and microbial film.Certainly, design concept according to the present invention has micropore knot
Other of structure and high porosity catalyst carrier should also repeat no more in the technical scope that the present invention is protected.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, but those skilled in the art should understand that: its
It is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, various embodiments of the present invention skill that it does not separate the essence of the corresponding technical solution
The range of art scheme.
Claims (10)
1. a kind of processing method containing polyacrylamide waste water, which is characterized in that mainly comprise the steps that
1) biological load particle is put into waste water and is impregnated, adsorb the polyacrylamide and indigenous microorganism in waste water；
2) trace element solution is added into the biological load particle that step 1) obtains, promotes the indigenous microorganism to polypropylene
Amide carries out anaerobic degradation；
3) to active carbon obtained in step 2) and biological sewage ozone oxidation, processing is completed.
2. processing method according to claim 1, which is characterized in that the aperture on biological load particle described in step 1)
For nanometer to micron level, adsorption time control is impregnated in 24-48h.
3. processing method according to claim 1, which is characterized in that the hydraulic detention time control of anaerobic degradation in step 2)
System is controlled in 10-20d, temperature at 25-65 DEG C in 6-48h, time control.
4. processing method according to claim 1, which is characterized in that the hydraulic detention time control of ozone oxidation in step 3)
System is controlled in 0-10h, ozone dosage in 2-10g O3/g TOC。
5. processing method according to claim 4, which is characterized in that further include to the activity after ozone oxidation in step 3)
Charcoal reduction heating, at 400-600 DEG C, the time controls in 0.5-3h heating and temperature control.
6. a kind of processing system containing polyacrylamide waste water of any one of -5 processing methods according to claim 1,
It is characterized in that, including sequentially connected anaerobic degradation device, ozone-oxidizing device and discharging device and biological load particle
Reduction apparatus；The anaerobic degradation device includes anaerobic degradation reactor, is equipped in the bottom of anaerobic degradation reactor micro
Element Solution peristaltic pump is close to coiling on the outer wall of anaerobic degradation reactor and is provided with temperature-adjusting device；The ozone oxidation
Device includes ozone oxidation reaction device and the ozonation aerated disk in the setting of ozone oxidation reaction device bottom；The discharging device be with
The discharging peristaltic pump of ozone oxidation reaction device connection；The reduction apparatus includes tube furnace and the vacuum system connecting with tube furnace
System, to guarantee that biological load particle anoxybiotic in vacuum environment heats.
7. processing system according to claim 6, which is characterized in that include negative by biology in the anaerobic degradation reactor
The packing layer that particle is constituted is carried, the bottom centre of anaerobic degradation reactor is provided with trace element solution import, makes microelement
Solution passes through from bottom to top from the bottom of packing layer, and packing layer is totally submerged, and also sets at the top of anaerobic degradation reactor
It is equipped with methane outlet.
8. processing system according to claim 6, which is characterized in that the ozonation aerated disk is occurred by pipeline and ozone
Device connection is evenly equipped with the micropore that aperture is 5-100 μm on ozonation aerated disk, micro- in the same center of circle circumferential direction of ozonation aerated disk
Hole aperture is identical, and radially ecto-entad is gradually reduced micropore size.
9. processing system according to claim 6, which is characterized in that the temperature-adjusting device is to the anaerobic degradation
The heating tape of solution constant temperature or heating in reactor.
10. processing system according to claim 6, which is characterized in that the biological load particle is that coconut husk is microporous activated
Charcoal or porous zeolite molecular sieve.
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| CN201910038075.1A CN109502933B (en) | 2019-01-16 | 2019-01-16 | Method and system for treating wastewater containing polyacrylamide |
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| CN201910038075.1A CN109502933B (en) | 2019-01-16 | 2019-01-16 | Method and system for treating wastewater containing polyacrylamide |
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