CN209193733U - A kind of high concentration hard-degraded organic waste water processing unit - Google Patents
A kind of high concentration hard-degraded organic waste water processing unit Download PDFInfo
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- CN209193733U CN209193733U CN201821489862.5U CN201821489862U CN209193733U CN 209193733 U CN209193733 U CN 209193733U CN 201821489862 U CN201821489862 U CN 201821489862U CN 209193733 U CN209193733 U CN 209193733U
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Abstract
The utility model relates to a kind of high concentration hard-degraded organic waste water processing units, and wherein device includes the pretreatment system, biochemical treatment system and advanced treatment system being sequentially communicated by system pipeline；The pretreatment system includes the collecting pit being sequentially communicated, adjusts sour device, efficient oil-isolating device, selective electrocatalysis oxidation apparatus SECO, selective catalytic reduction oxidation reactor SCRO and neutralization precipitation pond, selective catalytic reduction oxidation reactor SCRO includes urging selective catalytic reduction device SCR and selective catalytic oxidation device SCO, selective catalytic reduction device SCR successively mutually indepedent with selective catalytic oxidation device SCO and being connected；Biochemical treatment system includes the biochemical conditioning tank being sequentially communicated, hydrolysis acidification pool, inner circulation reactor ICR, anoxic pond, aerobic tank and secondary settling tank；Advanced treatment system includes the preparing pool being sequentially communicated, fluidized bed oxidizing tower, neutralizes degassing pond, coagulative precipitation tank and clear water reserviors.
Description
Technical field
The utility model relates to water-treatment technology field more particularly to a kind of high concentration hard-degraded organic waste water processing dresses
It sets.
Background technique
Typical high concentration hard-degraded organic waste water, such as coking wastewater and semi-coke wastewater, they refer to that homogeneity coal (does not glue
Coal, weakly caking coal, jet coal etc.) one kind for being formed during middle low temperature distillation (about 600~800 DEG C) process and gas purification
Industrial wastewater.This waste component is complicated, containing a large amount of difficult to degrade, highly toxic pollutants, such as benzene homologues, phenols, polycyclic virtue
The inorganic pollutions such as organic pollutants and heavy metal such as hydrocarbon, nitrogen oxygen helerocyclics are a kind of typical high-concentration hardly-degradables
Organic wastewater.The COD of waste water is up to 20000-60000mg/L, and phenols content is about 2000-4000mg/L or more, and containing big
The noxious material suppressed growth of microorganism is measured, so directly biochemical treatment cannot be up to standard.And incineration method is only applicable in due to energy consumption height
In the seldom small business of water, and harmful substance when burning in waste water is discharged into atmosphere with vapor form, will cause
Secondary pollution.Semi-coke wastewater is also known as semicoke waste water, refers to low-disintegration coal (dross coal, weakly caking coal, jet coal) in middle low temperature distillation
A kind of industrial wastewater formed during (about 600~800 DEG C) process and gas purification, the quenching of semi-coke steam；This waste water
Complicated component, containing a large amount of difficult to degrade, highly toxic pollutants, such as benzene homologues, phenols, polycyclic aromatic hydrocarbon, nitrogen oxygen helerocyclics
The equal inorganic pollutions such as organic pollutants and heavy metal are a kind of typical high pollution, high toxicity industrial wastewater.State in 2008
After semi-coke (semicoke) is included in industry catalogue by family's industry and information-based Estate Division, since the market demand is huge, semi-coke industry is obtained
It grows rapidly, but environmentalist is not kept pace with paces to the correlative study of high concentration hard-degraded organic waste water, gone into operation
Most of semi-coke manufacturing enterprises, wastewater treatment generally still use common biochemical treatment process or incineration method.Existing semi-coke (half
It is burnt) the main type of furnace of retort that uses of enterprise is internal thermal upright furnace, the tar and water generated due to vertical heater production technology is very
Hardly possible separation, waste water COD are up to 30000~40000mg/L, and containing the noxious material largely suppressed growth of microorganism, so raw
Change processing is difficult up to standard.And incineration method is only applicable to the seldom small business of water due to energy consumption height, and when burning in waste water
Harmful substance is discharged into atmosphere in vapour form, will cause secondary pollution.
High concentration hard-degraded organic waste water, complicated component.General high concentration hard-degraded organic waste water COD content is
40000mg/L or more, phenols content are about 4000mg/L or more, and part macromolecular substances are difficult to by biochemical degradation；High concentration is difficult
Degradation of organic waste water difficulty of governance is very big, has become primarily in the semi-cokes industry centralization area such as northwest China and Inner Mongol in recent years
One of pollution sources.The environmental protection policy of country is more and more tighter at present, and implementation dynamics is also increasing, high concentration hard-degraded organic waste water
By being used for quenching, the conventional process mode for making pollutant be directly discharged into atmosphere is hard to carry on.It is organic to high-concentration hardly-degradable
Effective improvement of waste water has been related to the final and decisive juncture of entire semi-coke industry, has become crucial problem urgently to be resolved.It is domestic at present
For high concentration hard-degraded organic waste water there is no mature treatment process and successful case history, majority is useless referring to coking
The conventional treatment method of water.There are two types of usual ways, and one is direct biochemical treatments, and one is complex-extracting methods.It is directly raw
When changing processing high concentration hard-degraded organic waste water, complex in composition because of high concentration hard-degraded organic waste water is especially phenols content very
Height, the activity of restriction micro-organisms and cause to be difficult to handle, and useful components such as coal tar, phenol, ammonia in waste water etc. do not carry out
Recycling, causes the significant waste of resource, and cause seriously to pollute to environment.Conventional coking wastewater mentions phenol as pre- using ammonia still process
Processing method, operating cost is high and easily causes the secondary pollution of the organic matters such as extractant, complicated for operation, need professional into
Row operation.Therefore the existing treatment process referring to Technologies of Coke Plant Wastewater Treatment route, all has that processing technique is single, can operate
Property it is poor, implementation cost is high and can not accomplish standard water discharge discharge the problem of.
It is domestic at present that for such high concentration hard-degraded organic waste water, there is no mature treatment process and successful engineering
Example, the techniques such as most incineration methods, wet oxidation process, ammonia still process dephenolize+biochemical treatment, but there are cost height, energy consumption height, operation
The problems such as at high cost, and secondary pollution is easily caused, it is complicated for operation.
Chinese patent application (publication number CN108083566A) the utility model provides at a kind of high concentrated organic wastewater
Reason method.COD (COD or CODcr) refer to reducing substances under conditions of certain stringent, in water outside plus
Under the action of strong oxidizer, it is oxidized the quantity of consumed oxidant when decomposition, is indicated with the mg/L of oxygen.COD reflection
The degree polluted in water by reducing substances, these substances include organic matter, nitrite, ferrous salt, sulfide etc., therefore
COD can be used as a composite target of organic substance relative amount.At high concentrated organic wastewater provided by the utility model
Reason method treated water tests prove that COD value less than 500, obtain preferable purified treatment, reached national standard discharge mark
It is quasi-.
Chinese patent application (publication number CN104445815A) discloses a kind of semi-coke production utilization of wastewater resource technique
Method and device, including depth water-oil separating, efficient complexometric extraction dephenolize, ammonia still process three parts.The problem of such technique, is to adopt
Multistage filtering process is longer, and complicated for operation.
For the outstanding problem present on, the utility model proposes a kind of easy to operate, at low cost and be not easy to cause
The high concentration hard-degraded organic waste water processing unit and method of secondary pollution.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of easy to operate, at low cost and is not easy to cause secondary dirt
The high concentration hard-degraded organic waste water processing unit of dye.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is: the high-concentration hardly-degradable organic waste
Water treatment facilities includes the pretreatment system, biochemical treatment system and advanced treatment system being sequentially communicated by system pipeline；
The pretreatment system includes the collecting pit being sequentially communicated, adjusts sour device, efficient oil-isolating device, selective electro-catalysis
Oxidation unit SECO, selective catalytic reduction oxidation reactor SCRO and neutralization precipitation pond, the selective catalytic reduction oxidation
Reactor SCRO includes selective catalytic reduction device SCR and selective catalytic oxidation device SCO, the selective catalytic reduction
Device SCR is successively mutually indepedent with the selective catalytic oxidation device SCO and is connected；
The biochemical treatment system include the biochemical conditioning tank being sequentially communicated, hydrolysis acidification pool, inner circulation reactor ICR,
Anoxic pond, aerobic tank and secondary settling tank；The inner circulation reactor ICR is successively arranged waterpower even distribution device and two layers bottom-up
The top of three phase separator, the inner circulation reactor ICR is equipped with moisture trap；
The advanced treatment system includes the preparing pool being sequentially communicated, fluidized bed oxidizing tower FBR, neutralizes degassing pond, coagulation
Sedimentation basin and clear water reserviors.
By adopting the above technical scheme, high concentration hard-degraded organic waste water initially enters pretreatment system, by pretreated
Adjust sour device, efficient oil-isolating device, selective electrocatalysis oxidation apparatus SECO, selective catalytic reduction oxidation unit SCRO and in
And precipitating, waste water is evacuated to the sour device of tune from collecting pit, and through toning acid pH to 1-4, the phenols oils in waste water is layered, subsequently into
Efficient oil-isolating device is separated, and heavy oil and light oil are recycled, and is urged using selective electrocatalysis oxidation apparatus SECO and selectivity
Change redox reaction device SCRO, using electric energy, catalyst and oxidant, selective hardly degraded organic substance carries out brokenly ring and breaks
Chain generates small organic molecule, and the biodegradability of waste water can greatly improve, and B/C is up to 0.4 or so, and then this is pretreated
Waste water enters biochemical treatment system；
Waste water, into biochemical system, it is anti-to pass sequentially through biochemical conditioning tank, hydrolysis acidification pool, interior circulation after pretreatment
Device ICR, anoxic pond (pond A), aerobic tank (pond O), secondary settling tank are answered, in hydrolysis acidification pool, the organic matter in waste water is in hydrolysis acid
Under the action of changing bacterium, hydrolysis acidification reaction occurs, further increases the biodegradability of waste water, in inner circulation reactor ICR,
Under the action of particle anaerobic bacteria, by repeatedly interior circulation, anaerobic methane production reaction occurs in reactor, to reduce organic matter and mention
The biodegradability of high waste water, then waste water enters anoxic pond (pond A) and aerobic tank (pond O), in the device, largely biochemical to have
Machine object converts CO for the organic matter in waste water by microorganism2And H2O, but still have some organic matters difficult to degrade cannot be by
Biodegrade needs advanced treating；
By the waste water of biochemical treatment system, COD is that 250~300mg/L is successively passed through subsequently into advanced treatment system
It crosses preparing pool, fluidized bed oxidizing tower FBR, neutralize degassing pond, coagulative precipitation tank, clear water reserviors.Waste water is in fluidized bed oxidizing tower FBR
In, by the effect of catalyst and oxidant, remaining hardly degraded organic substance is directly resolved into CO2And H2Then O adjusts pH
For value to neutral and coagulating sedimentation, water outlet meets standard requirements, and the COD of water outlet is 80~100mg/L.
The utility model further improvement lies in that, the selectivity electrocatalysis oxidation apparatus SECO includes DC power supply and urging
Oxidation device, the DC power supply are arranged outside the catalyst oxidation reactor.Such setting can be convenient directly
Electrocatalysis oxidation reaction is carried out to the hardly degraded organic substance in catalyst oxidation reactor.Selective electrocatalysis oxidation apparatus SECO skill
The redox materials that art is generated using electrochemistry utilize what is generated in electrolytic catalysis reaction process as reactant or catalyst
Strong oxdiative ion (OH, O2、H2O2Deng), with the organic pollutant in waste water without chain reaction quickly selectively occurs, carry out
Oxidative degradation.In addition the synergistic effect of hydrogen peroxide, oxygen etc., mass transfer oxidation efficiency is greatly improved, can effective degradation of organic substances,
The advantages that its feature is that oxidability is strong, and reaction speed is fastly and reaction is thorough has preferable drop to persistent organic pollutants
Solve effect；Waste water low to conductivity simultaneously also has good adaptability, which is the technology heat of current wastewater treatment
Point is the new process of high concentrated organic wastewater processing；Under the action of direct current, through a series of catalysis and oxidation process,
Not only make the colloidal state impurity in waste water, suspended impurity flocculation sedimentation and separate, but also the reduction of the oxidation of anode and cathode
Effect, can remove the multiple pollutant in waste water；Appropriate oxidant and catalyst is added simultaneously, (Free Radical) passes through advanced
Larger molecular organics in oxidation oxidized waste water；Finally by aeration effect, by supplemental oxygen, so that in catalysis system
It efficiently generates free radicals, further makes phenyl ring class in waste water, heterocycle type organic open loop, at subsequent comprehensive biochemistry
Reason；Selective catalytic reduction oxidation SCRO technology is the hydroxyl that strong oxidizing property is generated using special ferrum-based catalyst catalysis hydrogen peroxide
Base free radical, and then oxidation of organic compounds；In this process and iron-based flocculation is generated, 40~80% catalyst can be saved
With the usage amount of hydrogen peroxide, other oxidation technologies are replaced using efficient selective catalytic reduction oxidation SCRO technology, increase is gone
Except efficiency, added amount of chemical is reduced；By selective catalytic reduction oxidation SCRO degradation, waste water COD is significantly cut down, B/
C ratio also has and significantly improves, but remaining a large amount of ferrite based substances in waste water, all very not to subsequent biochemical treatment
Benefit, so selective catalytic reduction aoxidizes the final water outlet of SCRO reaction member and must first use Ca (OH)2Lotion or NaOH solution
PH is adjusted, while can assist reinforcing sedimentation effect with PB1 gene and polyacrylamide PAM.Coagulating sedimentation can make
Ferrite based substances form sediment leads to since the iron-based colloid of nascent state has very big specific surface area and very strong adsorption capacity
Crossing colloid COD and coloration that adsorption precipitation can remove in waste water can be to after adding alkali in order to improve the effect of settling of wadding body
Flocculation aid polyacrylamide PAM is added in waste water, so that the tiny colloidal precipitation generated forms biggish wadding body, thus with very fast
Velocity sedimentation；By selective electrocatalysis oxidation apparatus SECO technology in conjunction with catalytic oxidation technologies, selective electrocatalytic oxidation
Macromolecular substances can be carried out preliminary scission of link by device SECO, some substances after scission of link are still difficult to carry out absorption drop by microorganism
Solution, and there is certain organic toxicity, the degradation efficiency that substance of this kind continues when aoxidizing is very low, such as nitrobenzene, chlorobenzene
Equal substances, it is therefore desirable to aoxidize SCRO technology in conjunction with selective catalytic reduction, substance of this kind is restored first, utilizes reduction
Technology replaces certain groups on phenyl ring or heterocyclic compound, generates organic substance easy to oxidize, then carries out again advanced
Oxidation, can effectively be degraded the substance of such high poison；Pass through selective electrocatalysis oxidation apparatus SECO+ selective catalysis
Reduction-oxidation SCRO handles high concentration hard-degraded organic waste water, greatly improves wastewater biodegradability, B/C ratio can reach 0.4 with
On.
The utility model further improvement lies in that, the top of the efficient oil-isolating device is equipped with Oil scraper and oil separating plate, energy
Light oil and heavy oil are recycled simultaneously, and carry out water-oil separating.Oil slick i.e. light oil is collected using Oil scraper and oil separating plate, is set in this way
Light oil and heavy oil can be recycled simultaneously by setting, and more effectively be recycled the oil in waste water.
The utility model further improvement lies in that, the selectivity electrocatalysis oxidation apparatus SECO includes DC power supply and urging
Oxidation device, the DC power supply are arranged outside the catalyst oxidation reactor.The redox generated using electrochemistry
Substance utilizes Strong oxdiative ion (OH, the O generated in electrolytic catalysis reaction process as reactant or catalyst2、H2O2
Deng), with the organic pollutant in waste water without chain reaction selectively quickly occurs, carry out oxidative degradation.
The utility model further improvement lies in that, the selective catalytic oxidation device SCO be equipped with the first reflux pump, it is described
The bottom of the lower section of selective catalytic reduction device SCR is equipped with the first air intake, and in the selective catalytic reduction device
Position corresponding with first air intake is equipped with the first air even distribution device in SCR.First reflux pump is set, makes to select
Property catalytic oxidizing equipment SCO in can voluntarily flow back, be conducive to the progress for accelerating catalysis reaction；Selective catalysis also
The first air intake and the first air even distribution device are arranged outside original device SCR can make air be catalyzed reduction evenly into selecting property
Device SCR.
As the optimal technical scheme of the utility model, the neutralization precipitation pond successively includes neutralization pond, reaction tank and sinks
Shallow lake pond, three ponds are concentrated and are integrated, the neutralization pond be connected above the reaction tank and bottom is isolated, the reaction
It is connected above pond and the sedimentation basin and bottom is isolated.Setting can make precipitate at the bottom of neutralization pond in this way
Portion, supernatant liquor flow to reaction tank certainly；Also make precipitate in the bottom of reaction tank simultaneously, supernatant liquor flow to precipitating certainly
Pond is conducive to waste water and clear liquid and is flocculated and separated.
As the optimal technical scheme of the utility model, the voltage of the DC power supply is 1~100,000 volts.
The utility model further improvement lies in that, the hydrolysis acidification pool is provided with cover board and waterpower partition, the cover board
Positioned at the hydrolysis acidification pool top and be parallel to the horizontal direction of the hydrolysis acidification pool；The waterpower partition is arranged in institute
It states in hydrolysis acidification pool, and is connected to the cover board from the bottom of the hydrolysis acidification pool and is mutually perpendicular to the cover board.If
It sets cover board and waterpower partition is conducive to organic wastewater be hydrolyzed acidification.
The utility model further improvement lies in that, the inner circulation reactor ICR be equipped with the second reflux pump, described second time
The upper layer of two layers of three phase separator is arranged in one end of stream pump, and the lower section of the waterpower even distribution device is arranged in the other end；
The waterpower even distribution device and two layers of three phase separator are arranged in parallel in the inner circulation reactor ICR；It is described
Automatic mud scraper is equipped in secondary settling tank, the automatic mud scraper includes scraper, main shaft and motor, the upper end connection of the main shaft
There is motor, the main shaft passes through the secondary settling tank from the top of the secondary settling tank and enters to the bottom in the secondary settling tank, described
The bottom of main shaft is connected with scraper；The fluidized bed oxidizing tower FBR is equipped with third reflux pump.Inner circulation reactor ICR is set
Particle anaerobic bacteria is under the action of waterpower, in conjunction with two layers of three phase separator, that is, gas, solid, liquid three phase separator, by interior circulation and
Two kinds of outer circulation circulations sufficiently processing organic wastewater, to improve the biodegradability of waste water；Setting scraper is more advantageous to sludge
Precipitation and separation is carried out with water.
The utility model further improvement lies in that, the lower section of the biochemistry conditioning tank is equipped with second air intake, and in institute
It states position corresponding with the second air intake in biochemical conditioning tank and is equipped with the first air even distribution device；The aerobic tank
Lower section is equipped with third air intake, and position corresponding with the third air intake is equipped with third sky in the aerobic tank
Gas even distribution device；The lower section of the preparing pool is equipped with the 4th air intake, and enters in the preparing pool with the 4th air
The corresponding position of mouth is equipped with the 4th air even distribution device；The lower section for neutralizing degassing pond is equipped with the 5th air intake；And
Position corresponding with the 5th air intake is equipped with the 5th air even distribution device in neutralization degassing pond, removes water for going
The CO of middle generation2And extra oxidant；Evenly spaced inclined tube is equipped in the coagulative precipitation tank, for increasing precipitating
Effect.
The technical problems to be solved in the utility model is to provide a kind for the treatment of process of high concentration hard-degraded organic waste water,
The biodegradability that waste water can effectively be improved improves the operation stability and water treatment efficiency of biochemical system.
In order to solve the above-mentioned technical problem, the technical solution of use are as follows: the processing work of the high concentration hard-degraded organic waste water
Skill, comprising the following steps:
(1) preprocessing process:
S11 tune acid: after organic wastewater is discharged into collecting pit, being added acid to the sour device of tune by pumping and carry out pH value adjusting,
The pH value of organic wastewater is set to be adjusted to 1~4, the organic wastewater phenols after acidification is largely precipitated, and is layered rapidly；
S12 oil removal: organic wastewater is recycled by efficient oil-isolating device after acidified, in organic wastewater
Upper layer oil slick and heavy bottom oil are separated, to achieve the purpose that oil removing；
S13 electrocatalysis oxidation reaction: the clear water after oil removal separates enters selective electrocatalysis oxidation apparatus SECO, utilizes
High voltage direct current simultaneously carries out electrocatalysis oxidation reaction simultaneously under the effect of the catalyst, chain reaction selectively occurs, to having
Organic matter in machine waste water carries out oxidative degradation；
S14 is catalyzed redox reaction: the organic wastewater after electrocatalysis oxidation reaction enters selective catalytic reduction oxygen
SCRO is set in makeup, and catalyst is added and oxidant carries out catalysis redox reaction；
S15 neutralization reaction: the organic wastewater after being catalyzed redox reaction enters neutralization precipitation pond, in neutralization precipitation pond
Organic wastewater is neutralized to neutrality by middle addition alkaline agent, and adds flocculant and/or flocculation aid is sufficiently reacted, and neutralizes coagulation
After precipitation reaction, by sludge settling therein, supernatant liquor is entered into biochemical treatment system；(2) biochemical treatment process:
S21 biochemistry is adjusted: will after pretreatment organic wastewater hydraulic retention 5~for 24 hours in biochemical conditioning tank, to having
Machine waste water plays the role of homogeneous；
S22 hydrolysis acidification: the organic wastewater after homogeneous enters hydraulic retention 1~4 day in hydrolysis acidification pool, passes through hydrolysis
It is acidified the effect of bacterium, so that organic wastewater is hydrolyzed and is acidified, prepares to Anaerobic Treatment；
The reaction of S23 internal circulating anaerobic: the organic wastewater after hydrolysis acidification enters inner circulation reactor ICR, and interior circulation is anti-
It answers culture in device ICR to use particle anaerobic bacteria, is disposed with two layers of gas, solid, liquid three phase separator in inner circulation reactor ICR, it is interior
1~6h of hydraulic detention time of recirculation reactor ICR, 30~120kgCOD/ of volumetric loading rate (m of intaking3·h)；
S24 anoxic/aerobic reaction: the organic wastewater reacted through internal circulating anaerobic enters the pond anoxic pond A, leads in anoxic pond
Bacterium biochemical action is crossed, hypoxia response and anti-nitration reaction occurs, anoxic pond A pond dissolved oxygen value is less than 0.2mg/L, stops 1~3
It；The water outlet of the pond anoxic pond A enters the pond aerobic tank O, stops 1~3 day, wastewater sludge reflux ratio 1~3, the pond aerobic tank O dissolved oxygen value
Secondary settling tank is drained by sludge pump in the excess sludge of 1-5mg/L, the pond aerobic tank O；
The processing of S25 sedimentation in secondary sedimentation tank: excess sludge and water are subjected to precipitation and separation, isolated excess sludge goes Treatment of Sludge
System；
(3) advanced treatment process:
S31: the organic wastewater by biochemical treatment enters preparing pool, and bronsted lowry acids and bases bronsted lowry is added in 6~48h of hydraulic retention thereto,
Deploying to pH is 1~4,；
S32: the organic wastewater after acid-base accommodation enters fluidized bed oxidizing tower FBR, and oxidant is added thereto and urges
Agent, under the action of catalyst, using strong oxidizer directly by remaining hardly degraded organic substance be direct oxidation into carbon dioxide and
Water；Hydraulic detention time is 1~2h；
S33: the organic wastewater through peroxidating enters neutralization degassing pond, and alkaline agent is added, organic wastewater is neutralized to neutrality, and
Air is blasted in lower section, to remove the reagent of excessive carbon dioxide and addition；
S34: the organic wastewater after neutralized adjusting enters coagulative precipitation tank, and flocculant is added thereto, by internal oblique
Precipitating sludge is discharged in pipe precipitation, and upper layer clear water flows into clear water reserviors, detects water quality, water quality reaching standard, outlet or reuse.
As the optimal technical scheme of the utility model, acid described in the step S11 and S31 uses sulfuric acid and/or salt
Acid；Catalyst in the step S13 is Fe, and catalytic reaction condition is that the dosage of catalyst is 1~5g/L, and electrode plate distance is
10~30mm, reaction time are 1~5h, and voltage is 1~100,000 volts；Selective catalytic reduction dress in the step S14
That sets SCR is internally provided with PP filler, and catalyst is added in the selective catalytic reduction device SCR, and the catalyst is Fe
(II), the oxidant be hydrogen peroxide, be catalyzed redox reaction condition be catalyst dosage be 0.1~2g/L, oxidation
The dosage of agent is 1 ‰~1%, restores 2~5h of workshop section's reaction time, and the oxidation section reaction time is 2~8h.
By experimental results demonstrate, using above-mentioned reaction condition, can achieve one it is optimal as a result, greatly improving useless
Water biodegradability, B/C ratio can reach 0.38 or more.
As the optimal technical scheme of the utility model, the catalyst being added in the step S32 is Fe (II), addition
Oxidant is hydrogen peroxide, and the dosage of catalyst is respectively 1~10g/L, and the dosage of oxidant is 5 ‰~5%；The step
Alkaline agent in S15, S31 and S33 is from NaOH, Ca (OH)2, one or more of KOH mixing；The step S15 and S34
Middle flocculant is PB1 gene, ferric sulfate and/or polyacrylamide PAM, and additional amount is 2~20g/L；The step S15
In flocculation aid be polyacrylamide PAM.
Compared with prior art, the utility model have the beneficial effect that high concentration hard-degraded organic waste water first into
Enter pretreatment system, passes through the sour device of pretreated tune, efficient oil-isolating device, selective electrocatalysis oxidation apparatus SECO, selection
Property catalysis reduction-oxidation device SCRO and neutralization precipitation, waste water is evacuated to the sour device of tune from collecting pit, through toning acid pH to 1-4, gives up
Phenols oils layering in water, is separated subsequently into efficient oil-isolating device, heavy oil and light oil is recycled, using selective electricity
Catalytic oxidizing equipment SECO and selective catalytic reduction oxidation reactor SCRO utilizes electric energy, catalyst and oxidant, selectivity
Hardly degraded organic substance carry out brokenly ring and chain rupture, generate small organic molecule, the biodegradability of waste water can greatly improve, and B/C can
Up to 0.4 or so, then the pretreated waste water enters biochemical treatment system；
Waste water, into biochemical system, it is anti-to pass sequentially through biochemical conditioning tank, hydrolysis acidification pool, interior circulation after pretreatment
Device ICR, anoxic pond (pond A), aerobic tank (pond O), secondary settling tank are answered, in hydrolysis acidification pool, the organic matter in waste water is in hydrolysis acid
Under the action of changing bacterium, hydrolysis acidification reaction occurs, further increases the biodegradability of waste water, in inner circulation reactor ICR,
Under the action of particle anaerobic bacteria, by repeatedly interior circulation, anaerobic methane production reaction occurs in reactor, to reduce organic matter and mention
The biodegradability of high waste water, then waste water enters anoxic pond (pond A) and aerobic tank (pond O), in the device, largely biochemical to have
Machine object converts CO for the organic matter in waste water by microorganism2And H2O, but still have some organic matters difficult to degrade cannot be by
Biodegrade needs advanced treating；
By the waste water of biochemical treatment system, COD is that 250~300mg/L is successively passed through subsequently into advanced treatment system
It crosses preparing pool, fluidized bed oxidizing tower FBR, neutralize degassing pond, coagulative precipitation tank, clear water reserviors.Waste water is in fluidized bed oxidizing tower FBR
In, by the effect of catalyst and oxidant, remaining hardly degraded organic substance is directly resolved into CO2And H2Then O adjusts pH
For value to neutral and coagulating sedimentation, water outlet meets standard requirements, and the COD of water outlet is 80~100mg/L.
Detailed description of the invention
Further describe with reference to the accompanying drawing the technical solution of the utility model includes:
Fig. 1 is the high concentration hard-degraded organic waste water processing unit structure chart of the utility model embodiment 1；
Fig. 2 is the flow chart of the treatment process of the high concentration hard-degraded organic waste water of the utility model embodiment 2；
Wherein: 1- collecting pit；2- tune acid device；The efficient oil-isolating device of 3-；3-1- Oil scraper；3-2- oil separating plate；4- selection
Property electrocatalysis oxidation apparatus SECO；4-1- DC power supply；4-2- catalyst oxidation reactor；5- selective catalytic reduction oxidation reaction
Device SCRO；5-1- selective catalytic reduction device SCR；5-2- selective catalytic oxidation device SCO；6- neutralization precipitation pond；7- is raw
Change and reconciles pond；8- hydrolysis acidification pool；8-1- cover board；8-2- waterpower partition；9- inner circulation reactor ICR；9-1- waterpower arranges
It sets；9-2- moisture trap；Two layers of three phase separator of 9-3-；10- anoxic pond；11- aerobic tank；12- secondary settling tank；12-1- scrapes mud
Machine；13- preparing pool；14- fluidized bed oxidizing tower FBR；In 15- and degassing pond；16- coagulative precipitation tank；16-1- inclined tube；17- clear water
Pond.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.
Embodiment 1: as shown in Figure 1, the high concentration hard-degraded organic waste water processing unit includes passing through system pipeline successively
Pretreatment system, biochemical treatment system and the advanced treatment system of connection；The pretreatment system includes the collection being sequentially communicated
Pond 1 adjusts sour device 2, efficient oil-isolating device 3, selective electrocatalysis oxidation apparatus (SECO) 4, selective catalytic reduction oxidation anti-
Device (SCRO) 5 and neutralization precipitation pond 6 are answered, the selective catalytic reduction oxidation reactor (SCRO) 5 includes urging selective catalysis
Reduction apparatus (SCR) 5-1 and selective catalytic oxidation device (SCO) 5-2, selective catalytic reduction device (SCR) 5-1 and
Selective catalytic oxidation device (SCO) 5-2 is successively mutually indepedent and is connected；The biochemical treatment system includes successively connecting
Logical biochemical conditioning tank 7, hydrolysis acidification pool 8, inner circulation reactor (ICR) 9, anoxic pond 10, aerobic tank 11 and secondary settling tank 12；Institute
It states inner circulation reactor (ICR) 9 and is successively arranged waterpower even distribution device 9-1 and two layers of three phase separator 9-3 bottom-up, it is described
The top of inner circulation reactor (ICR) 9 is equipped with moisture trap 9-2；The advanced treatment system includes the allotment being sequentially communicated
Pond 13, fluidized bed oxidizing tower (FBR) 14 neutralize degassing pond 15, coagulative precipitation tank 16 and clear water reserviors 17；The selectivity electro-catalysis
Oxidation unit (SECO) 4 includes DC power supply 4-1 and catalyst oxidation reactor 4-2, and the DC power supply 4-1 setting is urged described
Outside oxidation device 4-2；The top of the efficient oil-isolating device 3 is equipped with Oil scraper 3-1 and oil separating plate 3-2, can recycle simultaneously
Light oil and heavy oil, and carry out water-oil separating；The top of the side of the collecting pit 1 is equipped with high concentration hard-degraded organic waste water entrance
And the bottom of the other side is equipped with outlet conduit, the top for adjusting sour device 2 is equipped with inlet duct, the outlet of the collecting pit 1
Pipeline is connected with the inlet duct for adjusting sour device 2 by pump and first pipe；The sour device 2 of the tune with it is described efficiently every
The top of oily device 3 is connected and bottom is isolated；The top of the side of the efficient isolating device 3 and the catalysis oxidation are anti-
The top of device 4-2 is answered to be connected by second pipe；The top of the catalyst oxidation reactor 4-2 by third pipeline with it is described
It is connected above selective catalytic reduction device (SCR) 5-1, the side of selective catalytic oxidation device (SCO) 5-2
Top is connected with the top in the neutralization precipitation pond 6 by the 4th pipeline；The top of the side in the neutralization precipitation pond 6 connects
There is biochemical treatment system；Selective catalytic oxidation device (SCO) 5-2 is equipped with the first reflux pump, and the selective catalysis is also
The bottom of the lower section of original device (SCR) 5-1 is equipped with the first air intake, and in the selective catalytic reduction device (SCR) 5-1
Interior position corresponding with first air intake is equipped with the first air even distribution device；The neutralization precipitation pond 6 successively includes
Neutralization pond, reaction tank and sedimentation basin, the neutralization pond be connected above the reaction tank and bottom is isolated, it is described anti-
It is connected above sedimentation basin described in Ying Chiyu and bottom is isolated；The voltage of the DC power supply 4-1 is 1~100,000 volts；Institute
State that hydrolysis acidification pool 8 is provided with cover board 8-1 and waterpower partition 8-2, the cover board 8-1 are located at the top of the hydrolysis acidification pool 8
And it is parallel to the horizontal direction of the hydrolysis acidification pool 8；The waterpower partition 8-2 is arranged in the hydrolysis acidification pool 8, and from
The bottom of the hydrolysis acidification pool 8 is connected to the cover board 8-1 and is mutually perpendicular to the cover board 8-1；The interior circular response
Device (ICR) 9 is equipped with the second reflux pump, and the upper layer of two layers of three phase separator 9-3 is arranged in one end of second reflux pump,
The lower section of the waterpower even distribution device 9-1 is arranged in the other end；The waterpower even distribution device 9-1 and two layers of three phase separator
9-3 is arranged in parallel in the inner circulation reactor (ICR) 9；Automatic mud scraper 12-1 is equipped in the secondary settling tank, it is described
Automatic mud scraper 12-1 includes scraper, main shaft and motor, and the upper end of the main shaft is connected with motor, and the main shaft is from described two
The top in heavy pond 12 passes through the secondary settling tank 12 and enters to the bottom in the secondary settling tank 12, and the bottom of the main shaft, which is connected with, scrapes
Mud device；The fluidized bed oxidizing tower (FBR) 14 is equipped with third reflux pump；The lower section of the biochemistry conditioning tank 7 is equipped with the second air
Entrance, and position corresponding with the second air intake is equipped with the first air even distribution device in the biochemical conditioning tank 7；
The lower section of the aerobic tank 11 is equipped with third air intake, and corresponding with the third air intake in the aerobic tank 11
Position be equipped with third air even distribution device；The lower section of the preparing pool 13 is equipped with the 4th air intake, and in the preparing pool
Position corresponding with the 4th air intake is equipped with the 4th air even distribution device in 13；The lower section for neutralizing degassing pond 15
Equipped with the 5th air intake；And position corresponding with the 5th air intake is equipped with the 5th in described and in degassing pond 15
Air even distribution device, the CO for going to generate in water removal2And extra oxidant；It is equipped in the coagulative precipitation tank 16 uniform
The inclined tube 16-1 at interval, for increasing the effect of precipitating.
The treatment process of the high concentration hard-degraded organic waste water, comprising the following steps:
(1) preprocessing process:
S11 tune acid: after organic wastewater is discharged into collecting pit 1, acid is added to the sour device 2 of tune by pumping and carries out pH value tune
Section, makes the pH value of organic wastewater be adjusted to 1~4, and the organic wastewater phenols after acidification is largely precipitated, and is layered rapidly；
S12 oil removal: organic wastewater is recycled by efficient oil-isolating device 3 after acidified, in organic wastewater
Upper layer oil slick and heavy bottom oil separated, to achieve the purpose that oil removing；
S13 electrocatalysis oxidation reaction: the clear water after oil removal separates enters selective electrocatalysis oxidation apparatus (SECO) 4,
ECO catalytic oxidation is simultaneously carried out under the effect of the catalyst simultaneously using high voltage direct current, and chain reaction selectively occurs,
Oxidative degradation is carried out to the organic matter in organic wastewater；
S14 is catalyzed redox reaction: the organic wastewater through ECO catalysis oxidation enters selective catalytic reduction oxidation unit
(SCRO) 5, oxidant is added and catalyst carries out redox reaction；
S15 neutralization reaction: entering neutralization precipitation pond 6 for the organic wastewater through being catalyzed redox reaction in step (4),
Alkaline agent is added in neutralization pond, organic wastewater is neutralized to neutrality, the organic wastewater in neutralization pond flows automatically coagulation in reaction tank,
Flocculant is added in reaction tank and/or flocculation aid is sufficiently reacted, the organic wastewater after coagulating flow to sedimentation basin certainly,
Iron cement therein is precipitated, supernatant liquor is entered into biochemical treatment system；(2) biochemical treatment process:
S21 biochemistry is adjusted: will after pretreatment organic wastewater hydraulic retention 5~for 24 hours in biochemical conditioning tank 7, it is right
Organic wastewater plays the role of homogeneous；
S22 hydrolysis acidification: the organic wastewater after homogeneous enters hydraulic retention 1~4 day in hydrolysis acidification pool 8, passes through water
The effect of solution acidification bacterium, makes organic wastewater be hydrolyzed and be acidified, prepares to Anaerobic Treatment；
The reaction of S23 internal circulating anaerobic: the organic wastewater after hydrolysis acidification enters inner circulation reactor (ICR) 9, interior circulation
Culture uses particle anaerobic bacteria in reactor (ICR) 9, is disposed with two layers of gas, solid, liquid three-phase separate in inner circulation reactor (ICR) 9
From device, 1~6h of hydraulic detention time of inner circulation reactor (ICR) 9,30~120kgCOD/ of volumetric loading rate (m of intaking3·
h)；
S24 anoxic/aerobic reaction: the organic wastewater reacted through internal circulating anaerobic enters anoxic pond 10 (pond A), in anoxic pond
It is acted in 10 by bacteria bio, hypoxia response and anti-nitration reaction occurs, (pond the A) dissolved oxygen value of anoxic pond 10 is less than 0.2mg/
L is stopped 1~3 day；Anoxic pond 10 (pond A) water outlet enters aerobic tank 11 (pond O), stops 1~3 day, and wastewater sludge reflux ratio 1~
3, (pond the O) dissolved oxygen value of aerobic tank 11 drains into secondary settling tank by sludge pump in 1~5mg/L, the excess sludge of aerobic tank 11 (pond O)
12；
The processing of S25 sedimentation in secondary sedimentation tank: excess sludge and water are subjected to precipitation and separation, isolated excess sludge goes Treatment of Sludge
System；
(3) advanced treatment process:
S31: the organic wastewater by biochemical treatment enters preparing pool 13,6~48h of hydraulic retention, be added thereto acid or
Lye is simultaneously uniformly mixed, and pH is made to be adjusted to 1~4；
S32: the organic wastewater after acid-base accommodation enters fluidized bed oxidizing tower (FBR) 14, and oxidant is added thereto
And remaining hardly degraded organic substance is directly direct oxidation into titanium dioxide using strong oxidizer under the action of catalyst by catalyst
Carbon and water；Hydraulic detention time is 1~2h；
S33: the organic wastewater through peroxidating enters neutralization degassing pond 15, and alkaline agent is added, organic wastewater is neutralized to neutrality,
And air is blasted in lower section, to remove the reagent of excessive carbon dioxide and addition；
S34: the organic wastewater after neutralized adjusting enters coagulative precipitation tank 16, and flocculant is added thereto, passes through inside
Precipitating sludge is discharged in tube settling effect, and upper layer clear water flows into clear water reserviors, detects water quality, water quality reaching standard, outlet or reuse.
Acid described in the step S11 and S31 uses sulfuric acid and/or hydrochloric acid；Catalyst in the step S13 is Fe,
Catalytic reaction condition is that the dosage of catalyst is 1~5g/L, and electrode plate distance is 10~30mm, and the reaction time is 1~5h, voltage
It is 1~100,000 volts；The selective catalytic reduction device (SCR) 5-1's in the step S14 is internally provided with PP filler,
Catalyst is added in selective catalytic reduction device (SCR) 5-1, the catalyst is Fe (II), and the oxidant is double
Oxygen water, it is 0.1~2g/L that the condition for being catalyzed redox reaction, which is the dosage of catalyst, the dosage of oxidant is 1 ‰~
1%, 2~5h of workshop section's reaction time is restored, the oxidation section reaction time is 2~8h；The catalyst being added in the step S32 is
Fe (II), the oxidant of addition are hydrogen peroxide, and the dosage of catalyst is respectively 1~10g/L, and the dosage of oxidant is 5 ‰
~5%；Alkaline agent in described step S15, S31 and S33 is from NaOH, Ca (OH)2, one or more of KOH mixing；Institute
Stating flocculant in step S15 and S34 is PB1 gene and/or polyacrylamide PAM, and additional amount is 2~20g/L；It is described
Flocculation aid in step S15 is polyacrylamide PAM.
Embodiment 2: organic with the high-concentration hardly-degradable that Shaanxi coke-oven plant is got using the device and method implemented in 1
For waste water, that is, semi-coke wastewater, waste water quality index such as the following table 1:
1 semi-coke wastewater water quality indicator of table
By waste water 1000m3/ d once passes through pretreatment system, biochemical treatment system and advanced treatment system；
(1) preprocessing process: pretreatment system includes the collecting pit 1 being sequentially communicated, adjusts sour device 2, efficient oil-isolating device
3, selective electrocatalysis oxidation apparatus (SECO) 4, selective catalytic reduction oxidation unit (SCRO) 5, neutralization precipitation pond 6；
S11 tune acid: after organic wastewater is discharged into collecting pit 1, by pumping to adjust the sour addition sulfuric acid of device 2 and/or hydrochloric acid into
Row pH value is adjusted, and the pH value of organic wastewater is made to be adjusted to 2, and the organic wastewater phenols after acidification is largely precipitated, and is layered rapidly；
S12 oil removal: organic wastewater is recycled by efficient oil-isolating device 3 after acidified, in organic wastewater
Upper layer oil slick and heavy bottom oil separated, to achieve the purpose that oil removing；
S13 electrocatalysis oxidation reaction: the clear water after oil removal separates enters selective electrocatalysis oxidation apparatus (SECO) 4,
It is catalyst Fe to be added using high voltage direct current and simultaneously, the catalysis oxidation of selectivity, voltage 5 is carried out to the organic matter in waste water
Wan Fu；
S14 is catalyzed redox reaction: the organic wastewater through ECO catalysis oxidation enters selective catalytic reduction oxidation unit
(SCRO) 5, selective catalytic reduction oxidation unit (SCRO) 5 be using catalyst and oxidant, to the organic matter in waste water into
The catalyst of the catalysis reduction and catalysis oxidation of row selectivity, addition is Fe (II), and the oxidant of dosage 1g/L, addition are
Hydrogen peroxide, dosage 1% restore workshop section's reaction time 3h, and the oxidation section reaction time is 4h；
S15 neutralization reaction: the organic wastewater after being catalyzed redox reaction enters neutralization precipitation pond 6, in neutralization precipitation
Alkaline agent NaOH or/and Ca (OH) is added in pond2Or/and KOH, organic wastewater is neutralized to neutrality, and add flocculant and/or help
Solidifying agent is sufficiently reacted, and after neutralizing coagulating sedimentation reaction, by sludge settling therein, supernatant liquor is entered biochemical treatment system
System；Flocculant is PB1 gene, ferric sulfate and/or polyacrylamide PAM, additional amount 10g/L；Flocculation aid is poly- third
Acrylamide PAM；
(2) biochemical treatment process: biochemical treatment system includes the biochemical conditioning tank 7 being sequentially communicated, hydrolysis acidification pool 8, interior
Recirculation reactor (ICR) 9, the pond A, that is, anoxic pond 10, the pond O, that is, aerobic tank 11, secondary settling tank 12；
S21 biochemistry is adjusted: organic wastewater hydraulic retention 12h in biochemical conditioning tank 7 will be obtained after pretreatment, to organic
Waste water plays the role of homogeneous；
S22 hydrolysis acidification: the organic wastewater after homogeneous enters hydraulic retention 3 days in hydrolysis acidification pool 8, passes through hydrolysis acid
The effect for changing bacterium, makes organic wastewater be hydrolyzed and be acidified, prepares to Anaerobic Treatment；
The reaction of S23 internal circulating anaerobic: the organic wastewater after hydrolysis acidification enters inner circulation reactor (ICR) 9, interior circulation
Culture uses particle anaerobic bacteria in reactor (ICR) 9, is disposed with two layers of gas, solid, liquid three-phase separate in inner circulation reactor (ICR) 9
From device, the hydraulic detention time 4h of inner circulation reactor (ICR) 9, volumetric loading rate 75kgCOD/ (m of intaking3·h)；
S24 anoxic/aerobic reaction: the organic wastewater reacted through internal circulating anaerobic enters anoxic pond 10 (pond A), in anoxic pond
It is acted in 10 by bacteria bio, hypoxia response and anti-nitration reaction occurs, (pond the A) dissolved oxygen value of anoxic pond 10 is less than 0.2mg/
L is stopped 2 days；Anoxic pond 10 (pond A) water outlet enters aerobic tank 11 (pond O), stops 2 days, wastewater sludge reflux ratio 2, aerobic tank 11
(pond O) dissolved oxygen value drains into secondary settling tank 12 by sludge pump in 1~5mg/L, the excess sludge of aerobic tank 11 (pond O)；
The processing of S25 sedimentation in secondary sedimentation tank: excess sludge and water are subjected to precipitation and separation, isolated excess sludge goes Treatment of Sludge
System；
After biochemical treatment system, COD 175mg/L；
(3) advanced treatment process: advanced treatment system includes the preparing pool 13 being sequentially communicated, fluidized bed oxidizing tower (FBR)
14, degassing pond 15, coagulative precipitation tank 16, clear water reserviors 17 are neutralized；
S31: the organic wastewater by biochemical treatment enters preparing pool 13, and acid or lye is added in hydraulic retention 18h thereto
And be uniformly mixed, so that pH is adjusted to 1；The alkali of addition is NaOH or/and Ca (OH)2Or/and KOH, the acid of addition be sulfuric acid and/or
Hydrochloric acid；
S32: the organic wastewater after acid-base accommodation enters fluidized bed oxidizing tower (FBR) 14, direct using strong oxidizer
Remaining hardly degraded organic substance is direct oxidation into carbon dioxide and water；Catalyst Fe (II) and oxidant dioxygen are added thereto
Water, dosage are respectively 8g/L, and the oxidant of addition is hydrogen peroxide, dosage 53%, hydraulic detention time 2h；
S33: the organic wastewater through peroxidating enters neutralization degassing pond 15, by the way that NaOH or/and Ca (OH) is added2Or/and
KOH adjusts pH to 7 or so, and blasts air in lower section, to remove the reagent of excessive carbon dioxide and addition；
S34: PB1 gene is added from coagulative precipitation tank 16 is flow in the organic wastewater after neutralized adjusting thereto
And/or polyacrylamide PAM, the additive amount of flocculant is 2g/L, is then acted on by internal tube settling, and discharge precipitating is dirty
Mud, clear water flow into clear water reserviors 17, and water quality reaching standard is back to quenching in factory, not outlet；
Clear water reserviors export water quality, COD 95mg/L, ammonia nitrogen 18mg/L.
For the ordinary skill in the art, specific embodiment has only carried out exemplary retouch to the utility model
It states, it is clear that the utility model specific implementation is not subject to the restrictions described above, such as type, the kind of catalyst of replacement reactor
Class and dosage etc., as long as using the improvement of the method concept of the utility model and the various unsubstantialities of technical solution progress,
Or it is not improved the conception and technical scheme of the utility model are directly applied into other occasions, in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of high concentration hard-degraded organic waste water processing unit, which is characterized in that including what is be sequentially communicated by system pipeline
Pretreatment system, biochemical treatment system and advanced treatment system；
The pretreatment system includes the collecting pit being sequentially communicated, adjusts sour device, efficient oil-isolating device, selective electrocatalytic oxidation
Device SECO, selective catalytic reduction oxidation reactor SCRO and neutralization precipitation pond, the selective catalytic reduction oxidation reaction
Device SCRO includes selective catalytic reduction device SCR and selective catalytic oxidation device SCO, the selective catalytic reduction device
SCR is successively mutually indepedent with the selective catalytic oxidation device SCO and is connected；
The biochemical treatment system includes the biochemical conditioning tank, hydrolysis acidification pool, inner circulation reactor ICR, anoxic being sequentially communicated
Pond, aerobic tank and secondary settling tank；The inner circulation reactor ICR is successively arranged waterpower even distribution device and two layers of three-phase bottom-up
The top of separator, the inner circulation reactor ICR is equipped with moisture trap；
The advanced treatment system includes the preparing pool being sequentially communicated, fluidized bed oxidizing tower FBR, neutralizes degassing pond, coagulating sedimentation
Pond and clear water reserviors.
2. high concentration hard-degraded organic waste water processing unit according to claim 1, which is characterized in that the selectivity electricity
Catalytic oxidizing equipment SECO includes DC power supply and catalyst oxidation reactor, and the DC power supply setting is anti-in the catalysis oxidation
It answers outside device.
3. high concentration hard-degraded organic waste water processing unit according to claim 1, which is characterized in that the efficient oil removal
The top of device is equipped with Oil scraper and oil separating plate, can recycle light oil and heavy oil simultaneously, and carry out water-oil separating.
4. high concentration hard-degraded organic waste water processing unit according to claim 1, which is characterized in that the selectivity is urged
Change oxidation unit SCO and be equipped with the first reflux pump, the bottom of the lower section of the selective catalytic reduction device SCR is equipped with the first air
Entrance, and position corresponding with first air intake is equipped with the first sky in the selective catalytic reduction device SCR
Gas even distribution device.
5. high concentration hard-degraded organic waste water processing unit according to claim 1, which is characterized in that the hydrolysis acidification
Pond is provided with cover board and waterpower partition, and the cover board is located at the top of the hydrolysis acidification pool and is parallel to the hydrolysis acidification pool
Horizontal direction；The waterpower partition setting is connected in the hydrolysis acidification pool, and from the bottom of the hydrolysis acidification pool
The cover board is simultaneously mutually perpendicular to the cover board.
6. high concentration hard-degraded organic waste water processing unit according to claim 1, which is characterized in that the interior circulation is anti-
Device ICR is answered to be equipped with the second reflux pump, the upper layer of two layers of three phase separator is arranged in one end of second reflux pump, another
The lower section of the waterpower even distribution device is arranged in end；The waterpower even distribution device and two layers of three phase separator are parallel to each other and set
It sets in the inner circulation reactor ICR；Automatic mud scraper is equipped in the secondary settling tank, the automatic mud scraper includes scraping mud
Device, main shaft and motor, the upper end of the main shaft are connected with motor, and the main shaft passes through described two from the top of the secondary settling tank and sinks
Pond enters to the bottom in the secondary settling tank, and the bottom of the main shaft is connected with scraper；The fluidized bed oxidizing tower FBR is equipped with
Third reflux pump.
7. high concentration hard-degraded organic waste water processing unit according to claim 1, which is characterized in that the biochemical adjusting
The lower section in pond is equipped with second air intake, and position corresponding with the second air intake is set in the biochemical conditioning tank
There is the second air even distribution device；The lower section of the aerobic tank is equipped with third air intake, and with described the in the aerobic tank
The corresponding position of three air intakes is equipped with third air even distribution device；The lower section of the preparing pool is equipped with the 4th air intake,
And position corresponding with the 4th air intake is equipped with the 4th air even distribution device in the preparing pool；Described neutralize takes off
The lower section in gas pond is equipped with the 5th air intake；And position corresponding with the 5th air intake in described and in degassing pond
CO equipped with the 5th air even distribution device, for going to generate in water removal2And extra oxidant；It is set in the coagulative precipitation tank
There is evenly spaced inclined tube, for increasing the effect of precipitating.
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