CN108341556A - A kind of advanced treatment of wastewater and the system and method for acid-basic regenerated waste liquids in water reuse - Google Patents
A kind of advanced treatment of wastewater and the system and method for acid-basic regenerated waste liquids in water reuse Download PDFInfo
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- CN108341556A CN108341556A CN201810358446.XA CN201810358446A CN108341556A CN 108341556 A CN108341556 A CN 108341556A CN 201810358446 A CN201810358446 A CN 201810358446A CN 108341556 A CN108341556 A CN 108341556A
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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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- 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
- C02F2001/007—Processes including a sedimentation step
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- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
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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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/163—Nitrates
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
- C02F3/1273—Submerged membrane bioreactors
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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Abstract
The invention discloses a kind of advanced treatment of wastewater and the system and method for acid-basic regenerated waste liquids in water reuse, system includes biochemistry pool, sedimentation basin, Powdered Activated Carbon membrane bioreactor, resin container, waste collection pond, denitrification pond, nitrification tank, sludge concentration tank；Sewage plant water inlet enters biochemistry pool after pretreatment, by the effect degradation CODcr of activated sludge, supernatant flows into Powdered Activated Carbon membrane bioreactor after sedimentation, and pollutant is further adsorbed by Powdered Activated Carbon, utilize the retention of membrane module, removal coloration, suspended matter, CODcr；Resin container is sent into film water outlet, by the suction-operated of obligate nitrate ion exchanger resin, removes the nitrate in sewage, water purification direct emission；Acid-basic regenerated waste liquids in water flows into waste collection pond, is sent into denitrification pond denitrogenation, and denitrification water outlet flows into nitrification tank and carries out nitration reaction, reduce ammonia nitrogen and the CODcr that degrades, nitrification liquid is back to denitrification pond, and final nitrification tank water outlet is all back to front end biochemistry pool, realizes the reuse of acid-basic regenerated waste liquids in water.
Description
Technical field
The invention belongs to technical field of sewage, are related to a kind of system and method for thin stillage recycling, and in particular to a kind of
Advanced treatment of wastewater and the system and method for acid-basic regenerated waste liquids in water reuse.
Background technology
With urban construction and industrial expansion, sanitary sewage and industrial wastewater yield are also being constantly increasing.China
Most sewage treatment plants routinely use biochemical process treated sewage, although water outlet can reach level-one A or level-one B standard, so
And the trace contaminants such as remaining pollutant such as COD, BOD, SS, ammonia nitrogen, total nitrogen (TN), total phosphorus (TP) are strong to human body in tail water
Health and surrounding enviroment generate larger hidden danger.To eliminate these polluters to greatest extent, while being put into effect more in response to country
Add stringent sewage discharge policy, be badly in need of on the basis of seeking Economic optimization, researchs and develops respective depth water treatment technology.
It is directed to the advanced treatment process of municipal sewage plant at present, removal COD mainly has biochemical process：Wetland, oxidation pond, physics
Method：Micro-filtration, ultrafiltration, nanofiltration, reverse osmosis, activated carbon adsorption；Removal TN mainly has biochemical process：Denitrification, chemical method：Electrolysis,
Redox；Physisorphtion：Macropore denitrogenation resin；Removal ammonia nitrogen mainly has biochemical process：Contact oxidation method, activated sludge process
Deng.
Biochemical process carries out denitrification and there is a problem of carbon source deficiency, and must assure that sufficiently long hydraulic detention time ability
Achieve the effect that remove ammonia nitrogen, and biochemical treatment process floor space is larger, not being suitable for scene has the system of stringent land used limitation；
Physical filtering method can effectively remove SS, but only rely on micro-filtration, ultrafiltration technology is difficult to decrease COD, nanofiltration or reverse osmosis then cost compared with
It is high；Activated carbon can effectively adsorb the organic pollution in waste water, can meet the emission request of COD, but large-scale use will meet
Face regeneration and handling problems, oxidation-reduction method denitrogenation will produce by-product, probably cause secondary pollution；There are denitrogenation effects for electrolysis nitrogen
The problems such as rate is low, energy consumption is big.
The Powdered Activated Carbon membrane bioreactor just having gradually developed at this stage, in the reactor collect activated carbon adsorption,
Biological activated carbon, microbial biochemical degradation, aeration oxygen replenishing, UF membrane multiple functions are integrated, can remove COD, ammonia nitrogen, colloid and
Suspended matter.Macropore denitrogenation resin adsorption law technology is ripe, nitric efficiency is high, automatic operating degree is high, but the tree of adsorption saturation
Fat needs regular regeneration, regeneration liquid waste to contain the chlorion and nitrate ion of higher concentration, and such as processing will make environment not in time
At secondary pollution.If the disposal difficulties of acid-basic regenerated waste liquids in water can not be efficiently solved, macropore denitrogenation resin adsorption method is difficult to
Sewage water denitrification field is promoted and application.
Invention content
In order to solve the above technical problems, the present invention provides a kind of advanced treatment of wastewater and acid-basic regenerated waste liquids in water reuses
System and method.
Technical solution is used by the system of the present invention：A kind of advanced treatment of wastewater and acid-basic regenerated waste liquids in water reuse are
System, it is characterised in that：Including biochemistry pool, sedimentation basin, Powdered Activated Carbon membrane bioreactor, resin container, waste collection pond, anti-nitre
Change pond, nitrification tank, sludge concentration tank；
Sewage plant is intake after pretreatment, and the biochemistry pool is initially entered, and is dropped by the effect of Microbial Communities in Activated Sludge
Pollutant is solved, muddy water mixed solution is separated by solid-liquid separation by sedimentation basin, and sludge drains into the sludge concentration tank, and water outlet enters the powder
Activated charcoal membrane bioreactor, adds a certain amount of Powdered Activated Carbon, further adsorbs pollutant and color species difficult to degrade,
Activated carbon slurry circulative accumulation in the Powdered Activated Carbon membrane bioreactor, periodically drains into the sludge concentration tank, goes out on a small quantity
Water flows into the resin container, by the effect of obligate nitrate ion exchanger resin, removes the nitrate anion in sewage, reduces water outlet
Total nitrogen, standard water discharge discharge realize advanced treatment of wastewater；
It needs to be regenerated with sodium chloride solution after resin adsorption saturation in the resin container, the waste liquid centralized collection of formation is to described
Waste collection pond enters the denitrification pond and carries out denitrification, acted on removing by denitrifying bacteria under anoxic conditions later
Nitrate nitrogen in waste liquid, water outlet enter the nitrification tank, are acted on by nitrobacteria under aerobic condition and nitration reaction occurs, into
One step reduces ammonia nitrogen, CODcr contents, and the nitrification tank goes out water mixed liquid and is back to the denitrification pond, the nitrification tank first
The muddy water mixed solution finally flowed out is all back to the biochemistry pool, realizes the reuse of acid-basic regenerated waste liquids in water.
Technical solution used by the method is：A kind of advanced treatment of wastewater and the method for acid-basic regenerated waste liquids in water reuse,
It is characterized by comprising the following steps：
Step 1：It is that system is intake with sewage plant pretreatment water outlet, initially enters biochemistry pool, pass through micro- life in activated sludge
The effect degradation of contaminant of object, muddy water mixed solution are separated by solid-liquid separation by sedimentation basin, and sludge drains into sludge concentration tank, and water outlet enters powder
Last activated charcoal membrane bioreactor；
Step 2：A certain proportion of Powdered Activated Carbon is added into Powdered Activated Carbon membrane bioreactor, further absorption is difficult
The pollutant and color species of degradation, activated carbon slurry circulative accumulation in Powdered Activated Carbon membrane bioreactor are periodically a small amount of to arrange
To sludge concentration tank, water outlet flows into resin container；
Step 3：Sewage flows through resin container, by the effect of obligate nitrate ion exchanger resin, removes the nitre in sewage
Acid group reduces water outlet total nitrogen, standard water discharge discharge；
Step 4：The resin of adsorption saturation carries out desorption and regeneration using 4.0%~5.0% NaCl solution, regenerates formation
Waste collection enters denitrification pond and carries out denitrification, add carbon source under anoxic conditions, pass through anti-nitre later to waste collection pond
Change the nitrate nitrogen in bacterial action removal waste liquid, is translated into N2Removing, water outlet enter nitrification tank；
Step 5：In nitrification tank, is acted on by nitrobacteria under aerobic condition and nitration reaction occurs, further decreased
Ammonia nitrogen, CODcr contents, nitrification tank go out water mixed liquid and are back to denitrification pond, the muddy water mixed solution that nitrification tank finally flows out first
It all is back to former biochemistry pool, realizes the reuse of acid-basic regenerated waste liquids in water.
The method of the present invention has the characteristics that and advantageous effect：Using " biochemical process ", " Powdered Activated Carbon ", " ultrafiltration membrane
The mode that method ", " resin adsorption method " are combined carries out advanced treatment of wastewater, in Powdered Activated Carbon membrane bioreactor, passes through
A large amount of aerations, Powdered Activated Carbon can effectively adsorb organic pollution and color species difficult to degrade, and reduce ammonia nitrogen, pass through submergence
Formula hyperfiltration membrane assembly filters, and active powdered carbon, suspended matter, colloid etc. is all retained, for water outlet COD, ammonia nitrogen, coloration, turbidity
Removal effect is notable；Simultaneously because a part of microorganism can enter in activated carbon internal capillary, hypoxgia is dissolved in inner void
Anaerobic environment is formed, there is certain denitrification effect, therefore Powdered Activated Carbon membrane bioreactor also has certain nitric acid
Salt nitrogen remove；Resin adsorption ion-exchange denitrification method have technology maturation, equipment is simple, operational management is convenient, nitrate
The advantages such as removal degree is high, operating cost is low, compared with prior art, nitrate anion selective ion exchange of the present invention
Resin, is obligate nitrate anion resin, and performance is stablized, it is possible to reduce the competitive Adsorption of sulfate ion, the pollution of resistance to organic matter take off
Nitrogen is efficient, desorption and regeneration and can be reused using common table salt water；Using " denitrification method-nitrification process-is back to original
The mode of biochemistry pool " carries out the processing and reuse of regeneration liquid waste, adds in denitrification pond and nitrification tank and is successfully trained under high salinity
The activated sludge for domesticating, even if sodium chloride content is higher in the regeneration liquid waste flowed into, in certain salinity range (sodium chloride content
Higher bioactivity is still can guarantee no more than denitrifying bacterium in 5%) and nitrifier, to fingers such as nitrate nitrogen, ammonia nitrogen, CODcr
It is notable to mark removal effect, the denitrifying converted product N of nitrate nitrogen2It is directly discharged to air, effluent recycling to former biochemistry pool makes
Obtained abundant reuse, the outer row of any pollutant is not generated in entire acid-basic regenerated waste liquids in water processing procedure.Whole system has
Have the advantages that stable effluent quality, floor space are small, nitric efficiency is high, it is low to go out aqueous suspension, sludge quantity is few, water outlet, which can stablize, to be reached
It arrives《Water environment quality standard》(GB3838-2002) III class to IV class standard.
Description of the drawings
Fig. 1：The system construction drawing of the embodiment of the present invention；
Fig. 2：The method flow diagram of the embodiment of the present invention.
In figure, 1. biochemistry pools, 2. sedimentation basins, 3. Powdered Activated Carbon membrane bioreactors, 4. resin containers, 5. waste collections
Pond, 6. denitrification ponds, 7. nitrification tanks, 8. sludge concentration tanks, 9. carbon source tanks, 10. feeding apparatus for powdered activated charcoal, 11. micropores expose
Device of air, 12. wind turbines.
Specific implementation mode
The present invention is understood and implemented for the ease of those of ordinary skill in the art, and the present invention is made into one below in conjunction with the accompanying drawings
The detailed description of step, it should be understood that implementation example described herein is merely to illustrate and explain the present invention, and is not used to limit
The present invention.
Referring to Fig.1, a kind of advanced treatment of wastewater provided by the invention and the system of acid-basic regenerated waste liquids in water reuse, including biochemistry
Pond 1, sedimentation basin 2, Powdered Activated Carbon membrane bioreactor 3, resin container 4, waste collection pond 5, denitrification pond 6, nitrification tank 7, dirt
Mud thickener 8；
Sewage plant is intake after pretreatment, and biochemistry pool 1 is initially entered, and is degraded by the effect of Microbial Communities in Activated Sludge dirty
Object is contaminated, muddy water mixed solution is separated by solid-liquid separation by sedimentation basin, and sludge drains into sludge concentration tank 8, and water outlet enters powder activity carbon membrane and gives birth to
Object reactor 3, adds the Powdered Activated Carbon of 30~50mg/L, further adsorbs pollutant and color species difficult to degrade, activity
Charcoal slurry circulative accumulation in Powdered Activated Carbon membrane bioreactor 3, periodically drains into sludge concentration tank 8 on a small quantity, and water outlet flows into resin
Tank 4 removes the nitrate anion in sewage by the effect of obligate nitrate ion exchanger resin, reduces water outlet total nitrogen, standard water discharge
Discharge realizes advanced treatment of wastewater；
It is that every 10~15min is primary that Powdered Activated Carbon membrane bioreactor 3, which needs regular backwash, chemical cleaning, backwash frequency,
Chemical cleaning frequency is 1~2 month primary；
It needs to be regenerated with sodium chloride solution after resin adsorption saturation in resin container 4, sodium chloride in the waste liquid that resin regeneration is formed
Content be 1.5%~2.5%, nitrate nitrogen content be 650~800mg/L, waste liquid centralized collection to waste collection pond 5, it is laggard
Enter denitrification pond 6 and carry out denitrification, and add carbon source, carbon source converts 3~4 that COD dosages are nitrate concentration in denitrification pond 7
Times, the content control of dissolved oxygen is 0.5~1.0mg/L, and sludge concentration is 3000~5000mg/L, under anoxic conditions by coming
Derived from the nitre state passed through under certain salinity in the denitrifying bacteria effect removal waste liquid in the successfully activated sludge flora of domestication
Nitrogen, water outlet enter nitrification tank 7, and the content control of dissolved oxygen is 2.0~4.0mg/L, and sludge concentration is 3000~5000mg/L,
By acting on hair from the nitrobacteria passed through under certain salinity in the successfully activated sludge flora of domestication under aerobic condition
Raw nitration reaction, further decreases ammonia nitrogen, CODcr contents, and nitrification tank 7 goes out water mixed liquid and is back to denitrification pond 6 first, nitrification
The muddy water mixed solution that pond 7 is finally flowed out all is back to biochemistry pool 1, realizes the reuse of acid-basic regenerated waste liquids in water.
Submerged ultrafiltration component is equipped in the Powdered Activated Carbon membrane bioreactor 3 of the present embodiment, membrane material is in PVC
Empty fiber membrane, filtering accuracy：0.001~0.02 μm, filter type：Inner pressed produces water turbidity ＜ 0.1NTU, maximum influent pressure
Power：0.45MPa adds a certain amount of Powdered Activated Carbon in Powdered Activated Carbon membrane bioreactor 3, adsorbs pollutant difficult to degrade
And color species, active powdered carbon is intercepted using submerged ultrafiltration component, reduce water outlet CODcr, coloration, suspended matter and
Colloid.
The obligate nitrate ion exchanger resin filled in the resin container 4 of the present embodiment, be large pore anion nitrate anion from
Subtree fat, mode of appearance are spherical particle, and skeleton is polyethylene-divinylbenzene, and functional group is quaternary amine base, and particle size range is
300~1200 μm, full exchange capacity is more than 900mol/m3, water content 50-56%, loading density 675-720g/l.
The present embodiment is also equipped with carbon source tank 9 and feeding apparatus for powdered activated charcoal 10, for adding carbon source into denitrification pond 6
Powdered Activated Carbon is added with into Powdered Activated Carbon membrane bioreactor 3；Micropore exposure is equipped in denitrification pond 6 and nitrification tank 7
Device of air 11 is supplied oxygen by wind turbine 12, and launches the activated sludge successfully tamed by high salinity.
It is equipped with aerator in biochemistry pool 1 and Powdered Activated Carbon membrane bioreactor 3, is aerated by wind turbine.
The system of the present embodiment can realize PLC Automatic Controls.
Present invention employs the modes that " biochemical process ", " Powdered Activated Carbon ", " ultrafiltrationmembrane process ", " resin adsorption method " are combined
Advanced treatment of wastewater is carried out, resin is carried out again in such a way that " denitrification method-nitrification process-is back to former biochemistry pool " is combined
The processing and reuse of raw waste liquid, particular technique principle are as follows：
Sewage plant is intake after pretreatment, and biochemistry pool is initially entered, and is dropped by the effect of Microbial Communities in Activated Sludge in pond
Pollutant is solved, and by sedimentation basin mud-water separation, reduces water outlet CODcr, ammonia-nitrogen content, flows into Powdered Activated Carbon membrane biological reaction
Device adds Powdered Activated Carbon, and by being largely aerated, dust active carbon can effectively adsorb organic pollution and color species difficult to degrade,
And ammonia nitrogen is reduced, by submerged ultrafiltration component filters, active powdered carbon, suspended matter, colloid etc. are all retained, for water outlet
COD, ammonia nitrogen, coloration, turbidity removal significant effect；Simultaneously because a part of microorganism can enter in activated carbon internal capillary, it is interior
Hypoxgia is dissolved in portion's hole and forms anaerobic environment, and there is certain denitrification effect, therefore Powdered Activated Carbon membrane biological reaction
Device also has certain nitrate nitrogen remove；The obligate nitrate anion resin of filling, is inhaled by ion-exchange in resin container
Nitrate ion in attached water inlet, obligate nitrate anion resin can reduce the competitive Adsorption of sulfate ion, the pollution of resistance to organic matter,
Nitric efficiency is high, and the content for being discharged nitrate nitrogen is less than 1mg/L, is taken off to it using common table salt water after resin adsorption saturation
Attached regeneration, the nitrate ion that resin is adsorbed and other impurities elution remove, and are allowed to restore original composition and performance.
Regeneration liquid waste initially enters denitrification pond and carries out denitrification processing, and the work successfully tamed by high salinity is launched in pond
Property sludge, the salinity not higher than 5% can be born, denitrifying bacterium still keeps higher activity with this condition, by nitric acid in sewage
Root is converted into N2It is directly discharged to air, water outlet enters nitrification tank, is acted on by the nitrobacteria that success is tamed under high salinity, will
Mineralized nitrogen is nitrate nitrogen, and mixed-liquor return to denitrification pond further removes ammonia nitrogen, nitrate nitrogen, and nitrification tank finally flows out
Muddy water mixed solution without separation, be all back to former biochemistry pool, realize the processing and reuse of regeneration liquid waste, entire resin is again
Raw waste treatment process does not generate the outer row of any pollutant.
See Fig. 2, the method for a kind of advanced treatment of wastewater provided by the invention and acid-basic regenerated waste liquids in water reuse, including it is following
Step：
Step 1：It is that system is intake with sewage plant pretreatment water outlet, initially enters biochemistry pool 1, pass through micro- life in activated sludge
The effect degradation of contaminant of object, muddy water mixed solution are separated by solid-liquid separation by sedimentation basin 2, and sludge drains into sludge concentration tank 8, and water outlet enters
Powdered Activated Carbon membrane bioreactor 3；
Step 2：A certain proportion of Powdered Activated Carbon, Powdered Activated Carbon are added into Powdered Activated Carbon membrane bioreactor 3
Dosage be 30~50mg/L, further adsorb pollutant and color species difficult to degrade, activated carbon is starched in Powdered Activated Carbon
Circulative accumulation in membrane bioreactor 3, periodically drains into sludge concentration tank on a small quantity, and water outlet flows into resin container 4；Powder activity carbon membrane is given birth to
It is that every 10~15min is primary that object reactor 3, which needs regular backwash, chemical cleaning, backwash frequency, and chemical cleaning frequency is 1~2 month
Once；
Step 3：Sewage flows through resin container 4, by the effect of obligate nitrate ion exchanger resin, removes the nitre in sewage
Acid group reduces water outlet total nitrogen, standard water discharge discharge；
Step 4：The resin of adsorption saturation carries out desorption and regeneration, resin regeneration shape using 4.0%~5.0% NaCl solution
At waste liquid in sodium chloride content be 1.5%~2.5%, nitrate nitrogen content is 650~800mg/L, and waste liquid first collects to waste liquid
Collecting pit 5 enters denitrification pond 6 and carries out denitrification later, and the content control of dissolved oxygen is 0.5~1.0mg/L, and sludge concentration is
3000~5000mg/L, and carbon source is added under anoxic conditions, it is nitrate concentration in denitrification pond 6 that carbon source, which converts COD dosages,
3~4 times, by acting on removal from the denitrifying bacteria that passes through under certain salinity in successfully acclimated activated sludge flora
Nitrate nitrogen in waste liquid, is translated into N2Removing, water outlet enter nitrification tank 7；
Step 5：In nitrification tank 7, the control of the content of dissolved oxygen is 2.0~4.0mg/L, sludge concentration is 3000~
5000mg/L, by thin from the nitrification passed through under certain salinity in successfully acclimated activated sludge flora under aerobic condition
Nitration reaction occurs for bacterium effect, further decreases ammonia nitrogen, CODcr contents, nitrification tank 7 goes out water mixed liquid and is back to denitrification first
Pond 6, the muddy water mixed solution that nitrification tank 7 finally flows out all are back to biochemistry pool 1, realize the reuse of acid-basic regenerated waste liquids in water.
It should be understood that the part that this specification does not elaborate belongs to the prior art.
It should be understood that the above-mentioned description for preferred embodiment is more detailed, can not therefore be considered to this
The limitation of invention patent protection range, those skilled in the art under the inspiration of the present invention, are not departing from power of the present invention
Profit requires under protected ambit, can also make replacement or deformation, each fall within protection scope of the present invention, this hair
It is bright range is claimed to be determined by the appended claims.
Claims (10)
1. a kind of advanced treatment of wastewater and the system of acid-basic regenerated waste liquids in water reuse, it is characterised in that：Including biochemistry pool (1), precipitation
Pond (2), Powdered Activated Carbon membrane bioreactor (3), resin container (4), waste collection pond (5), denitrification pond (6), nitrification tank
(7), sludge concentration tank (8)；
Sewage plant is intake after pretreatment, and the biochemistry pool (1) is first fed into, and is degraded by the effect of Microbial Communities in Activated Sludge
Pollutant, muddy water mixed solution are sent into the sedimentation basin (2) and are separated by solid-liquid separation；It is dense that the interior sludge of the sedimentation basin (2) drains into the sludge
The Powdered Activated Carbon membrane bioreactor (3) is sent into contracting pond (8), water outlet；In the Powdered Activated Carbon membrane bioreactor (3)
A certain amount of Powdered Activated Carbon has been added, pollutant and color species difficult to degrade are further adsorbed；The powder activity carbon membrane
The interior activated carbon slurry of bioreactor (3) periodically drains on a small quantity in the interior circulative accumulation of the Powdered Activated Carbon membrane bioreactor (3)
The sludge concentration tank (8)；The resin container (4) is sent into Powdered Activated Carbon membrane bioreactor (3) water outlet, by obligate
The effect of nitrate ion exchanger resin removes the nitrate anion in sewage, reduces water outlet total nitrogen, and standard water discharge discharge realizes dirt
Water depth processing；
The interior resin adsorption of the resin container (4) gets the full passing sodium chloride solution regeneration, and the waste liquid centralized collection of formation is given up to described
Liquid collecting pit (5) is sent into the denitrification pond (6) and carries out denitrification later；It is acted under anoxic conditions by denitrifying bacteria
The nitrate nitrogen in waste liquid is removed, the nitrification tank (7) is sent into water outlet, is nitrified by nitrobacteria effect under aerobic condition
Reaction, further decreases ammonia nitrogen, CODcr contents；The nitrification tank (7) goes out water mixed liquid and is first back to the denitrification pond (6),
The muddy water mixed solution that the nitrification tank (7) is finally flowed out all is back to the biochemistry pool (1), realizes acid-basic regenerated waste liquids in water
Reuse.
2. advanced treatment of wastewater according to claim 1 and the system of acid-basic regenerated waste liquids in water reuse, it is characterised in that：It is described
Submerged ultrafiltration component is equipped in Powdered Activated Carbon membrane bioreactor (3), membrane material is PVC hollow-fibre membranes, filtering essence
Degree is 0.001~0.02 μm, and filter type is inner pressed, produces water turbidity ＜ 0.1NTU, and maximum intake pressure is 0.45MPa；Institute
It states in Powdered Activated Carbon membrane bioreactor (3) and adds a certain amount of Powdered Activated Carbon, adsorb pollutant difficult to degrade and coloration
Substance intercepts active powdered carbon using submerged ultrafiltration component, reduces water outlet CODcr, coloration, ammonia nitrogen, nitrate nitrogen, hangs
Float and colloid.
3. advanced treatment of wastewater according to claim 1 and the system of acid-basic regenerated waste liquids in water reuse, it is characterised in that：It is described
Obligate nitrate ion exchanger resin is large pore anion nitrate ion resin, and mode of appearance is spherical particle, and skeleton is poly-
Ethylene-divinylbenzene, functional group are quaternary amine base, and particle size range is 300~1200 μm, and full exchange capacity is more than 900mol/m3,
Water content is 50-56%, loading density 675-720g/l.
4. advanced treatment of wastewater according to claim 1 and the system of acid-basic regenerated waste liquids in water reuse, it is characterised in that：It is described
It is equipped with microporous aeration device (11) in denitrification pond (6) and the nitrification tank (7), is supplied oxygen by wind turbine (12), and dispensing has
The activated sludge successfully tamed by high salinity.
5. advanced treatment of wastewater and the system of acid-basic regenerated waste liquids in water reuse according to any one of claims 1-4, special
Sign is：The system is also equipped with carbon source tank (9) and feeding apparatus for powdered activated charcoal (10)；The carbon source tank (9) is used for institute
It states and adds carbon source in denitrification pond (6), the feeding apparatus for powdered activated charcoal (10) is used for powder activity carbon membrane biology
Powdered Activated Carbon is added in reactor (3).
6. a kind of advanced treatment of wastewater and the method for acid-basic regenerated waste liquids in water reuse, which is characterized in that include the following steps：
Step 1：It is that system is intake with sewage plant pretreatment water outlet, initially enters biochemistry pool (1), pass through Microbial Communities in Activated Sludge
Effect degradation of contaminant, muddy water mixed solution is separated by solid-liquid separation by sedimentation basin (2), and sludge drains into sludge concentration tank (8), be discharged into
Enter Powdered Activated Carbon membrane bioreactor (3)；
Step 2：A certain proportion of Powdered Activated Carbon is added into Powdered Activated Carbon membrane bioreactor (3), further absorption is difficult
The pollutant and color species of degradation, activated carbon slurry is in Powdered Activated Carbon membrane bioreactor (3) interior circulative accumulation, periodically on a small quantity
Sludge concentration tank (8) is drained into, water outlet flows into resin container (4)；
Step 3：Sewage flows through resin container (4), by the effect of obligate nitrate ion exchanger resin, removes the nitric acid in sewage
Root reduces water outlet total nitrogen, standard water discharge discharge；
Step 4：The resin of resin container (4) interior adsorption saturation carries out desorption and regeneration using 4.0%~5.0% NaCl solution, then
The raw waste collection formed enters denitrification pond (6) and carries out denitrification, throw under anoxic conditions later to waste collection pond (5)
Add carbon source, the nitrate nitrogen in removal waste liquid is acted on by denitrifying bacteria, is translated into N2Removing, water outlet enter nitrification tank
(7)；
Step 5：In nitrification tank (7), is acted on by nitrobacteria under aerobic condition and nitration reaction occurs, further decrease ammonia
Nitrogen, CODcr contents, nitrification tank (7) go out water mixed liquid and are back to denitrification pond (6), the muddy water that nitrification tank (7) is finally discharged first
Mixed liquor is all back to biochemistry pool (1), realizes the reuse of acid-basic regenerated waste liquids in water.
7. advanced treatment of wastewater according to claim 6 and the method for acid-basic regenerated waste liquids in water reuse, it is characterised in that：Step
In 2, the dosage of Powdered Activated Carbon is 30~50mg/L；The Powdered Activated Carbon membrane bioreactor (3) regular backwash, chemistry
Cleaning, backwash frequency are that every 10~15min is primary, and chemical cleaning frequency is 1~2 month primary.
8. advanced treatment of wastewater according to claim 6 and the method for acid-basic regenerated waste liquids in water reuse, it is characterised in that：Step
In 4, sodium chloride content is 1.5%~2.5% in the waste liquid that resin regeneration is formed, and nitrate nitrogen content is 650~800mg/L.
9. advanced treatment of wastewater according to claim 6 and the method for acid-basic regenerated waste liquids in water reuse, it is characterised in that：Step
In 4, denitrification pond (6) the internal carbon source conversion COD dosages are 3~4 times of nitrate concentration in denitrification pond；Step 4 and step
In rapid 5, denitrifying bacteria and nitrobacteria in the denitrification pond (6) and the nitrification tank (7) derive from certain salt
The lower activated sludge flora for passing through successfully domestication of degree.
10. the method for the advanced treatment of wastewater and acid-basic regenerated waste liquids in water reuse according to claim 6-9 any one, special
Sign is：In step 4, the content control of dissolved oxygen is 0.5~1.0mg/L, and sludge concentration is 3000~5000mg/L；Step 5
In, the content control of dissolved oxygen is 2.0~4.0mg/L, and sludge concentration is 3000~5000mg/L.
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